botan: Add Botan plugin to libstrongswan
This commit is contained in:
René Korthaus
Tobias Brunner
parent
66c4735f99
commit
af26cc4d85
10
configure.ac
10
configure.ac
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@ -126,6 +126,7 @@ ARG_DISBL_SET([aes], [disable AES software implementation plugin.])
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ARG_ENABL_SET([af-alg], [enable AF_ALG crypto interface to Linux Crypto API.])
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ARG_ENABL_SET([bliss], [enable BLISS software implementation plugin.])
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ARG_ENABL_SET([blowfish], [enable Blowfish software implementation plugin.])
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ARG_ENABL_SET([botan], [enables the Botan crypto plugin.])
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ARG_ENABL_SET([ccm], [enables the CCM AEAD wrapper crypto plugin.])
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ARG_ENABL_SET([chapoly], [enables the ChaCha20/Poly1305 AEAD plugin.])
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ARG_DISBL_SET([cmac], [disable CMAC crypto implementation plugin.])
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@ -1149,6 +1150,12 @@ if test x$gcrypt = xtrue; then
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)
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fi
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if test x$botan = xtrue; then
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PKG_CHECK_MODULES(botan, [botan-2])
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AC_SUBST(botan_CFLAGS)
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AC_SUBST(botan_LIBS)
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fi
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if test x$uci = xtrue; then
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AC_CHECK_LIB([uci],[uci_alloc_context],[LIBS="$LIBS"],[AC_MSG_ERROR([UCI library libuci not found])],[])
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AC_CHECK_HEADER([uci.h],,[AC_MSG_ERROR([UCI header uci.h not found!])])
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@ -1399,6 +1406,7 @@ ADD_PLUGIN([pem], [s charon scepclient pki scripts manager meds
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ADD_PLUGIN([padlock], [s charon])
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ADD_PLUGIN([openssl], [s charon scepclient pki scripts manager medsrv attest nm cmd aikgen])
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ADD_PLUGIN([gcrypt], [s charon scepclient pki scripts manager medsrv attest nm cmd aikgen])
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ADD_PLUGIN([botan], [s charon scepclient pki scripts manager medsrv attest nm cmd aikgen])
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ADD_PLUGIN([af-alg], [s charon scepclient pki scripts medsrv attest nm cmd aikgen])
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ADD_PLUGIN([fips-prf], [s charon nm cmd])
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ADD_PLUGIN([gmp], [s charon scepclient pki scripts manager medsrv attest nm cmd aikgen fuzz])
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@ -1568,6 +1576,7 @@ AM_CONDITIONAL(USE_SQLITE, test x$sqlite = xtrue)
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AM_CONDITIONAL(USE_PADLOCK, test x$padlock = xtrue)
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AM_CONDITIONAL(USE_OPENSSL, test x$openssl = xtrue)
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AM_CONDITIONAL(USE_GCRYPT, test x$gcrypt = xtrue)
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AM_CONDITIONAL(USE_BOTAN, test x$botan = xtrue)
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AM_CONDITIONAL(USE_AGENT, test x$agent = xtrue)
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AM_CONDITIONAL(USE_KEYCHAIN, test x$keychain = xtrue)
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AM_CONDITIONAL(USE_PKCS11, test x$pkcs11 = xtrue)
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@ -1846,6 +1855,7 @@ AC_CONFIG_FILES([
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src/libstrongswan/plugins/padlock/Makefile
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src/libstrongswan/plugins/openssl/Makefile
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src/libstrongswan/plugins/gcrypt/Makefile
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src/libstrongswan/plugins/botan/Makefile
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src/libstrongswan/plugins/agent/Makefile
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src/libstrongswan/plugins/keychain/Makefile
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src/libstrongswan/plugins/pkcs11/Makefile
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@ -565,6 +565,13 @@ if MONOLITHIC
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endif
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endif
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if USE_BOTAN
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SUBDIRS += plugins/botan
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if MONOLITHIC
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libstrongswan_la_LIBADD += plugins/botan/libstrongswan-botan.la
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endif
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endif
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if USE_FIPS_PRF
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SUBDIRS += plugins/fips_prf
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if MONOLITHIC
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@ -0,0 +1,30 @@
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AM_CPPFLAGS = \
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-I$(top_srcdir)/src/libstrongswan
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AM_CFLAGS = \
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$(PLUGIN_CFLAGS) \
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$(botan_CFLAGS)
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if MONOLITHIC
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noinst_LTLIBRARIES = libstrongswan-botan.la
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else
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plugin_LTLIBRARIES = libstrongswan-botan.la
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endif
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libstrongswan_botan_la_SOURCES = \
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botan_plugin.h botan_plugin.c \
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botan_rng.h botan_rng.c \
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botan_hasher.h botan_hasher.c \
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botan_hmac.h botan_hmac.c \
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botan_crypter.h botan_crypter.c \
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botan_rsa_public_key.h botan_rsa_public_key.c \
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botan_rsa_private_key.h botan_rsa_private_key.c \
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botan_diffie_hellman.h botan_diffie_hellman.c \
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botan_ec_diffie_hellman.h botan_ec_diffie_hellman.c \
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botan_ec_public_key.h botan_ec_public_key.c \
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botan_ec_private_key.h botan_ec_private_key.c \
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botan_util.c \
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botan_gcm.h botan_gcm.c
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libstrongswan_botan_la_LDFLAGS = -module -avoid-version
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libstrongswan_botan_la_LIBADD = $(botan_LIBS)
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@ -0,0 +1,195 @@
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/*
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* Copyright (C) 2018 René Korthaus
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* Copyright (C) 2018 Konstantinos Kolelis
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* Copyright (C) 2018 Tobias Hommel
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* Rohde & Schwarz Cybersecurity GmbH
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include "botan_crypter.h"
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#include <botan/ffi.h>
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typedef struct private_botan_crypter_t private_botan_crypter_t;
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/**
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* Private data of botan_crypter_t
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*/
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struct private_botan_crypter_t {
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/**
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* Public part of this class
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*/
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botan_crypter_t public;
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/**
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* The key
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*/
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chunk_t key;
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/**
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* The cipher name
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*/
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const char* cipher_name;
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};
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/**
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* Do the actual en/decryption
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*/
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static bool crypt(private_botan_crypter_t *this, chunk_t data, chunk_t iv,
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chunk_t *dst, uint32_t init_flag)
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{
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botan_cipher_t cipher;
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size_t output_written = 0;
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size_t input_consumed = 0;
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uint8_t *in, *out;
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bool success = FALSE;
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in = data.ptr;
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if (dst)
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{
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*dst= chunk_alloc(data.len);
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out = dst->ptr;
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}
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else
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{
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out = data.ptr;
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}
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if (botan_cipher_init(&cipher, this->cipher_name, init_flag))
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{
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return FALSE;
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}
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if (!botan_cipher_set_key(cipher, this->key.ptr, this->key.len)
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&& !botan_cipher_start(cipher, iv.ptr, iv.len)
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&& !botan_cipher_update(cipher, BOTAN_CIPHER_UPDATE_FLAG_FINAL, out,
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data.len, &output_written, in, data.len,
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&input_consumed)
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&& (output_written == input_consumed))
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{
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success = TRUE;
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}
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botan_cipher_destroy(cipher);
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return success;
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}
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METHOD(crypter_t, decrypt, bool,
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private_botan_crypter_t *this, chunk_t data, chunk_t iv, chunk_t *dst)
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{
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return crypt(this, data, iv, dst, BOTAN_CIPHER_INIT_FLAG_DECRYPT);
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}
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METHOD(crypter_t, encrypt, bool,
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private_botan_crypter_t *this, chunk_t data, chunk_t iv, chunk_t *dst)
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{
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return crypt(this, data, iv, dst, BOTAN_CIPHER_INIT_FLAG_ENCRYPT);
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}
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METHOD(crypter_t, get_block_size, size_t,
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private_botan_crypter_t *this)
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{
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return AES_BLOCK_SIZE;
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}
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METHOD(crypter_t, get_iv_size, size_t,
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private_botan_crypter_t *this)
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{
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return AES_BLOCK_SIZE;
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}
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METHOD(crypter_t, get_key_size, size_t,
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private_botan_crypter_t *this)
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{
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return this->key.len;
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}
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METHOD(crypter_t, set_key, bool,
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private_botan_crypter_t *this, chunk_t key)
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{
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memcpy(this->key.ptr, key.ptr, min(key.len, this->key.len));
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return TRUE;
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}
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METHOD(crypter_t, destroy, void,
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private_botan_crypter_t *this)
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{
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chunk_clear(&this->key);
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free(this);
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}
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/*
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* Described in header
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*/
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botan_crypter_t *botan_crypter_create(encryption_algorithm_t algo,
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size_t key_size)
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{
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private_botan_crypter_t *this;
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INIT(this,
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.public = {
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.crypter = {
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.encrypt = _encrypt,
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.decrypt = _decrypt,
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.get_block_size = _get_block_size,
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.get_iv_size = _get_iv_size,
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.get_key_size = _get_key_size,
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.set_key = _set_key,
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.destroy = _destroy,
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},
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},
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);
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switch (algo)
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{
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case ENCR_AES_CBC:
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switch (key_size)
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{
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case 16:
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/* AES 128 */
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this->cipher_name = "AES-128/CBC/NoPadding";
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break;
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case 24:
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/* AES-192 */
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this->cipher_name = "AES-192/CBC/NoPadding";
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break;
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case 32:
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/* AES-256 */
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this->cipher_name = "AES-256/CBC/NoPadding";
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break;
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default:
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free(this);
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return NULL;
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}
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break;
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default:
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{
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free(this);
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return NULL;
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}
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}
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this->key = chunk_alloc(key_size);
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return &this->public;
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}
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@ -0,0 +1,58 @@
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/*
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* Copyright (C) 2018 René Korthaus
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* Copyright (C) 2018 Konstantinos Kolelis
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* Rohde & Schwarz Cybersecurity GmbH
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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/**
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* @defgroup botan_crypter botan_crypter
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* @{ @ingroup botan_p
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*/
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#ifndef BOTAN_CRYPTER_H_
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#define BOTAN_CRYPTER_H_
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typedef struct botan_crypter_t botan_crypter_t;
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#include <crypto/crypters/crypter.h>
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/**
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* Implementation of crypters using Botan.
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*/
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struct botan_crypter_t {
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/**
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* Implements crypter_t interface.
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*/
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crypter_t crypter;
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};
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/**
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* Constructor to create botan_crypter_t.
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*
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* @param algo algorithm to implement
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* @param key_size key size in bytes
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* @return botan_crypter_t, NULL if not supported
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*/
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botan_crypter_t *botan_crypter_create(encryption_algorithm_t algo,
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size_t key_size);
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#endif /** BOTAN_CRYPTER_H_ @}*/
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@ -0,0 +1,261 @@
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/*
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* Copyright (C) 2018 René Korthaus
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* Copyright (C) 2018 Konstantinos Kolelis
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* Rohde & Schwarz Cybersecurity GmbH
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
|
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
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* copies of the Software, and to permit persons to whom the Software is
|
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* furnished to do so, subject to the following conditions:
|
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*
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* The above copyright notice and this permission notice shall be included in
|
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* all copies or substantial portions of the Software.
|
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include "botan_diffie_hellman.h"
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#include <botan/build.h>
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#ifdef BOTAN_HAS_DIFFIE_HELLMAN
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#include "botan_util.h"
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#include <botan/ffi.h>
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#include <utils/debug.h>
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typedef struct private_botan_diffie_hellman_t private_botan_diffie_hellman_t;
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/**
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* Private data of an botan_diffie_hellman_t object.
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*/
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struct private_botan_diffie_hellman_t {
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/**
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* Public botan_diffie_hellman_t interface
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*/
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botan_diffie_hellman_t public;
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/**
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* Diffie Hellman group number
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*/
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diffie_hellman_group_t group;
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/**
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* Private key
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*/
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botan_privkey_t dh_key;
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/**
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* Diffie hellman shared secret
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*/
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chunk_t shared_secret;
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/**
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* Generator value
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*/
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botan_mp_t g;
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/**
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* Modulus
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*/
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botan_mp_t p;
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};
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bool load_private_key(private_botan_diffie_hellman_t *this, chunk_t value)
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{
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botan_mp_t xa;
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if (chunk_to_botan_mp(value, &xa))
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{
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return FALSE;
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}
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if (botan_privkey_destroy(this->dh_key) ||
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botan_privkey_load_dh (&this->dh_key, this->p, this->g, xa))
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{
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return FALSE;
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}
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return TRUE;
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}
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METHOD(diffie_hellman_t, set_other_public_value, bool,
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private_botan_diffie_hellman_t *this, chunk_t value)
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{
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botan_pk_op_ka_t op;
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if (!diffie_hellman_verify_value(this->group, value))
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{
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return FALSE;
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}
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chunk_clear(&this->shared_secret);
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botan_pk_op_key_agreement_create(&op, this->dh_key, "Raw", 0);
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/* get shared secret key size */
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if (botan_pk_op_key_agreement(op, NULL, &this->shared_secret.len, value.ptr,
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value.len, NULL, 0)
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!= BOTAN_FFI_ERROR_INSUFFICIENT_BUFFER_SPACE)
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{
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return FALSE;
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}
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this->shared_secret = chunk_alloc(this->shared_secret.len);
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if (botan_pk_op_key_agreement(op, this->shared_secret.ptr,
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&this->shared_secret.len, value.ptr,
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value.len, NULL, 0))
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{
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return FALSE;
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}
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||||
|
||||
return TRUE;
|
||||
}
|
||||
|
||||
METHOD(diffie_hellman_t, get_my_public_value, bool,
|
||||
private_botan_diffie_hellman_t *this, chunk_t *value)
|
||||
{
|
||||
*value = chunk_empty;
|
||||
|
||||
/* get key size of public key first */
|
||||
if (botan_pk_op_key_agreement_export_public(this->dh_key, NULL, &value->len)
|
||||
!= BOTAN_FFI_ERROR_INSUFFICIENT_BUFFER_SPACE)
|
||||
{
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
*value = chunk_alloc(value->len);
|
||||
if (botan_pk_op_key_agreement_export_public(this->dh_key, value->ptr,
|
||||
&value->len))
|
||||
{
|
||||
chunk_clear(value);
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
return TRUE;
|
||||
}
|
||||
|
||||
METHOD(diffie_hellman_t, set_private_value, bool,
|
||||
private_botan_diffie_hellman_t *this, chunk_t value)
|
||||
{
|
||||
return load_private_key(this, value);
|
||||
}
|
||||
|
||||
METHOD(diffie_hellman_t, get_shared_secret, bool,
|
||||
private_botan_diffie_hellman_t *this, chunk_t *secret)
|
||||
{
|
||||
if (this->shared_secret.len == 0)
|
||||
{
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
*secret = chunk_clone(this->shared_secret);
|
||||
return TRUE;
|
||||
}
|
||||
|
||||
METHOD(diffie_hellman_t, get_dh_group, diffie_hellman_group_t,
|
||||
private_botan_diffie_hellman_t *this)
|
||||
{
|
||||
return this->group;
|
||||
}
|
||||
|
||||
METHOD(diffie_hellman_t, destroy, void,
|
||||
private_botan_diffie_hellman_t *this)
|
||||
{
|
||||
botan_mp_destroy(this->p);
|
||||
botan_mp_destroy(this->g);
|
||||
botan_privkey_destroy(this->dh_key);
|
||||
chunk_clear(&this->shared_secret);
|
||||
free(this);
|
||||
}
|
||||
|
||||
/*
|
||||
* Generic internal constructor
|
||||
*/
|
||||
botan_diffie_hellman_t *create_generic(diffie_hellman_group_t group,
|
||||
chunk_t g, chunk_t p)
|
||||
{
|
||||
private_botan_diffie_hellman_t *this;
|
||||
|
||||
INIT(this,
|
||||
.public = {
|
||||
.dh = {
|
||||
.get_shared_secret = _get_shared_secret,
|
||||
.set_other_public_value = _set_other_public_value,
|
||||
.get_my_public_value = _get_my_public_value,
|
||||
.set_private_value = _set_private_value,
|
||||
.get_dh_group = _get_dh_group,
|
||||
.destroy = _destroy,
|
||||
},
|
||||
},
|
||||
.group = group,
|
||||
);
|
||||
|
||||
if (chunk_to_botan_mp(p, &this->p))
|
||||
{
|
||||
destroy(this);
|
||||
return NULL;
|
||||
}
|
||||
|
||||
if (chunk_to_botan_mp(g, &this->g))
|
||||
{
|
||||
destroy(this);
|
||||
return NULL;
|
||||
}
|
||||
|
||||
chunk_t random;
|
||||
rng_t *rng;
|
||||
rng = lib->crypto->create_rng(lib->crypto, RNG_STRONG);
|
||||
if (rng && rng->allocate_bytes(rng, p.len, &random))
|
||||
{
|
||||
rng->destroy(rng);
|
||||
if (!load_private_key(this, random))
|
||||
{
|
||||
destroy(this);
|
||||
chunk_clear(&random);
|
||||
return NULL;
|
||||
}
|
||||
}
|
||||
|
||||
return &this->public;
|
||||
}
|
||||
|
||||
/*
|
||||
* Described in header.
|
||||
*/
|
||||
botan_diffie_hellman_t *
|
||||
botan_diffie_hellman_create(diffie_hellman_group_t group)
|
||||
{
|
||||
diffie_hellman_params_t *params;
|
||||
params = diffie_hellman_get_params(group);
|
||||
if (!params)
|
||||
{
|
||||
return NULL;
|
||||
}
|
||||
return create_generic(group, params->generator, params->prime);
|
||||
}
|
||||
|
||||
/*
|
||||
* Described in header.
|
||||
*/
|
||||
botan_diffie_hellman_t *
|
||||
botan_diffie_hellman_create_custom(diffie_hellman_group_t group, chunk_t g,
|
||||
chunk_t p)
|
||||
{
|
||||
if (group == MODP_CUSTOM)
|
||||
{
|
||||
return create_generic(group, g, p);
|
||||
}
|
||||
return NULL;
|
||||
}
|
||||
|
||||
#endif
|
||||
|
|
@ -0,0 +1,72 @@
|
|||
/*
|
||||
* Copyright (C) 2018 René Korthaus
|
||||
* Copyright (C) 2018 Konstantinos Kolelis
|
||||
* Rohde & Schwarz Cybersecurity GmbH
|
||||
*
|
||||
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
||||
* of this software and associated documentation files (the "Software"), to deal
|
||||
* in the Software without restriction, including without limitation the rights
|
||||
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
||||
* copies of the Software, and to permit persons to whom the Software is
|
||||
* furnished to do so, subject to the following conditions:
|
||||
*
|
||||
* The above copyright notice and this permission notice shall be included in
|
||||
* all copies or substantial portions of the Software.
|
||||
*
|
||||
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||||
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
||||
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||||
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
||||
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
||||
* THE SOFTWARE.
|
||||
*/
|
||||
|
||||
/**
|
||||
* @defgroup botan_diffie_hellman botan_diffie_hellman
|
||||
* @{ @ingroup botan_p
|
||||
*/
|
||||
|
||||
#ifndef BOTAN_DIFFIE_HELLMAN_H_
|
||||
#define BOTAN_DIFFIE_HELLMAN_H_
|
||||
|
||||
typedef struct botan_diffie_hellman_t botan_diffie_hellman_t;
|
||||
|
||||
#include <crypto/diffie_hellman.h>
|
||||
|
||||
/**
|
||||
* Implementation of the Diffie-Hellman algorithm using Botan.
|
||||
*/
|
||||
struct botan_diffie_hellman_t {
|
||||
|
||||
/**
|
||||
* Implements diffie_hellman_t interface.
|
||||
*/
|
||||
diffie_hellman_t dh;
|
||||
};
|
||||
|
||||
/**
|
||||
* Creates a new botan_diffie_hellman_t object.
|
||||
*
|
||||
* @param group Diffie Hellman group number to use
|
||||
* @return botan_diffie_hellman_t object,
|
||||
* NULL if not supported
|
||||
*/
|
||||
botan_diffie_hellman_t *
|
||||
botan_diffie_hellman_create(diffie_hellman_group_t group);
|
||||
|
||||
/**
|
||||
* Creates a new botan_diffie_hellman_t object for MODP_CUSTOM.
|
||||
*
|
||||
* @param group MODP_CUSTOM
|
||||
* @param g generator
|
||||
* @param p prime
|
||||
* @return botan_diffie_hellman_t object,
|
||||
* NULL if not supported
|
||||
*/
|
||||
botan_diffie_hellman_t *
|
||||
botan_diffie_hellman_create_custom(diffie_hellman_group_t group, chunk_t g,
|
||||
chunk_t p);
|
||||
|
||||
#endif /** BOTAN_DIFFIE_HELLMAN_H_ @}*/
|
||||
|
||||
|
|
@ -0,0 +1,248 @@
|
|||
/*
|
||||
* Copyright (C) 2018 René Korthaus
|
||||
* Rohde & Schwarz Cybersecurity GmbH
|
||||
*
|
||||
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
||||
* of this software and associated documentation files (the "Software"), to deal
|
||||
* in the Software without restriction, including without limitation the rights
|
||||
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
||||
* copies of the Software, and to permit persons to whom the Software is
|
||||
* furnished to do so, subject to the following conditions:
|
||||
*
|
||||
* The above copyright notice and this permission notice shall be included in
|
||||
* all copies or substantial portions of the Software.
|
||||
*
|
||||
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||||
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
||||
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||||
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
||||
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
||||
* THE SOFTWARE.
|
||||
*/
|
||||
|
||||
#include "botan_ec_diffie_hellman.h"
|
||||
|
||||
#include <botan/build.h>
|
||||
|
||||
#ifdef BOTAN_HAS_ECDH
|
||||
|
||||
#include <utils/debug.h>
|
||||
|
||||
#include <botan/ffi.h>
|
||||
|
||||
typedef struct private_botan_ec_diffie_hellman_t
|
||||
private_botan_ec_diffie_hellman_t;
|
||||
|
||||
/**
|
||||
* Private data of a botan_ec_diffie_hellman_t object.
|
||||
*/
|
||||
struct private_botan_ec_diffie_hellman_t {
|
||||
/**
|
||||
* Public botan_ec_diffie_hellman_t interface
|
||||
*/
|
||||
botan_ec_diffie_hellman_t public;
|
||||
|
||||
/**
|
||||
* Diffie Hellman group
|
||||
*/
|
||||
diffie_hellman_group_t group;
|
||||
|
||||
/**
|
||||
* EC curve name
|
||||
*/
|
||||
const char* curve_name;
|
||||
|
||||
/**
|
||||
* EC private key
|
||||
*/
|
||||
botan_privkey_t key;
|
||||
|
||||
/**
|
||||
* Shared secret
|
||||
*/
|
||||
chunk_t shared_secret;
|
||||
|
||||
/**
|
||||
* True if shared secret is computed
|
||||
*/
|
||||
bool computed;
|
||||
};
|
||||
|
||||
METHOD(diffie_hellman_t, set_other_public_value, bool,
|
||||
private_botan_ec_diffie_hellman_t *this, chunk_t value)
|
||||
{
|
||||
if (!diffie_hellman_verify_value(this->group, value))
|
||||
{
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
botan_pk_op_ka_t ka;
|
||||
if (botan_pk_op_key_agreement_create(&ka, this->key, "Raw", 0))
|
||||
{
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
/* prepend 0x04 to indicate uncompressed point format */
|
||||
uint8_t indic = 0x04;
|
||||
value = chunk_cata("cc", chunk_from_thing(indic), value);
|
||||
size_t out_len = 0;
|
||||
if (botan_pk_op_key_agreement(ka, NULL, &out_len, value.ptr, value.len,
|
||||
NULL, 0)
|
||||
!= BOTAN_FFI_ERROR_INSUFFICIENT_BUFFER_SPACE)
|
||||
{
|
||||
botan_pk_op_key_agreement_destroy(ka);
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
if (out_len == 0)
|
||||
{
|
||||
botan_pk_op_key_agreement_destroy(ka);
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
chunk_clear(&this->shared_secret);
|
||||
this->shared_secret = chunk_alloc(out_len);
|
||||
if (botan_pk_op_key_agreement(ka, this->shared_secret.ptr,
|
||||
&this->shared_secret.len, value.ptr,
|
||||
value.len, NULL, 0))
|
||||
{
|
||||
chunk_clear(&this->shared_secret);
|
||||
botan_pk_op_key_agreement_destroy(ka);
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
botan_pk_op_key_agreement_destroy(ka);
|
||||
this->computed = TRUE;
|
||||
return TRUE;
|
||||
}
|
||||
|
||||
METHOD(diffie_hellman_t, get_my_public_value, bool,
|
||||
private_botan_ec_diffie_hellman_t *this, chunk_t *value)
|
||||
{
|
||||
chunk_t pkey = chunk_empty;
|
||||
if (botan_pk_op_key_agreement_export_public(this->key, NULL, &pkey.len)
|
||||
!= BOTAN_FFI_ERROR_INSUFFICIENT_BUFFER_SPACE)
|
||||
{
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
pkey = chunk_alloca(pkey.len);
|
||||
if (botan_pk_op_key_agreement_export_public(this->key, pkey.ptr, &pkey.len))
|
||||
{
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
/* skip 0x04 byte prepended by botan */
|
||||
*value = chunk_clone(chunk_skip(pkey, 1));
|
||||
return TRUE;
|
||||
}
|
||||
|
||||
METHOD(diffie_hellman_t, set_private_value, bool,
|
||||
private_botan_ec_diffie_hellman_t *this, chunk_t value)
|
||||
{
|
||||
botan_mp_t scalar;
|
||||
if (botan_mp_init(&scalar))
|
||||
{
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
if (botan_mp_from_bin(scalar, value.ptr, value.len))
|
||||
{
|
||||
botan_mp_destroy(scalar);
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
if (botan_privkey_destroy(this->key))
|
||||
{
|
||||
botan_mp_destroy(scalar);
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
if (botan_privkey_load_ecdh(&this->key, scalar, this->curve_name))
|
||||
{
|
||||
botan_mp_destroy(scalar);
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
botan_mp_destroy(scalar);
|
||||
this->computed = FALSE;
|
||||
return TRUE;
|
||||
}
|
||||
|
||||
METHOD(diffie_hellman_t, get_shared_secret, bool,
|
||||
private_botan_ec_diffie_hellman_t *this, chunk_t *secret)
|
||||
{
|
||||
if (!this->computed)
|
||||
{
|
||||
return FALSE;
|
||||
}
|
||||
*secret = chunk_clone(this->shared_secret);
|
||||
return TRUE;
|
||||
}
|
||||
|
||||
METHOD(diffie_hellman_t, get_dh_group, diffie_hellman_group_t,
|
||||
private_botan_ec_diffie_hellman_t *this)
|
||||
{
|
||||
return this->group;
|
||||
}
|
||||
|
||||
METHOD(diffie_hellman_t, destroy, void,
|
||||
private_botan_ec_diffie_hellman_t *this)
|
||||
{
|
||||
botan_privkey_destroy(this->key);
|
||||
chunk_clear(&this->shared_secret);
|
||||
free(this);
|
||||
}
|
||||
|
||||
/*
|
||||
* Described in header.
|
||||
*/
|
||||
botan_ec_diffie_hellman_t *
|
||||
botan_ec_diffie_hellman_create(diffie_hellman_group_t group)
|
||||
{
|
||||
private_botan_ec_diffie_hellman_t *this;
|
||||
|
||||
INIT(this,
|
||||
.public = {
|
||||
.dh = {
|
||||
.get_shared_secret = _get_shared_secret,
|
||||
.set_other_public_value = _set_other_public_value,
|
||||
.get_my_public_value = _get_my_public_value,
|
||||
.set_private_value = _set_private_value,
|
||||
.get_dh_group = _get_dh_group,
|
||||
.destroy = _destroy,
|
||||
},
|
||||
},
|
||||
.group = group,
|
||||
);
|
||||
|
||||
switch (group)
|
||||
{
|
||||
case ECP_256_BIT:
|
||||
this->curve_name = "secp256r1";
|
||||
break;
|
||||
case ECP_384_BIT:
|
||||
this->curve_name = "secp384r1";
|
||||
break;
|
||||
case ECP_521_BIT:
|
||||
this->curve_name = "secp521r1";
|
||||
break;
|
||||
case ECP_256_BP:
|
||||
this->curve_name = "brainpool256r1";
|
||||
break;
|
||||
case ECP_384_BP:
|
||||
this->curve_name = "brainpool384r1";
|
||||
break;
|
||||
case ECP_512_BP:
|
||||
this->curve_name = "brainpool512r1";
|
||||
break;
|
||||
default:
|
||||
free(this);
|
||||
return NULL;
|
||||
}
|
||||
|
||||
return &this->public;
|
||||
}
|
||||
|
||||
#endif
|
||||
|
|
@ -0,0 +1,57 @@
|
|||
/*
|
||||
* Copyright (C) 2018 René Korthaus
|
||||
* Rohde & Schwarz Cybersecurity GmbH
|
||||
*
|
||||
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
||||
* of this software and associated documentation files (the "Software"), to deal
|
||||
* in the Software without restriction, including without limitation the rights
|
||||
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
||||
* copies of the Software, and to permit persons to whom the Software is
|
||||
* furnished to do so, subject to the following conditions:
|
||||
*
|
||||
* The above copyright notice and this permission notice shall be included in
|
||||
* all copies or substantial portions of the Software.
|
||||
*
|
||||
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||||
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
||||
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||||
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
||||
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
||||
* THE SOFTWARE.
|
||||
*/
|
||||
|
||||
/**
|
||||
* @defgroup botan_ec_diffie_hellman botan_ec_diffie_hellman
|
||||
* @{ @ingroup botan_p
|
||||
*/
|
||||
|
||||
#ifndef BOTAN_EC_DIFFIE_HELLMAN_H_
|
||||
#define BOTAN_EC_DIFFIE_HELLMAN_H_
|
||||
|
||||
typedef struct botan_ec_diffie_hellman_t botan_ec_diffie_hellman_t;
|
||||
|
||||
#include <library.h>
|
||||
|
||||
/**
|
||||
* Implementation of the EC Diffie-Hellman algorithm using Botan.
|
||||
*/
|
||||
struct botan_ec_diffie_hellman_t {
|
||||
|
||||
/**
|
||||
* Implements diffie_hellman_t interface.
|
||||
*/
|
||||
diffie_hellman_t dh;
|
||||
};
|
||||
|
||||
/**
|
||||
* Creates a new botan_ec_diffie_hellman_t object.
|
||||
*
|
||||
* @param group EC Diffie Hellman group number to use
|
||||
* @return botan_ec_diffie_hellman_t object, NULL if not supported
|
||||
*/
|
||||
botan_ec_diffie_hellman_t *
|
||||
botan_ec_diffie_hellman_create(diffie_hellman_group_t group);
|
||||
|
||||
#endif /** BOTAN_EC_DIFFIE_HELLMAN_H_ @}*/
|
||||
|
||||
|
|
@ -0,0 +1,581 @@
|
|||
/*
|
||||
* Copyright (C) 2018 René Korthaus
|
||||
* Copyright (C) 2018 Konstantinos Kolelis
|
||||
* Rohde & Schwarz Cybersecurity GmbH
|
||||
*
|
||||
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
||||
* of this software and associated documentation files (the "Software"), to deal
|
||||
* in the Software without restriction, including without limitation the rights
|
||||
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
||||
* copies of the Software, and to permit persons to whom the Software is
|
||||
* furnished to do so, subject to the following conditions:
|
||||
*
|
||||
* The above copyright notice and this permission notice shall be included in
|
||||
* all copies or substantial portions of the Software.
|
||||
*
|
||||
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||||
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
||||
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||||
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
||||
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
||||
* THE SOFTWARE.
|
||||
*/
|
||||
|
||||
|
||||
#include "botan_ec_private_key.h"
|
||||
|
||||
#include <botan/build.h>
|
||||
|
||||
#ifdef BOTAN_HAS_ECDSA
|
||||
|
||||
#include <asn1/asn1.h>
|
||||
#include <asn1/oid.h>
|
||||
#include <asn1/asn1_parser.h>
|
||||
|
||||
#include <utils/debug.h>
|
||||
|
||||
#include <botan/ffi.h>
|
||||
|
||||
typedef struct private_botan_ec_private_key_t private_botan_ec_private_key_t;
|
||||
|
||||
/**
|
||||
* Private data of a botan_ec_private_key_t object.
|
||||
*/
|
||||
struct private_botan_ec_private_key_t {
|
||||
/**
|
||||
* Public interface for this signer.
|
||||
*/
|
||||
botan_ec_private_key_t public;
|
||||
|
||||
/**
|
||||
* Botan ec private key
|
||||
*/
|
||||
botan_privkey_t key;
|
||||
|
||||
/**
|
||||
* Reference count
|
||||
*/
|
||||
refcount_t ref;
|
||||
};
|
||||
|
||||
#define SIG_FORMAT_IEEE_1363 0
|
||||
#define SIG_FORMAT_DER_SEQUENCE 1
|
||||
|
||||
/* implemented in ec public key */
|
||||
bool botan_ec_fingerprint(botan_pubkey_t *ec, cred_encoding_type_t type,
|
||||
chunk_t *fp);
|
||||
|
||||
/**
|
||||
* Build a DER encoded signature as in RFC 3279 or as in RFC 4754
|
||||
*/
|
||||
static bool build_signature(botan_privkey_t key, const char *hash_and_padding,
|
||||
int signature_format, chunk_t data,
|
||||
chunk_t *signature)
|
||||
{
|
||||
if (!hash_and_padding || !signature)
|
||||
{
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
botan_pk_op_sign_t sign_op;
|
||||
|
||||
if (botan_pk_op_sign_create(&sign_op, key, hash_and_padding, 0))
|
||||
{
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
botan_rng_t rng;
|
||||
if (botan_rng_init(&rng, "user"))
|
||||
{
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
/* get size of signature first */
|
||||
if (botan_pk_op_sign_update(sign_op, data.ptr, data.len))
|
||||
{
|
||||
botan_rng_destroy(rng);
|
||||
botan_pk_op_sign_destroy(sign_op);
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
signature->len = 0;
|
||||
if (botan_pk_op_sign_finish(sign_op, rng, NULL, &signature->len)
|
||||
!= BOTAN_FFI_ERROR_INSUFFICIENT_BUFFER_SPACE)
|
||||
{
|
||||
botan_rng_destroy(rng);
|
||||
botan_pk_op_sign_destroy(sign_op);
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
/* now get the signature */
|
||||
*signature = chunk_alloc(signature->len);
|
||||
if (botan_pk_op_sign_update(sign_op, data.ptr, data.len))
|
||||
{
|
||||
botan_rng_destroy(rng);
|
||||
botan_pk_op_sign_destroy(sign_op);
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
if (botan_pk_op_sign_finish(sign_op, rng, signature->ptr, &signature->len))
|
||||
{
|
||||
botan_rng_destroy(rng);
|
||||
botan_pk_op_sign_destroy(sign_op);
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
botan_rng_destroy(rng);
|
||||
botan_pk_op_sign_destroy(sign_op);
|
||||
|
||||
if (signature_format == SIG_FORMAT_DER_SEQUENCE)
|
||||
{
|
||||
/* format as ASN.1 sequence of two integers r,s */
|
||||
chunk_t r, s = chunk_empty;
|
||||
chunk_split(*signature, "aa", signature->len / 2, &r,
|
||||
signature->len / 2, &s);
|
||||
|
||||
chunk_free(signature);
|
||||
*signature = asn1_wrap(ASN1_SEQUENCE, "mm", asn1_integer("c", r),
|
||||
asn1_integer("c", s));
|
||||
}
|
||||
|
||||
return TRUE;
|
||||
}
|
||||
|
||||
METHOD(private_key_t, sign, bool,
|
||||
private_botan_ec_private_key_t *this, signature_scheme_t scheme,
|
||||
void *params, chunk_t data, chunk_t *signature)
|
||||
{
|
||||
switch (scheme)
|
||||
{
|
||||
case SIGN_ECDSA_WITH_NULL:
|
||||
/* r||s -> Botan::IEEE_1363, data is the hash already */
|
||||
return build_signature(this->key, "Raw",
|
||||
SIG_FORMAT_IEEE_1363, data, signature);
|
||||
case SIGN_ECDSA_WITH_SHA1_DER:
|
||||
/* DER SEQUENCE of two INTEGERS r,s -> Botan::DER_SEQUENCE */
|
||||
return build_signature(this->key, "EMSA1(SHA-1)",
|
||||
SIG_FORMAT_DER_SEQUENCE, data, signature);
|
||||
case SIGN_ECDSA_WITH_SHA256_DER:
|
||||
return build_signature(this->key, "EMSA1(SHA-256)",
|
||||
SIG_FORMAT_DER_SEQUENCE, data, signature);
|
||||
case SIGN_ECDSA_WITH_SHA384_DER:
|
||||
return build_signature(this->key, "EMSA1(SHA-384)",
|
||||
SIG_FORMAT_DER_SEQUENCE, data, signature);
|
||||
case SIGN_ECDSA_WITH_SHA512_DER:
|
||||
return build_signature(this->key, "EMSA1(SHA-512)",
|
||||
SIG_FORMAT_DER_SEQUENCE, data, signature);
|
||||
case SIGN_ECDSA_256:
|
||||
/* r||s -> Botan::IEEE_1363 */
|
||||
return build_signature(this->key, "EMSA1(SHA-256)",
|
||||
SIG_FORMAT_IEEE_1363, data, signature);
|
||||
case SIGN_ECDSA_384:
|
||||
/* r||s -> Botan::IEEE_1363 */
|
||||
return build_signature(this->key, "EMSA1(SHA-384)",
|
||||
SIG_FORMAT_IEEE_1363, data, signature);
|
||||
case SIGN_ECDSA_521:
|
||||
/* r||s -> Botan::IEEE_1363 */
|
||||
return build_signature(this->key, "EMSA1(SHA-512)",
|
||||
SIG_FORMAT_IEEE_1363, data, signature);
|
||||
default:
|
||||
DBG1(DBG_LIB, "signature scheme %N not supported via botan",
|
||||
signature_scheme_names, scheme);
|
||||
return FALSE;
|
||||
}
|
||||
}
|
||||
|
||||
METHOD(private_key_t, decrypt, bool,
|
||||
private_botan_ec_private_key_t *this, encryption_scheme_t scheme,
|
||||
chunk_t crypto, chunk_t *plain)
|
||||
{
|
||||
DBG1(DBG_LIB, "EC private key decryption not implemented");
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
METHOD(private_key_t, get_keysize, int,
|
||||
private_botan_ec_private_key_t *this)
|
||||
{
|
||||
botan_mp_t p;
|
||||
if(botan_mp_init(&p))
|
||||
{
|
||||
return 0;
|
||||
}
|
||||
|
||||
if(botan_privkey_get_field(p, this->key, "p"))
|
||||
{
|
||||
botan_mp_destroy(p);
|
||||
return 0;
|
||||
}
|
||||
|
||||
size_t bits = 0;
|
||||
if(botan_mp_num_bits(p, &bits))
|
||||
{
|
||||
botan_mp_destroy(p);
|
||||
return 0;
|
||||
}
|
||||
|
||||
botan_mp_destroy(p);
|
||||
return bits;
|
||||
}
|
||||
|
||||
METHOD(private_key_t, get_type, key_type_t,
|
||||
private_botan_ec_private_key_t *this)
|
||||
{
|
||||
return KEY_ECDSA;
|
||||
}
|
||||
|
||||
METHOD(private_key_t, get_public_key, public_key_t*,
|
||||
private_botan_ec_private_key_t *this)
|
||||
{
|
||||
public_key_t *public;
|
||||
chunk_t key = chunk_empty;
|
||||
|
||||
botan_pubkey_t pubkey;
|
||||
if (botan_privkey_export_pubkey(&pubkey, this->key))
|
||||
{
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
if (botan_pubkey_export(pubkey, NULL, &key.len,
|
||||
BOTAN_PRIVKEY_EXPORT_FLAG_DER)
|
||||
!= BOTAN_FFI_ERROR_INSUFFICIENT_BUFFER_SPACE)
|
||||
{
|
||||
botan_pubkey_destroy(pubkey);
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
key = chunk_alloc(key.len);
|
||||
|
||||
if (botan_pubkey_export(pubkey, key.ptr, &key.len,
|
||||
BOTAN_PRIVKEY_EXPORT_FLAG_DER))
|
||||
{
|
||||
chunk_free(&key);
|
||||
botan_pubkey_destroy(pubkey);
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
public = lib->creds->create(lib->creds, CRED_PUBLIC_KEY, KEY_ECDSA,
|
||||
BUILD_BLOB_ASN1_DER, key, BUILD_END);
|
||||
|
||||
chunk_free(&key);
|
||||
botan_pubkey_destroy(pubkey);
|
||||
return public;
|
||||
}
|
||||
|
||||
METHOD(private_key_t, get_fingerprint, bool,
|
||||
private_botan_ec_private_key_t *this, cred_encoding_type_t type,
|
||||
chunk_t *fingerprint)
|
||||
{
|
||||
bool success = FALSE;
|
||||
|
||||
botan_pubkey_t pubkey;
|
||||
if (botan_privkey_export_pubkey(&pubkey, this->key))
|
||||
{
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
success = botan_ec_fingerprint(&pubkey, type, fingerprint);
|
||||
botan_pubkey_destroy(pubkey);
|
||||
return success;
|
||||
}
|
||||
|
||||
METHOD(private_key_t, get_encoding, bool,
|
||||
private_botan_ec_private_key_t *this, cred_encoding_type_t type,
|
||||
chunk_t *encoding)
|
||||
{
|
||||
switch (type)
|
||||
{
|
||||
case PRIVKEY_ASN1_DER:
|
||||
case PRIVKEY_PEM:
|
||||
{
|
||||
bool success = TRUE;
|
||||
|
||||
botan_mp_t x;
|
||||
if (botan_mp_init(&x))
|
||||
{
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
if (botan_privkey_get_field(x, this->key, "x"))
|
||||
{
|
||||
botan_mp_destroy(x);
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
chunk_t pval = chunk_empty;
|
||||
if (botan_mp_num_bytes(x, &pval.len))
|
||||
{
|
||||
botan_mp_destroy(x);
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
pval = chunk_alloc(pval.len);
|
||||
|
||||
if (botan_mp_to_bin(x, pval.ptr))
|
||||
{
|
||||
botan_mp_destroy(x);
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
chunk_t version = chunk_from_chars( 0x01 );
|
||||
*encoding =
|
||||
asn1_wrap(ASN1_SEQUENCE, "ms", asn1_integer("c", version),
|
||||
asn1_wrap(ASN1_OCTET_STRING, "s", pval));
|
||||
|
||||
if (type == PRIVKEY_PEM)
|
||||
{
|
||||
chunk_t asn1_encoding = *encoding;
|
||||
|
||||
success = lib->encoding->encode(lib->encoding, PRIVKEY_PEM,
|
||||
NULL, encoding,
|
||||
CRED_PART_ECDSA_PRIV_ASN1_DER,
|
||||
asn1_encoding, CRED_PART_END);
|
||||
chunk_clear(&asn1_encoding);
|
||||
}
|
||||
|
||||
botan_mp_destroy(x);
|
||||
return success;
|
||||
}
|
||||
default:
|
||||
return FALSE;
|
||||
}
|
||||
}
|
||||
|
||||
METHOD(private_key_t, get_ref, private_key_t*,
|
||||
private_botan_ec_private_key_t *this)
|
||||
{
|
||||
ref_get(&this->ref);
|
||||
return &this->public.key;
|
||||
}
|
||||
|
||||
METHOD(private_key_t, destroy, void,
|
||||
private_botan_ec_private_key_t *this)
|
||||
{
|
||||
if (ref_put(&this->ref))
|
||||
{
|
||||
if (&this->key)
|
||||
{
|
||||
lib->encoding->clear_cache(lib->encoding, &this->key);
|
||||
botan_privkey_destroy(this->key);
|
||||
}
|
||||
free(this);
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Internal generic constructor
|
||||
*/
|
||||
static private_botan_ec_private_key_t *create_empty()
|
||||
{
|
||||
private_botan_ec_private_key_t *this;
|
||||
|
||||
INIT(this,
|
||||
.public = {
|
||||
.key = {
|
||||
.get_type = _get_type,
|
||||
.sign = _sign,
|
||||
.decrypt = _decrypt,
|
||||
.get_keysize = _get_keysize,
|
||||
.get_public_key = _get_public_key,
|
||||
.equals = private_key_equals,
|
||||
.belongs_to = private_key_belongs_to,
|
||||
.get_fingerprint = _get_fingerprint,
|
||||
.has_fingerprint = private_key_has_fingerprint,
|
||||
.get_encoding = _get_encoding,
|
||||
.get_ref = _get_ref,
|
||||
.destroy = _destroy,
|
||||
},
|
||||
},
|
||||
.ref = 1,
|
||||
);
|
||||
|
||||
return this;
|
||||
}
|
||||
|
||||
/*
|
||||
* See header.
|
||||
*/
|
||||
botan_ec_private_key_t *botan_ec_private_key_gen(key_type_t type, va_list args)
|
||||
{
|
||||
private_botan_ec_private_key_t *this;
|
||||
u_int key_size = 0;
|
||||
const char* curve;
|
||||
|
||||
while (TRUE)
|
||||
{
|
||||
switch (va_arg(args, builder_part_t))
|
||||
{
|
||||
case BUILD_KEY_SIZE:
|
||||
key_size = va_arg(args, u_int);
|
||||
continue;
|
||||
case BUILD_END:
|
||||
break;
|
||||
default:
|
||||
return NULL;
|
||||
}
|
||||
break;
|
||||
}
|
||||
|
||||
if (!key_size)
|
||||
{
|
||||
return NULL;
|
||||
}
|
||||
|
||||
switch (key_size)
|
||||
{
|
||||
case 256:
|
||||
curve = "secp256r1";
|
||||
break;
|
||||
case 384:
|
||||
curve = "secp384r1";
|
||||
break;
|
||||
case 521:
|
||||
curve = "secp521r1";
|
||||
break;
|
||||
default:
|
||||
DBG1(DBG_LIB, "EC private key size %d not supported via botan",
|
||||
key_size);
|
||||
return NULL;
|
||||
}
|
||||
|
||||
botan_rng_t rng;
|
||||
if (botan_rng_init(&rng, "user"))
|
||||
{
|
||||
return NULL;
|
||||
}
|
||||
|
||||
this = create_empty();
|
||||
|
||||
if(botan_privkey_create_ecdsa(&this->key, rng, curve))
|
||||
{
|
||||
DBG1(DBG_LIB, "EC private key generation failed", key_size);
|
||||
botan_rng_destroy(rng);
|
||||
destroy(this);
|
||||
return NULL;
|
||||
}
|
||||
|
||||
botan_rng_destroy(rng);
|
||||
return &this->public;
|
||||
}
|
||||
|
||||
/**
|
||||
* ASN.1 definition of a ECPrivateKey structure (RFC 5915)
|
||||
*/
|
||||
static const asn1Object_t ecPrivateKeyObjects[] = {
|
||||
{ 0, "ECPrivateKey", ASN1_SEQUENCE, ASN1_NONE }, /* 0 */
|
||||
{ 1, "version", ASN1_INTEGER, ASN1_BODY }, /* 1 */
|
||||
{ 1, "privateKey", ASN1_OCTET_STRING, ASN1_BODY }, /* 2 */
|
||||
{ 1, "parameters", ASN1_EOC, ASN1_RAW }, /* 3 */
|
||||
{ 1, "publicKey", ASN1_BIT_STRING, ASN1_OPT }, /* 4 */
|
||||
{ 0, "exit", ASN1_EOC, ASN1_EXIT }
|
||||
};
|
||||
|
||||
#define ECPK_PRIVATE_KEY 2
|
||||
#define ECPK_PRIVATE_KEY_PARAMS 3
|
||||
|
||||
/**
|
||||
* See header.
|
||||
*/
|
||||
botan_ec_private_key_t *botan_ec_private_key_load(key_type_t type, va_list args)
|
||||
{
|
||||
private_botan_ec_private_key_t *this;
|
||||
chunk_t params = chunk_empty, key = chunk_empty;
|
||||
chunk_t object, pkcs8 = chunk_empty;
|
||||
|
||||
while (TRUE)
|
||||
{
|
||||
switch (va_arg(args, builder_part_t))
|
||||
{
|
||||
case BUILD_BLOB_ALGID_PARAMS:
|
||||
params = va_arg(args, chunk_t);
|
||||
continue;
|
||||
case BUILD_BLOB_ASN1_DER:
|
||||
key = va_arg(args, chunk_t);
|
||||
continue;
|
||||
case BUILD_END:
|
||||
break;
|
||||
default:
|
||||
return NULL;
|
||||
}
|
||||
break;
|
||||
}
|
||||
|
||||
this = create_empty();
|
||||
|
||||
/*
|
||||
* botan expects a PKCS#8 private key, so we build one
|
||||
* RFC 5282 mandates ECParameters as part of the algorithmIdentifier
|
||||
*/
|
||||
chunk_t alg_id = chunk_empty;
|
||||
if(params.len != 0)
|
||||
{
|
||||
/* if ECDomainParameters is passed, just append it */
|
||||
alg_id = asn1_wrap(ASN1_SEQUENCE, "mc",
|
||||
asn1_build_known_oid(OID_EC_PUBLICKEY), params);
|
||||
}
|
||||
else
|
||||
{
|
||||
/*
|
||||
* no explicit ECParameters passed, so we extract them from the
|
||||
* ECPrivateKey structure and append it to the algorithmIdentifier
|
||||
*/
|
||||
asn1_parser_t *parser;
|
||||
int objectID;
|
||||
|
||||
parser = asn1_parser_create(ecPrivateKeyObjects, key);
|
||||
parser->set_flags(parser, FALSE, TRUE);
|
||||
|
||||
while (parser->iterate(parser, &objectID, &object))
|
||||
{
|
||||
if (objectID == ECPK_PRIVATE_KEY_PARAMS)
|
||||
{
|
||||
if (!asn1_parse_simple_object(&object, ASN1_CONTEXT_C_0, 0,
|
||||
"parameters"))
|
||||
{
|
||||
parser->destroy(parser);
|
||||
return NULL;
|
||||
}
|
||||
|
||||
if (asn1_unwrap(&object, ¶ms) != ASN1_OID)
|
||||
{
|
||||
parser->destroy(parser);
|
||||
return NULL;
|
||||
}
|
||||
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
parser->destroy(parser);
|
||||
alg_id = asn1_wrap(ASN1_SEQUENCE, "mc",
|
||||
asn1_build_known_oid(OID_EC_PUBLICKEY),
|
||||
asn1_simple_object(ASN1_OID, params));
|
||||
}
|
||||
|
||||
pkcs8 = asn1_wrap(ASN1_SEQUENCE, "cms",
|
||||
asn1_integer("c", chunk_from_chars(0x00)),
|
||||
alg_id,
|
||||
asn1_wrap(ASN1_OCTET_STRING, "c", key));
|
||||
|
||||
botan_rng_t rng;
|
||||
if (botan_rng_init(&rng, "user"))
|
||||
{
|
||||
chunk_clear(&pkcs8);
|
||||
destroy(this);
|
||||
return NULL;
|
||||
}
|
||||
|
||||
if (botan_privkey_load(&this->key, rng, pkcs8.ptr, pkcs8.len, NULL))
|
||||
{
|
||||
chunk_clear(&pkcs8);
|
||||
botan_rng_destroy(rng);
|
||||
destroy(this);
|
||||
return NULL;
|
||||
}
|
||||
|
||||
chunk_clear(&pkcs8);
|
||||
botan_rng_destroy(rng);
|
||||
return &this->public;
|
||||
}
|
||||
|
||||
#endif
|
||||
|
|
@ -0,0 +1,78 @@
|
|||
/*
|
||||
* Copyright (C) 2018 René Korthaus
|
||||
* Copyright (C) 2018 Konstantinos Kolelis
|
||||
* Rohde & Schwarz Cybersecurity GmbH
|
||||
*
|
||||
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
||||
* of this software and associated documentation files (the "Software"), to deal
|
||||
* in the Software without restriction, including without limitation the rights
|
||||
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
||||
* copies of the Software, and to permit persons to whom the Software is
|
||||
* furnished to do so, subject to the following conditions:
|
||||
*
|
||||
* The above copyright notice and this permission notice shall be included in
|
||||
* all copies or substantial portions of the Software.
|
||||
*
|
||||
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||||
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
||||
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||||
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
||||
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
||||
* THE SOFTWARE.
|
||||
*/
|
||||
|
||||
/**
|
||||
* @defgroup botan_ec_private_key botan_ec_private_key
|
||||
* @{ @ingroup botan_p
|
||||
*/
|
||||
|
||||
#ifndef BOTAN_EC_PRIVATE_KEY_H_
|
||||
#define BOTAN_EC_PRIVATE_KEY_H_
|
||||
|
||||
#include <botan/build.h>
|
||||
|
||||
#ifdef BOTAN_HAS_ECDSA
|
||||
|
||||
#include <credentials/builder.h>
|
||||
#include <credentials/keys/private_key.h>
|
||||
|
||||
typedef struct botan_ec_private_key_t botan_ec_private_key_t;
|
||||
|
||||
/**
|
||||
* private_key_t implementation of ECDSA using Botan.
|
||||
*/
|
||||
struct botan_ec_private_key_t {
|
||||
|
||||
/**
|
||||
* Implements private_key_t interface
|
||||
*/
|
||||
private_key_t key;
|
||||
};
|
||||
|
||||
/**
|
||||
* Generate a ECDSA private key using Botan.
|
||||
*
|
||||
* Accepts the BUILD_KEY_SIZE argument.
|
||||
*
|
||||
* @param type type of the key, must be KEY_ECDSA
|
||||
* @param args builder_part_t argument list
|
||||
* @return generated key, NULL on failure
|
||||
*/
|
||||
botan_ec_private_key_t *botan_ec_private_key_gen(key_type_t type, va_list args);
|
||||
|
||||
/**
|
||||
* Load a ECDSA private key using Botan.
|
||||
*
|
||||
* Accepts a BUILD_BLOB_ASN1_DER argument.
|
||||
*
|
||||
* @param type type of the key, must be KEY_ECDSA
|
||||
* @param args builder_part_t argument list
|
||||
* @return loaded key, NULL on failure
|
||||
*/
|
||||
botan_ec_private_key_t *botan_ec_private_key_load(key_type_t type,
|
||||
va_list args);
|
||||
|
||||
#endif
|
||||
|
||||
#endif /** BOTAN_EC_PRIVATE_KEY_H_ @}*/
|
||||
|
|
@ -0,0 +1,462 @@
|
|||
/*
|
||||
* Copyright (C) 2018 René Korthaus
|
||||
* Copyright (C) 2018 Konstantinos Kolelis
|
||||
* Rohde & Schwarz Cybersecurity GmbH
|
||||
*
|
||||
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
||||
* of this software and associated documentation files (the "Software"), to deal
|
||||
* in the Software without restriction, including without limitation the rights
|
||||
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
||||
* copies of the Software, and to permit persons to whom the Software is
|
||||
* furnished to do so, subject to the following conditions:
|
||||
*
|
||||
* The above copyright notice and this permission notice shall be included in
|
||||
* all copies or substantial portions of the Software.
|
||||
*
|
||||
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||||
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
||||
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||||
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
||||
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
||||
* THE SOFTWARE.
|
||||
*/
|
||||
|
||||
#include "botan_ec_public_key.h"
|
||||
|
||||
#include <botan/build.h>
|
||||
|
||||
#ifdef BOTAN_HAS_ECDSA
|
||||
|
||||
#include <asn1/asn1.h>
|
||||
#include <asn1/asn1_parser.h>
|
||||
|
||||
#include <utils/debug.h>
|
||||
|
||||
#include <botan/ffi.h>
|
||||
|
||||
typedef struct private_botan_ec_public_key_t private_botan_ec_public_key_t;
|
||||
|
||||
/**
|
||||
* Private data structure with signing context.
|
||||
*/
|
||||
struct private_botan_ec_public_key_t {
|
||||
/**
|
||||
* Public interface for this signer
|
||||
*/
|
||||
botan_ec_public_key_t public;
|
||||
|
||||
/**
|
||||
* Botan ec public key
|
||||
*/
|
||||
botan_pubkey_t key;
|
||||
|
||||
/**
|
||||
* Reference counter
|
||||
*/
|
||||
refcount_t ref;
|
||||
};
|
||||
|
||||
#define SIG_FORMAT_IEEE_1363 0
|
||||
#define SIG_FORMAT_DER_SEQUENCE 1
|
||||
|
||||
/**
|
||||
* Verification of a DER encoded signature as in RFC 3279 or as in RFC 4754
|
||||
*/
|
||||
static bool verify_signature(private_botan_ec_public_key_t *this,
|
||||
const char* hash_and_padding, int signature_format, size_t keylen,
|
||||
chunk_t data, chunk_t signature)
|
||||
{
|
||||
chunk_t sig;
|
||||
|
||||
if (signature_format == SIG_FORMAT_DER_SEQUENCE)
|
||||
{
|
||||
/*
|
||||
* botan requires a signature in IEEE 1363 format (r||s)
|
||||
* re-encode from ASN.1 sequence of two integers r,s
|
||||
*/
|
||||
chunk_t parse, r, s;
|
||||
parse = signature;
|
||||
|
||||
if (asn1_unwrap(&parse, &parse) != ASN1_SEQUENCE
|
||||
|| asn1_unwrap(&parse, &r) != ASN1_INTEGER
|
||||
|| asn1_unwrap(&parse, &s) != ASN1_INTEGER)
|
||||
{
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
r = chunk_skip_zero(r);
|
||||
s = chunk_skip_zero(s);
|
||||
|
||||
/*
|
||||
* r and s must be of size m_order.bytes()/2 each
|
||||
*/
|
||||
if (r.len > keylen || s.len > keylen)
|
||||
{
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
sig = chunk_alloca(2 * keylen);
|
||||
memset(sig.ptr, 0, sig.len);
|
||||
memcpy(sig.ptr + (keylen - r.len), r.ptr, r.len);
|
||||
memcpy(sig.ptr + keylen + (keylen - s.len), s.ptr, s.len);
|
||||
}
|
||||
else
|
||||
{
|
||||
sig.ptr = signature.ptr;
|
||||
sig.len = signature.len;
|
||||
}
|
||||
|
||||
{
|
||||
botan_pk_op_verify_t verify_op;
|
||||
bool valid = FALSE;
|
||||
|
||||
if (botan_pk_op_verify_create(&verify_op, this->key, hash_and_padding,
|
||||
0))
|
||||
{
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
if (botan_pk_op_verify_update(verify_op, data.ptr, data.len))
|
||||
{
|
||||
botan_pk_op_verify_destroy(verify_op);
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
valid = !(botan_pk_op_verify_finish(verify_op, sig.ptr, sig.len));
|
||||
|
||||
botan_pk_op_verify_destroy(verify_op);
|
||||
|
||||
return valid;
|
||||
}
|
||||
}
|
||||
|
||||
METHOD(public_key_t, get_type, key_type_t,
|
||||
private_botan_ec_public_key_t *this)
|
||||
{
|
||||
return KEY_ECDSA;
|
||||
}
|
||||
|
||||
METHOD(public_key_t, get_keysize, int,
|
||||
private_botan_ec_public_key_t *this)
|
||||
{
|
||||
botan_mp_t p;
|
||||
if(botan_mp_init(&p))
|
||||
{
|
||||
return 0;
|
||||
}
|
||||
|
||||
if(botan_pubkey_get_field(p, this->key, "p"))
|
||||
{
|
||||
botan_mp_destroy(p);
|
||||
return 0;
|
||||
}
|
||||
|
||||
size_t bits = 0;
|
||||
if(botan_mp_num_bits(p, &bits))
|
||||
{
|
||||
botan_mp_destroy(p);
|
||||
return 0;
|
||||
}
|
||||
|
||||
botan_mp_destroy(p);
|
||||
return bits;
|
||||
}
|
||||
|
||||
METHOD(public_key_t, verify, bool,
|
||||
private_botan_ec_public_key_t *this, signature_scheme_t scheme,
|
||||
void *params, chunk_t data, chunk_t signature)
|
||||
{
|
||||
size_t keylen = (get_keysize(this) + 7) / 8;
|
||||
const char *hash_and_padding;
|
||||
int sig_format;
|
||||
|
||||
switch (scheme)
|
||||
{
|
||||
case SIGN_ECDSA_WITH_NULL:
|
||||
/* r||s -> Botan::IEEE_1363, data is the hash already */
|
||||
hash_and_padding = "Raw";
|
||||
sig_format = SIG_FORMAT_IEEE_1363;
|
||||
break;
|
||||
case SIGN_ECDSA_WITH_SHA1_DER:
|
||||
/* DER SEQUENCE of two INTEGERS r,s -> Botan::DER_SEQUENCE */
|
||||
hash_and_padding = "EMSA1(SHA-1)";
|
||||
sig_format = SIG_FORMAT_DER_SEQUENCE;
|
||||
break;
|
||||
case SIGN_ECDSA_WITH_SHA256_DER:
|
||||
hash_and_padding = "EMSA1(SHA-256)";
|
||||
sig_format = SIG_FORMAT_DER_SEQUENCE;
|
||||
break;
|
||||
case SIGN_ECDSA_WITH_SHA384_DER:
|
||||
hash_and_padding = "EMSA1(SHA-384)";
|
||||
sig_format = SIG_FORMAT_DER_SEQUENCE;
|
||||
break;
|
||||
case SIGN_ECDSA_WITH_SHA512_DER:
|
||||
hash_and_padding = "EMSA1(SHA-512)";
|
||||
sig_format = SIG_FORMAT_DER_SEQUENCE;
|
||||
break;
|
||||
case SIGN_ECDSA_256:
|
||||
/* r||s -> Botan::IEEE_1363 */
|
||||
hash_and_padding = "EMSA1(SHA-256)";
|
||||
sig_format = SIG_FORMAT_IEEE_1363;
|
||||
break;
|
||||
case SIGN_ECDSA_384:
|
||||
/* r||s -> Botan::IEEE_1363 */
|
||||
hash_and_padding = "EMSA1(SHA-384)";
|
||||
sig_format = SIG_FORMAT_IEEE_1363;
|
||||
break;
|
||||
case SIGN_ECDSA_521:
|
||||
/* r||s -> Botan::IEEE_1363 */
|
||||
hash_and_padding = "EMSA1(SHA-512)";
|
||||
sig_format = SIG_FORMAT_IEEE_1363;
|
||||
break;
|
||||
default:
|
||||
DBG1(DBG_LIB, "signature scheme %N not supported via botan",
|
||||
signature_scheme_names, scheme);
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
return verify_signature(this, hash_and_padding,
|
||||
sig_format, keylen, data, signature);
|
||||
}
|
||||
|
||||
METHOD(public_key_t, encrypt, bool,
|
||||
private_botan_ec_public_key_t *this, encryption_scheme_t scheme,
|
||||
chunk_t crypto, chunk_t *plain)
|
||||
{
|
||||
DBG1(DBG_LIB, "EC public key encryption not implemented");
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
/**
|
||||
* Calculate fingerprint from a botan_pubkey_t, also used in ec private key.
|
||||
*/
|
||||
bool botan_ec_fingerprint(botan_pubkey_t *ec, cred_encoding_type_t type,
|
||||
chunk_t *fp)
|
||||
{
|
||||
hasher_t *hasher;
|
||||
chunk_t key;
|
||||
|
||||
if (lib->encoding->get_cache(lib->encoding, type, ec, fp))
|
||||
{
|
||||
return TRUE;
|
||||
}
|
||||
|
||||
switch (type)
|
||||
{
|
||||
case KEYID_PUBKEY_SHA1:
|
||||
/* subjectPublicKey -> use botan_pubkey_fingerprint() */
|
||||
{
|
||||
if (botan_pubkey_fingerprint(*ec, "SHA-1", NULL, &fp->len))
|
||||
{
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
*fp = chunk_alloc(fp->len);
|
||||
|
||||
if (botan_pubkey_fingerprint(*ec, "SHA-1", fp->ptr, &fp->len))
|
||||
{
|
||||
chunk_free(fp);
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
break;
|
||||
}
|
||||
case KEYID_PUBKEY_INFO_SHA1:
|
||||
/* subjectPublicKeyInfo -> use botan_pubkey_export(), then hash */
|
||||
{
|
||||
if (botan_pubkey_export(*ec, NULL, &key.len,
|
||||
BOTAN_PRIVKEY_EXPORT_FLAG_DER))
|
||||
{
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
key = chunk_alloc(key.len);
|
||||
|
||||
if (botan_pubkey_export(*ec, key.ptr, &key.len,
|
||||
BOTAN_PRIVKEY_EXPORT_FLAG_DER))
|
||||
{
|
||||
chunk_free(&key);
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
hasher = lib->crypto->create_hasher(lib->crypto, HASH_SHA1);
|
||||
if (!hasher || !hasher->allocate_hash(hasher, key, fp))
|
||||
{
|
||||
DBG1(DBG_LIB, "SHA1 hash algorithm not supported,"
|
||||
" fingerprinting failed");
|
||||
DESTROY_IF(hasher);
|
||||
chunk_free(&key);
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
hasher->destroy(hasher);
|
||||
chunk_free(&key);
|
||||
break;
|
||||
}
|
||||
default:
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
lib->encoding->cache(lib->encoding, type, ec, *fp);
|
||||
return TRUE;
|
||||
}
|
||||
|
||||
METHOD(public_key_t, get_fingerprint, bool,
|
||||
private_botan_ec_public_key_t *this, cred_encoding_type_t type,
|
||||
chunk_t *fingerprint)
|
||||
{
|
||||
return botan_ec_fingerprint(&this->key, type, fingerprint);
|
||||
}
|
||||
|
||||
METHOD(public_key_t, get_encoding, bool,
|
||||
private_botan_ec_public_key_t *this, cred_encoding_type_t type,
|
||||
chunk_t *encoding)
|
||||
{
|
||||
bool success = TRUE;
|
||||
|
||||
if (botan_pubkey_export(this->key, NULL, &encoding->len,
|
||||
BOTAN_PRIVKEY_EXPORT_FLAG_DER))
|
||||
{
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
*encoding = chunk_alloc(encoding->len);
|
||||
|
||||
if (botan_pubkey_export(this->key, encoding->ptr, &encoding->len,
|
||||
BOTAN_PRIVKEY_EXPORT_FLAG_DER))
|
||||
{
|
||||
chunk_free(encoding);
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
if (type != PUBKEY_SPKI_ASN1_DER)
|
||||
{
|
||||
chunk_t asn1_encoding = *encoding;
|
||||
|
||||
success = lib->encoding->encode(lib->encoding, type, NULL, encoding,
|
||||
CRED_PART_ECDSA_PUB_ASN1_DER,
|
||||
asn1_encoding, CRED_PART_END);
|
||||
chunk_free(&asn1_encoding);
|
||||
}
|
||||
|
||||
return success;
|
||||
}
|
||||
|
||||
METHOD(public_key_t, get_ref, public_key_t*,
|
||||
private_botan_ec_public_key_t *this)
|
||||
{
|
||||
ref_get(&this->ref);
|
||||
return &this->public.key;
|
||||
}
|
||||
|
||||
METHOD(public_key_t, destroy, void,
|
||||
private_botan_ec_public_key_t *this)
|
||||
{
|
||||
if (ref_put(&this->ref))
|
||||
{
|
||||
botan_pubkey_destroy(this->key);
|
||||
free(this);
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* See header.
|
||||
*/
|
||||
botan_ec_public_key_t *botan_ec_public_key_load(key_type_t type, va_list args)
|
||||
{
|
||||
private_botan_ec_public_key_t *this;
|
||||
chunk_t blob = chunk_empty;
|
||||
|
||||
if (type != KEY_ECDSA)
|
||||
{
|
||||
return NULL;
|
||||
}
|
||||
|
||||
while (TRUE)
|
||||
{
|
||||
switch (va_arg(args, builder_part_t))
|
||||
{
|
||||
case BUILD_BLOB_ASN1_DER:
|
||||
blob = va_arg(args, chunk_t);
|
||||
continue;
|
||||
case BUILD_END:
|
||||
break;
|
||||
default:
|
||||
return NULL;
|
||||
}
|
||||
break;
|
||||
}
|
||||
|
||||
INIT(this,
|
||||
.public = {
|
||||
.key = {
|
||||
.get_type = _get_type,
|
||||
.verify = _verify,
|
||||
.encrypt = _encrypt,
|
||||
.get_keysize = _get_keysize,
|
||||
.equals = public_key_equals,
|
||||
.get_fingerprint = _get_fingerprint,
|
||||
.has_fingerprint = public_key_has_fingerprint,
|
||||
.get_encoding = _get_encoding,
|
||||
.get_ref = _get_ref,
|
||||
.destroy = _destroy,
|
||||
},
|
||||
},
|
||||
.ref = 1,
|
||||
);
|
||||
|
||||
if (botan_pubkey_load(&this->key, blob.ptr, blob.len))
|
||||
{
|
||||
destroy(this);
|
||||
return NULL;
|
||||
}
|
||||
|
||||
size_t namesize = 0;
|
||||
if (botan_pubkey_algo_name(this->key, NULL, &namesize) !=
|
||||
BOTAN_FFI_ERROR_INSUFFICIENT_BUFFER_SPACE)
|
||||
{
|
||||
botan_pubkey_destroy(this->key);
|
||||
destroy(this);
|
||||
return NULL;
|
||||
}
|
||||
|
||||
char* namebuf = malloc(namesize);
|
||||
if (botan_pubkey_algo_name(this->key, namebuf, &namesize))
|
||||
{
|
||||
free(namebuf);
|
||||
botan_pubkey_destroy(this->key);
|
||||
destroy(this);
|
||||
return NULL;
|
||||
}
|
||||
|
||||
const char* algo_name = "ECDSA";
|
||||
if (!strneq(namebuf, algo_name, sizeof(algo_name)))
|
||||
{
|
||||
free(namebuf);
|
||||
botan_pubkey_destroy(this->key);
|
||||
destroy(this);
|
||||
return NULL;
|
||||
}
|
||||
free(namebuf);
|
||||
|
||||
botan_rng_t rng;
|
||||
if (botan_rng_init(&rng, "user"))
|
||||
{
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
if (botan_pubkey_check_key(this->key, rng, BOTAN_CHECK_KEY_EXPENSIVE_TESTS))
|
||||
{
|
||||
DBG1(DBG_LIB, "public key failed key checks");
|
||||
botan_rng_destroy(rng);
|
||||
botan_pubkey_destroy(this->key);
|
||||
destroy(this);
|
||||
return NULL;
|
||||
}
|
||||
|
||||
botan_rng_destroy(rng);
|
||||
return &this->public;
|
||||
}
|
||||
|
||||
#endif
|
||||
|
|
@ -0,0 +1,55 @@
|
|||
/*
|
||||
* Copyright (C) 2018 René Korthaus
|
||||
* Copyright (C) 2018 Konstantinos Kolelis
|
||||
* Rohde & Schwarz Cybersecurity GmbH
|
||||
*
|
||||
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
||||
* of this software and associated documentation files (the "Software"), to deal
|
||||
* in the Software without restriction, including without limitation the rights
|
||||
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
||||
* copies of the Software, and to permit persons to whom the Software is
|
||||
* furnished to do so, subject to the following conditions:
|
||||
*
|
||||
* The above copyright notice and this permission notice shall be included in
|
||||
* all copies or substantial portions of the Software.
|
||||
*
|
||||
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||||
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
||||
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||||
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
||||
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
||||
* THE SOFTWARE.
|
||||
*/
|
||||
|
||||
#ifndef BOTAN_EC_PUBLIC_KEY_H_
|
||||
#define BOTAN_EC_PUBLIC_KEY_H_
|
||||
|
||||
typedef struct botan_ec_public_key_t botan_ec_public_key_t;
|
||||
|
||||
#include <credentials/builder.h>
|
||||
#include <credentials/keys/public_key.h>
|
||||
|
||||
/**
|
||||
* public_key_t implementation of ECDSA using botan.
|
||||
*/
|
||||
struct botan_ec_public_key_t {
|
||||
|
||||
/**
|
||||
* Implements the public_key_t interface
|
||||
*/
|
||||
public_key_t key;
|
||||
};
|
||||
|
||||
/**
|
||||
* Load a ECDSA public key using botan.
|
||||
*
|
||||
* Accepts a BUILD_BLOB_ASN1_DER argument.
|
||||
*
|
||||
* @param type type of the key, must be KEY_ECDSA
|
||||
* @param args builder_part_t argument list
|
||||
* @return loaded key, NULL on failure
|
||||
*/
|
||||
botan_ec_public_key_t *botan_ec_public_key_load(key_type_t type, va_list args);
|
||||
|
||||
#endif /** BOTAN_EC_PUBLIC_KEY_H_ @}*/
|
||||
|
|
@ -0,0 +1,349 @@
|
|||
/*
|
||||
* Copyright (C) 2018 Atanas Filyanov
|
||||
* Rohde & Schwarz Cybersecurity GmbH
|
||||
*
|
||||
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
||||
* of this software and associated documentation files (the "Software"), to deal
|
||||
* in the Software without restriction, including without limitation the rights
|
||||
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
||||
* copies of the Software, and to permit persons to whom the Software is
|
||||
* furnished to do so, subject to the following conditions:
|
||||
*
|
||||
* The above copyright notice and this permission notice shall be included in
|
||||
* all copies or substantial portions of the Software.
|
||||
*
|
||||
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||||
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
||||
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||||
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
||||
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
||||
* THE SOFTWARE.
|
||||
*/
|
||||
|
||||
#include "botan_gcm.h"
|
||||
|
||||
#include <botan/build.h>
|
||||
|
||||
#ifdef BOTAN_HAS_AES
|
||||
#ifdef BOTAN_HAS_AEAD_GCM
|
||||
|
||||
#include <crypto/iv/iv_gen_seq.h>
|
||||
|
||||
#include <botan/ffi.h>
|
||||
|
||||
/**
|
||||
* as defined in RFC 4106
|
||||
*/
|
||||
#define IV_LEN 8
|
||||
#define SALT_LEN 4
|
||||
#define NONCE_LEN (IV_LEN + SALT_LEN)
|
||||
|
||||
typedef struct private_aead_t private_aead_t;
|
||||
|
||||
struct private_aead_t {
|
||||
|
||||
/**
|
||||
* Public interface
|
||||
*/
|
||||
aead_t public;
|
||||
|
||||
/**
|
||||
* The encryption key
|
||||
*/
|
||||
chunk_t key;
|
||||
|
||||
/**
|
||||
* Salt value
|
||||
*/
|
||||
char salt[SALT_LEN];
|
||||
|
||||
/**
|
||||
* Size of the integrity check value
|
||||
*/
|
||||
size_t icv_size;
|
||||
|
||||
/**
|
||||
* IV generator
|
||||
*/
|
||||
iv_gen_t *iv_gen;
|
||||
|
||||
/**
|
||||
* The cipher to use
|
||||
*/
|
||||
const char* cipher_name;
|
||||
};
|
||||
|
||||
/**
|
||||
* Do the actual en/decryption
|
||||
*/
|
||||
static bool crypt(private_aead_t *this, chunk_t data, chunk_t assoc, chunk_t iv,
|
||||
u_char *out, uint32_t init_flag)
|
||||
{
|
||||
botan_cipher_t cipher;
|
||||
uint8_t nonce[NONCE_LEN];
|
||||
size_t output_written = 0;
|
||||
size_t input_consumed = 0;
|
||||
|
||||
memcpy(nonce, this->salt, SALT_LEN);
|
||||
memcpy(nonce + SALT_LEN, iv.ptr, IV_LEN);
|
||||
|
||||
if (botan_cipher_init(&cipher, this->cipher_name, init_flag))
|
||||
{
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
if (botan_cipher_set_key(cipher, this->key.ptr, this->key.len))
|
||||
{
|
||||
botan_cipher_destroy(cipher);
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
if (assoc.len
|
||||
&& botan_cipher_set_associated_data(cipher, assoc.ptr, assoc.len))
|
||||
{
|
||||
botan_cipher_destroy(cipher);
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
if (botan_cipher_start(cipher, nonce, NONCE_LEN))
|
||||
{
|
||||
botan_cipher_destroy(cipher);
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
if (init_flag == BOTAN_CIPHER_INIT_FLAG_ENCRYPT)
|
||||
{
|
||||
if (botan_cipher_update(cipher, BOTAN_CIPHER_UPDATE_FLAG_FINAL,
|
||||
out, data.len + this->icv_size, &output_written,
|
||||
data.ptr, data.len, &input_consumed))
|
||||
{
|
||||
botan_cipher_destroy(cipher);
|
||||
return FALSE;
|
||||
}
|
||||
}
|
||||
else if (init_flag == BOTAN_CIPHER_INIT_FLAG_DECRYPT)
|
||||
{
|
||||
if (botan_cipher_update(cipher, BOTAN_CIPHER_UPDATE_FLAG_FINAL,
|
||||
out, data.len, &output_written,
|
||||
data.ptr, data.len + this->icv_size, &input_consumed))
|
||||
{
|
||||
botan_cipher_destroy(cipher);
|
||||
return FALSE;
|
||||
}
|
||||
}
|
||||
|
||||
botan_cipher_destroy(cipher);
|
||||
|
||||
return TRUE;
|
||||
}
|
||||
|
||||
METHOD(aead_t, encrypt, bool,
|
||||
private_aead_t *this, chunk_t plain, chunk_t assoc, chunk_t iv,
|
||||
chunk_t *encrypted)
|
||||
{
|
||||
u_char *out;
|
||||
|
||||
out = plain.ptr;
|
||||
if (encrypted)
|
||||
{
|
||||
*encrypted = chunk_alloc(plain.len + this->icv_size);
|
||||
out = encrypted->ptr;
|
||||
}
|
||||
return crypt(this, plain, assoc, iv, out, BOTAN_CIPHER_INIT_FLAG_ENCRYPT);
|
||||
}
|
||||
|
||||
METHOD(aead_t, decrypt, bool,
|
||||
private_aead_t *this, chunk_t encrypted, chunk_t assoc, chunk_t iv,
|
||||
chunk_t *plain)
|
||||
{
|
||||
u_char *out;
|
||||
|
||||
if (encrypted.len < this->icv_size)
|
||||
{
|
||||
return FALSE;
|
||||
}
|
||||
encrypted.len -= this->icv_size;
|
||||
|
||||
out = encrypted.ptr;
|
||||
if (plain)
|
||||
{
|
||||
*plain = chunk_alloc(encrypted.len);
|
||||
out = plain->ptr;
|
||||
}
|
||||
return crypt(this, encrypted, assoc, iv, out,
|
||||
BOTAN_CIPHER_INIT_FLAG_DECRYPT);
|
||||
}
|
||||
|
||||
METHOD(aead_t, get_block_size, size_t,
|
||||
private_aead_t *this)
|
||||
{
|
||||
return 1;
|
||||
}
|
||||
|
||||
METHOD(aead_t, get_icv_size, size_t,
|
||||
private_aead_t *this)
|
||||
{
|
||||
return this->icv_size;
|
||||
}
|
||||
|
||||
METHOD(aead_t, get_iv_size, size_t,
|
||||
private_aead_t *this)
|
||||
{
|
||||
return IV_LEN;
|
||||
}
|
||||
|
||||
METHOD(aead_t, get_iv_gen, iv_gen_t*,
|
||||
private_aead_t *this)
|
||||
{
|
||||
return this->iv_gen;
|
||||
}
|
||||
|
||||
METHOD(aead_t, get_key_size, size_t,
|
||||
private_aead_t *this)
|
||||
{
|
||||
return this->key.len + SALT_LEN;
|
||||
}
|
||||
|
||||
METHOD(aead_t, set_key, bool,
|
||||
private_aead_t *this, chunk_t key)
|
||||
{
|
||||
if (key.len != get_key_size(this))
|
||||
{
|
||||
return FALSE;
|
||||
}
|
||||
memcpy(this->salt, key.ptr + key.len - SALT_LEN, SALT_LEN);
|
||||
memcpy(this->key.ptr, key.ptr, this->key.len);
|
||||
return TRUE;
|
||||
}
|
||||
|
||||
METHOD(aead_t, destroy, void,
|
||||
private_aead_t *this)
|
||||
{
|
||||
chunk_clear(&this->key);
|
||||
this->iv_gen->destroy(this->iv_gen);
|
||||
free(this);
|
||||
}
|
||||
|
||||
aead_t *botan_gcm_create(encryption_algorithm_t algo,
|
||||
size_t key_size, size_t salt_size)
|
||||
{
|
||||
private_aead_t *this;
|
||||
|
||||
INIT(this,
|
||||
.public = {
|
||||
.encrypt = _encrypt,
|
||||
.decrypt = _decrypt,
|
||||
.get_block_size = _get_block_size,
|
||||
.get_icv_size = _get_icv_size,
|
||||
.get_iv_size = _get_iv_size,
|
||||
.get_iv_gen = _get_iv_gen,
|
||||
.get_key_size = _get_key_size,
|
||||
.set_key = _set_key,
|
||||
.destroy = _destroy,
|
||||
},
|
||||
);
|
||||
|
||||
switch (algo)
|
||||
{
|
||||
case ENCR_AES_GCM_ICV8:
|
||||
this->icv_size = 8;
|
||||
break;
|
||||
case ENCR_AES_GCM_ICV12:
|
||||
this->icv_size = 12;
|
||||
break;
|
||||
case ENCR_AES_GCM_ICV16:
|
||||
this->icv_size = 16;
|
||||
break;
|
||||
default:
|
||||
free(this);
|
||||
return NULL;
|
||||
}
|
||||
|
||||
if (salt_size && salt_size != SALT_LEN)
|
||||
{
|
||||
/* currently not supported */
|
||||
free(this);
|
||||
return NULL;
|
||||
}
|
||||
|
||||
switch (algo)
|
||||
{
|
||||
case ENCR_AES_GCM_ICV8:
|
||||
switch (key_size)
|
||||
{
|
||||
case 0:
|
||||
key_size = 16;
|
||||
case 16:
|
||||
this->cipher_name = "AES-128/GCM(8)";
|
||||
break;
|
||||
case 24:
|
||||
this->cipher_name = "AES-192/GCM(8)";
|
||||
break;
|
||||
case 32:
|
||||
this->cipher_name = "AES-256/GCM(8)";
|
||||
break;
|
||||
default:
|
||||
free(this);
|
||||
return NULL;
|
||||
}
|
||||
break;
|
||||
case ENCR_AES_GCM_ICV12:
|
||||
switch (key_size)
|
||||
{
|
||||
case 0:
|
||||
key_size = 16;
|
||||
/* FALL */
|
||||
case 16:
|
||||
this->cipher_name = "AES-128/GCM(12)";
|
||||
break;
|
||||
case 24:
|
||||
this->cipher_name = "AES-192/GCM(12)";
|
||||
break;
|
||||
case 32:
|
||||
this->cipher_name = "AES-256/GCM(12)";
|
||||
break;
|
||||
default:
|
||||
free(this);
|
||||
return NULL;
|
||||
}
|
||||
break;
|
||||
case ENCR_AES_GCM_ICV16:
|
||||
switch (key_size)
|
||||
{
|
||||
case 0:
|
||||
key_size = 16;
|
||||
/* FALL */
|
||||
case 16:
|
||||
this->cipher_name = "AES-128/GCM";
|
||||
break;
|
||||
case 24:
|
||||
this->cipher_name = "AES-192/GCM";
|
||||
break;
|
||||
case 32:
|
||||
this->cipher_name = "AES-256/GCM";
|
||||
break;
|
||||
default:
|
||||
free(this);
|
||||
return NULL;
|
||||
}
|
||||
break;
|
||||
default:
|
||||
free(this);
|
||||
return NULL;
|
||||
}
|
||||
|
||||
if (!this->cipher_name)
|
||||
{
|
||||
free(this);
|
||||
return NULL;
|
||||
}
|
||||
|
||||
this->key = chunk_alloc(key_size);
|
||||
this->iv_gen = iv_gen_seq_create();
|
||||
|
||||
return &this->public;
|
||||
}
|
||||
|
||||
#endif
|
||||
#endif
|
||||
|
|
@ -0,0 +1,53 @@
|
|||
/*
|
||||
* Copyright (C) 2018 Atanas Filyanov
|
||||
* Rohde & Schwarz Cybersecurity GmbH
|
||||
*
|
||||
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
||||
* of this software and associated documentation files (the "Software"), to deal
|
||||
* in the Software without restriction, including without limitation the rights
|
||||
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
||||
* copies of the Software, and to permit persons to whom the Software is
|
||||
* furnished to do so, subject to the following conditions:
|
||||
*
|
||||
* The above copyright notice and this permission notice shall be included in
|
||||
* all copies or substantial portions of the Software.
|
||||
*
|
||||
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||||
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
||||
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||||
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
||||
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
||||
* THE SOFTWARE.
|
||||
*/
|
||||
|
||||
/**
|
||||
* Implements the aead_t interface using Botan in GCM mode.
|
||||
*
|
||||
* @defgroup botan_gcm botan_gcm
|
||||
* @{ @ingroup botan_p
|
||||
*/
|
||||
|
||||
#ifndef BOTAN_GCM_H_
|
||||
#define BOTAN_GCM_H_
|
||||
|
||||
#include <botan/build.h>
|
||||
|
||||
#ifdef BOTAN_HAS_AEAD_GCM
|
||||
|
||||
#include <crypto/aead.h>
|
||||
|
||||
/**
|
||||
* Constructor to create aead_t implementation.
|
||||
*
|
||||
* @param algo algorithm to implement
|
||||
* @param key_size key size in bytes
|
||||
* @param salt_size size of implicit salt length
|
||||
* @return aead_t object, NULL if not supported
|
||||
*/
|
||||
aead_t *botan_gcm_create(encryption_algorithm_t algo, size_t key_size,
|
||||
size_t salt_size);
|
||||
|
||||
#endif
|
||||
|
||||
#endif /** BOTAN_GCM_H_ @}*/
|
||||
|
|
@ -0,0 +1,152 @@
|
|||
/*
|
||||
* Copyright (C) 2018 René Korthaus
|
||||
* Rohde & Schwarz Cybersecurity GmbH
|
||||
*
|
||||
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
||||
* of this software and associated documentation files (the "Software"), to deal
|
||||
* in the Software without restriction, including without limitation the rights
|
||||
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
||||
* copies of the Software, and to permit persons to whom the Software is
|
||||
* furnished to do so, subject to the following conditions:
|
||||
*
|
||||
* The above copyright notice and this permission notice shall be included in
|
||||
* all copies or substantial portions of the Software.
|
||||
*
|
||||
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||||
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
||||
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||||
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
||||
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
||||
* THE SOFTWARE.
|
||||
*/
|
||||
|
||||
#include "botan_hasher.h"
|
||||
|
||||
#include <utils/debug.h>
|
||||
|
||||
#include <botan/ffi.h>
|
||||
|
||||
typedef struct private_botan_hasher_t private_botan_hasher_t;
|
||||
|
||||
/**
|
||||
* Private data of botan_hasher_t
|
||||
*/
|
||||
struct private_botan_hasher_t {
|
||||
|
||||
/**
|
||||
* Public part of this class.
|
||||
*/
|
||||
botan_hasher_t public;
|
||||
|
||||
/**
|
||||
* botan hash instance
|
||||
*/
|
||||
botan_hash_t hash;
|
||||
};
|
||||
|
||||
METHOD(hasher_t, get_hash_size, size_t,
|
||||
private_botan_hasher_t *this)
|
||||
{
|
||||
size_t len = 0;
|
||||
if (botan_hash_output_length(this->hash, &len))
|
||||
{
|
||||
return 0;
|
||||
}
|
||||
return len;
|
||||
}
|
||||
|
||||
METHOD(hasher_t, reset, bool,
|
||||
private_botan_hasher_t *this)
|
||||
{
|
||||
if (botan_hash_clear(this->hash))
|
||||
{
|
||||
return FALSE;
|
||||
}
|
||||
return TRUE;
|
||||
}
|
||||
|
||||
METHOD(hasher_t, get_hash, bool,
|
||||
private_botan_hasher_t *this, chunk_t chunk, uint8_t *hash)
|
||||
{
|
||||
if (botan_hash_update(this->hash, chunk.ptr, chunk.len))
|
||||
{
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
if (hash)
|
||||
{
|
||||
if (botan_hash_final(this->hash, hash))
|
||||
{
|
||||
return FALSE;
|
||||
}
|
||||
}
|
||||
return TRUE;
|
||||
}
|
||||
|
||||
METHOD(hasher_t, allocate_hash, bool,
|
||||
private_botan_hasher_t *this, chunk_t chunk, chunk_t *hash)
|
||||
{
|
||||
if (hash)
|
||||
{
|
||||
*hash = chunk_alloc(get_hash_size(this));
|
||||
return get_hash(this, chunk, hash->ptr);
|
||||
}
|
||||
return get_hash(this, chunk, NULL);
|
||||
}
|
||||
|
||||
METHOD(hasher_t, destroy, void,
|
||||
private_botan_hasher_t *this)
|
||||
{
|
||||
botan_hash_destroy(this->hash);
|
||||
free(this);
|
||||
}
|
||||
|
||||
/*
|
||||
* Described in header
|
||||
*/
|
||||
botan_hasher_t *botan_hasher_create(hash_algorithm_t algo)
|
||||
{
|
||||
private_botan_hasher_t *this;
|
||||
const char* hash_name;
|
||||
|
||||
switch (algo)
|
||||
{
|
||||
case HASH_SHA1:
|
||||
hash_name = "SHA-1";
|
||||
break;
|
||||
case HASH_SHA224:
|
||||
hash_name = "SHA-224";
|
||||
break;
|
||||
case HASH_SHA256:
|
||||
hash_name = "SHA-256";
|
||||
break;
|
||||
case HASH_SHA384:
|
||||
hash_name = "SHA-384";
|
||||
break;
|
||||
case HASH_SHA512:
|
||||
hash_name = "SHA-512";
|
||||
break;
|
||||
default:
|
||||
return NULL;
|
||||
}
|
||||
|
||||
INIT(this,
|
||||
.public = {
|
||||
.hasher = {
|
||||
.get_hash = _get_hash,
|
||||
.allocate_hash = _allocate_hash,
|
||||
.get_hash_size = _get_hash_size,
|
||||
.reset = _reset,
|
||||
.destroy = _destroy,
|
||||
},
|
||||
},
|
||||
);
|
||||
|
||||
if (botan_hash_init(&this->hash, hash_name, 0))
|
||||
{
|
||||
return NULL;
|
||||
}
|
||||
|
||||
return &this->public;
|
||||
}
|
||||
|
|
@ -0,0 +1,54 @@
|
|||
/*
|
||||
* Copyright (C) 2017 René Korthaus, Rohde & Schwarz Cybersecurity
|
||||
*
|
||||
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
||||
* of this software and associated documentation files (the "Software"), to deal
|
||||
* in the Software without restriction, including without limitation the rights
|
||||
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
||||
* copies of the Software, and to permit persons to whom the Software is
|
||||
* furnished to do so, subject to the following conditions:
|
||||
*
|
||||
* The above copyright notice and this permission notice shall be included in
|
||||
* all copies or substantial portions of the Software.
|
||||
*
|
||||
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||||
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
||||
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||||
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
||||
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
||||
* THE SOFTWARE.
|
||||
*/
|
||||
|
||||
/**
|
||||
* @defgroup botan_hasher botan_hasher
|
||||
* @{ @ingroup botan_p
|
||||
*/
|
||||
|
||||
#ifndef BOTAN_HASHER_H_
|
||||
#define BOTAN_HASHER_H_
|
||||
|
||||
typedef struct botan_hasher_t botan_hasher_t;
|
||||
|
||||
#include <crypto/hashers/hasher.h>
|
||||
|
||||
/**
|
||||
* Implementation of hashers using botan.
|
||||
*/
|
||||
struct botan_hasher_t {
|
||||
|
||||
/**
|
||||
* The hasher_t interface.
|
||||
*/
|
||||
hasher_t hasher;
|
||||
};
|
||||
|
||||
/**
|
||||
* Constructor to create botan_hasher_t.
|
||||
*
|
||||
* @param algo algorithm
|
||||
* @return botan_hasher_t, NULL if not supported
|
||||
*/
|
||||
botan_hasher_t *botan_hasher_create(hash_algorithm_t algo);
|
||||
|
||||
#endif /** BOTAN_HASHER_H_ @}*/
|
||||
|
|
@ -0,0 +1,178 @@
|
|||
/*
|
||||
* Copyright (C) 2018 René Korthaus
|
||||
* Rohde & Schwarz Cybersecurity GmbH
|
||||
*
|
||||
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
||||
* of this software and associated documentation files (the "Software"), to deal
|
||||
* in the Software without restriction, including without limitation the rights
|
||||
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
||||
* copies of the Software, and to permit persons to whom the Software is
|
||||
* furnished to do so, subject to the following conditions:
|
||||
*
|
||||
* The above copyright notice and this permission notice shall be included in
|
||||
* all copies or substantial portions of the Software.
|
||||
*
|
||||
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||||
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
||||
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||||
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
||||
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
||||
* THE SOFTWARE.
|
||||
*/
|
||||
|
||||
#include "botan_hmac.h"
|
||||
|
||||
#include <botan/build.h>
|
||||
|
||||
#ifdef BOTAN_HAS_HMAC
|
||||
|
||||
#include <crypto/mac.h>
|
||||
#include <crypto/prfs/mac_prf.h>
|
||||
#include <crypto/signers/mac_signer.h>
|
||||
|
||||
#include <botan/ffi.h>
|
||||
|
||||
typedef struct private_botan_mac_t private_botan_mac_t;
|
||||
|
||||
/**
|
||||
* Private data of a mac_t object.
|
||||
*/
|
||||
struct private_botan_mac_t {
|
||||
|
||||
/**
|
||||
* Public interface
|
||||
*/
|
||||
mac_t public;
|
||||
|
||||
/**
|
||||
* HMAC
|
||||
*/
|
||||
botan_mac_t hmac;
|
||||
};
|
||||
|
||||
METHOD(mac_t, set_key, bool,
|
||||
private_botan_mac_t *this, chunk_t key)
|
||||
{
|
||||
if (botan_mac_set_key(this->hmac, key.ptr, key.len))
|
||||
{
|
||||
return FALSE;
|
||||
}
|
||||
return TRUE;
|
||||
}
|
||||
|
||||
METHOD(mac_t, get_mac, bool,
|
||||
private_botan_mac_t *this, chunk_t data, uint8_t *out)
|
||||
{
|
||||
if (botan_mac_update(this->hmac, data.ptr, data.len))
|
||||
{
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
if ( out == NULL)
|
||||
{
|
||||
return TRUE;
|
||||
}
|
||||
|
||||
if (botan_mac_final(this->hmac, out))
|
||||
{
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
return TRUE;
|
||||
}
|
||||
|
||||
METHOD(mac_t, get_mac_size, size_t,
|
||||
private_botan_mac_t *this)
|
||||
{
|
||||
size_t len = 0;
|
||||
if (botan_mac_output_length(this->hmac, &len))
|
||||
{
|
||||
return 0;
|
||||
}
|
||||
return len;
|
||||
}
|
||||
|
||||
METHOD(mac_t, destroy, void,
|
||||
private_botan_mac_t *this)
|
||||
{
|
||||
botan_mac_destroy(this->hmac);
|
||||
free(this);
|
||||
}
|
||||
|
||||
/*
|
||||
* Create a Botan-backed implementation of the mac_t interface
|
||||
*/
|
||||
static mac_t *hmac_create(hash_algorithm_t algo)
|
||||
{
|
||||
private_botan_mac_t *this;
|
||||
const char* hmac_name;
|
||||
|
||||
switch (algo)
|
||||
{
|
||||
case HASH_SHA1:
|
||||
hmac_name = "HMAC(SHA-1)";
|
||||
break;
|
||||
case HASH_SHA256:
|
||||
hmac_name = "HMAC(SHA-256)";
|
||||
break;
|
||||
case HASH_SHA384:
|
||||
hmac_name = "HMAC(SHA-384)";
|
||||
break;
|
||||
case HASH_SHA512:
|
||||
hmac_name = "HMAC(SHA-512)";
|
||||
break;
|
||||
default:
|
||||
return NULL;
|
||||
}
|
||||
|
||||
INIT(this,
|
||||
.public = {
|
||||
.get_mac = _get_mac,
|
||||
.get_mac_size = _get_mac_size,
|
||||
.set_key = _set_key,
|
||||
.destroy = _destroy,
|
||||
}
|
||||
);
|
||||
|
||||
if (botan_mac_init(&this->hmac, hmac_name, 0))
|
||||
{
|
||||
free(this);
|
||||
return NULL;
|
||||
}
|
||||
|
||||
return &this->public;
|
||||
}
|
||||
|
||||
/*
|
||||
* Described in header
|
||||
*/
|
||||
prf_t *botan_hmac_prf_create(pseudo_random_function_t algo)
|
||||
{
|
||||
mac_t *hmac;
|
||||
|
||||
hmac = hmac_create(hasher_algorithm_from_prf(algo));
|
||||
if (hmac)
|
||||
{
|
||||
return mac_prf_create(hmac);
|
||||
}
|
||||
return NULL;
|
||||
}
|
||||
|
||||
/*
|
||||
* Described in header
|
||||
*/
|
||||
signer_t *botan_hmac_signer_create(integrity_algorithm_t algo)
|
||||
{
|
||||
mac_t *hmac;
|
||||
size_t trunc;
|
||||
|
||||
hmac = hmac_create(hasher_algorithm_from_integrity(algo, &trunc));
|
||||
if (hmac)
|
||||
{
|
||||
return mac_signer_create(hmac, trunc);
|
||||
}
|
||||
return NULL;
|
||||
}
|
||||
|
||||
#endif
|
||||
|
|
@ -0,0 +1,53 @@
|
|||
/*
|
||||
* Copyright (C) 2018 René Korthaus
|
||||
* Rohde & Schwarz Cybersecurity GmbH
|
||||
*
|
||||
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
||||
* of this software and associated documentation files (the "Software"), to deal
|
||||
* in the Software without restriction, including without limitation the rights
|
||||
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
||||
* copies of the Software, and to permit persons to whom the Software is
|
||||
* furnished to do so, subject to the following conditions:
|
||||
*
|
||||
* The above copyright notice and this permission notice shall be included in
|
||||
* all copies or substantial portions of the Software.
|
||||
*
|
||||
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||||
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
||||
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||||
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
||||
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
||||
* THE SOFTWARE.
|
||||
*/
|
||||
|
||||
/**
|
||||
* Implements HMAC based PRF and signer using Botan's HMAC functions.
|
||||
*
|
||||
* @defgroup botan_hmac botan_hmac
|
||||
* @{ @ingroup botan_p
|
||||
*/
|
||||
|
||||
#ifndef BOTAN_HMAC_H_
|
||||
#define BOTAN_HMAC_H_
|
||||
|
||||
#include <crypto/prfs/prf.h>
|
||||
#include <crypto/signers/signer.h>
|
||||
|
||||
/**
|
||||
* Creates a new prf_t object based on an HMAC.
|
||||
*
|
||||
* @param algo algorithm to implement
|
||||
* @return prf_t object, NULL if not supported
|
||||
*/
|
||||
prf_t *botan_hmac_prf_create(pseudo_random_function_t algo);
|
||||
|
||||
/**
|
||||
* Creates a new signer_t object based on an HMAC.
|
||||
*
|
||||
* @param algo algorithm to implement
|
||||
* @return signer_t, NULL if not supported
|
||||
*/
|
||||
signer_t *botan_hmac_signer_create(integrity_algorithm_t algo);
|
||||
|
||||
#endif /** BOTAN_HMAC_H_ @}*/
|
||||
|
|
@ -0,0 +1,282 @@
|
|||
/*
|
||||
* Copyright (C) 2018 René Korthaus
|
||||
* Copyright (C) 2018 Konstantinos Kolelis
|
||||
* Rohde & Schwarz Cybersecurity GmbH
|
||||
*
|
||||
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
||||
* of this software and associated documentation files (the "Software"), to deal
|
||||
* in the Software without restriction, including without limitation the rights
|
||||
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
||||
* copies of the Software, and to permit persons to whom the Software is
|
||||
* furnished to do so, subject to the following conditions:
|
||||
*
|
||||
* The above copyright notice and this permission notice shall be included in
|
||||
* all copies or substantial portions of the Software.
|
||||
*
|
||||
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||||
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
||||
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||||
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
||||
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
||||
* THE SOFTWARE.
|
||||
*/
|
||||
|
||||
#include "botan_plugin.h"
|
||||
#include "botan_rng.h"
|
||||
#include "botan_hasher.h"
|
||||
#include "botan_crypter.h"
|
||||
#include "botan_diffie_hellman.h"
|
||||
#include "botan_hmac.h"
|
||||
#include "botan_rsa_public_key.h"
|
||||
#include "botan_rsa_private_key.h"
|
||||
#include "botan_ec_diffie_hellman.h"
|
||||
#include "botan_ec_public_key.h"
|
||||
#include "botan_ec_private_key.h"
|
||||
#include "botan_gcm.h"
|
||||
|
||||
#include <library.h>
|
||||
|
||||
#include <botan/build.h>
|
||||
#include <botan/ffi.h>
|
||||
|
||||
typedef struct private_botan_plugin_t private_botan_plugin_t;
|
||||
|
||||
/**
|
||||
* private data of botan_plugin
|
||||
*/
|
||||
struct private_botan_plugin_t {
|
||||
|
||||
/**
|
||||
* public functions
|
||||
*/
|
||||
botan_plugin_t public;
|
||||
};
|
||||
|
||||
METHOD(plugin_t, get_name, char*,
|
||||
private_botan_plugin_t *this)
|
||||
{
|
||||
return "botan";
|
||||
}
|
||||
|
||||
METHOD(plugin_t, get_features, int,
|
||||
private_botan_plugin_t *this, plugin_feature_t *features[])
|
||||
{
|
||||
static plugin_feature_t f[] = {
|
||||
|
||||
#ifdef BOTAN_HAS_DIFFIE_HELLMAN
|
||||
/* MODP DH groups */
|
||||
PLUGIN_REGISTER(DH, botan_diffie_hellman_create),
|
||||
PLUGIN_PROVIDE(DH, MODP_3072_BIT),
|
||||
PLUGIN_PROVIDE(DH, MODP_4096_BIT),
|
||||
PLUGIN_PROVIDE(DH, MODP_6144_BIT),
|
||||
PLUGIN_PROVIDE(DH, MODP_8192_BIT),
|
||||
PLUGIN_PROVIDE(DH, MODP_2048_BIT),
|
||||
PLUGIN_PROVIDE(DH, MODP_2048_224),
|
||||
PLUGIN_PROVIDE(DH, MODP_2048_256),
|
||||
PLUGIN_PROVIDE(DH, MODP_1536_BIT),
|
||||
PLUGIN_PROVIDE(DH, MODP_1024_BIT),
|
||||
PLUGIN_PROVIDE(DH, MODP_1024_160),
|
||||
PLUGIN_PROVIDE(DH, MODP_768_BIT),
|
||||
PLUGIN_REGISTER(DH, botan_diffie_hellman_create_custom),
|
||||
PLUGIN_PROVIDE(DH, MODP_CUSTOM),
|
||||
#endif
|
||||
/* crypters */
|
||||
PLUGIN_REGISTER(CRYPTER, botan_crypter_create),
|
||||
#ifdef BOTAN_HAS_AES
|
||||
#ifdef BOTAN_HAS_MODE_CBC
|
||||
PLUGIN_PROVIDE(CRYPTER, ENCR_AES_CBC, 16),
|
||||
PLUGIN_PROVIDE(CRYPTER, ENCR_AES_CBC, 24),
|
||||
PLUGIN_PROVIDE(CRYPTER, ENCR_AES_CBC, 32),
|
||||
#endif
|
||||
#ifdef BOTAN_HAS_AEAD_GCM
|
||||
/* AES GCM */
|
||||
PLUGIN_REGISTER(AEAD, botan_gcm_create),
|
||||
PLUGIN_PROVIDE(AEAD, ENCR_AES_GCM_ICV16, 16),
|
||||
PLUGIN_PROVIDE(AEAD, ENCR_AES_GCM_ICV16, 24),
|
||||
PLUGIN_PROVIDE(AEAD, ENCR_AES_GCM_ICV16, 32),
|
||||
PLUGIN_PROVIDE(AEAD, ENCR_AES_GCM_ICV12, 16),
|
||||
PLUGIN_PROVIDE(AEAD, ENCR_AES_GCM_ICV12, 24),
|
||||
PLUGIN_PROVIDE(AEAD, ENCR_AES_GCM_ICV12, 32),
|
||||
#endif
|
||||
#endif
|
||||
/* hashers */
|
||||
PLUGIN_REGISTER(HASHER, botan_hasher_create),
|
||||
#ifdef BOTAN_HAS_SHA1
|
||||
PLUGIN_PROVIDE(HASHER, HASH_SHA1),
|
||||
#endif
|
||||
#ifdef BOTAN_HAS_SHA2_32
|
||||
PLUGIN_PROVIDE(HASHER, HASH_SHA224),
|
||||
PLUGIN_PROVIDE(HASHER, HASH_SHA256),
|
||||
#endif
|
||||
#ifdef BOTAN_HAS_SHA2_64
|
||||
PLUGIN_PROVIDE(HASHER, HASH_SHA384),
|
||||
PLUGIN_PROVIDE(HASHER, HASH_SHA512),
|
||||
#endif
|
||||
/* prfs */
|
||||
#ifdef BOTAN_HAS_HMAC
|
||||
PLUGIN_REGISTER(PRF, botan_hmac_prf_create),
|
||||
#ifdef BOTAN_HAS_SHA1
|
||||
PLUGIN_PROVIDE(PRF, PRF_HMAC_SHA1),
|
||||
#endif
|
||||
#ifdef BOTAN_HAS_SHA2_32
|
||||
PLUGIN_PROVIDE(PRF, PRF_HMAC_SHA2_256),
|
||||
#endif
|
||||
#ifdef BOTAN_HAS_SHA2_64
|
||||
PLUGIN_PROVIDE(PRF, PRF_HMAC_SHA2_384),
|
||||
PLUGIN_PROVIDE(PRF, PRF_HMAC_SHA2_512),
|
||||
#endif
|
||||
/* signer */
|
||||
PLUGIN_REGISTER(SIGNER, botan_hmac_signer_create),
|
||||
#ifdef BOTAN_HAS_SHA1
|
||||
PLUGIN_PROVIDE(SIGNER, AUTH_HMAC_SHA1_96),
|
||||
PLUGIN_PROVIDE(SIGNER, AUTH_HMAC_SHA1_128),
|
||||
PLUGIN_PROVIDE(SIGNER, AUTH_HMAC_SHA1_160),
|
||||
#endif
|
||||
#ifdef BOTAN_HAS_SHA2_32
|
||||
PLUGIN_PROVIDE(SIGNER, AUTH_HMAC_SHA2_256_128),
|
||||
PLUGIN_PROVIDE(SIGNER, AUTH_HMAC_SHA2_256_256),
|
||||
#endif
|
||||
#ifdef BOTAN_HAS_SHA2_64
|
||||
PLUGIN_PROVIDE(SIGNER, AUTH_HMAC_SHA2_384_192),
|
||||
PLUGIN_PROVIDE(SIGNER, AUTH_HMAC_SHA2_384_384),
|
||||
PLUGIN_PROVIDE(SIGNER, AUTH_HMAC_SHA2_512_256),
|
||||
PLUGIN_PROVIDE(SIGNER, AUTH_HMAC_SHA2_512_512),
|
||||
#endif
|
||||
|
||||
#ifdef BOTAN_HAS_ECDH
|
||||
/* EC DH groups */
|
||||
PLUGIN_REGISTER(DH, botan_ec_diffie_hellman_create),
|
||||
PLUGIN_PROVIDE(DH, ECP_256_BIT),
|
||||
PLUGIN_PROVIDE(DH, ECP_384_BIT),
|
||||
PLUGIN_PROVIDE(DH, ECP_521_BIT),
|
||||
PLUGIN_PROVIDE(DH, ECP_256_BP),
|
||||
PLUGIN_PROVIDE(DH, ECP_384_BP),
|
||||
PLUGIN_PROVIDE(DH, ECP_512_BP),
|
||||
#endif
|
||||
#endif
|
||||
/* RSA */
|
||||
#ifdef BOTAN_HAS_RSA
|
||||
/* public/private key loading/generation */
|
||||
PLUGIN_REGISTER(PUBKEY, botan_rsa_public_key_load, TRUE),
|
||||
PLUGIN_PROVIDE(PUBKEY, KEY_RSA),
|
||||
PLUGIN_REGISTER(PRIVKEY, botan_rsa_private_key_load, TRUE),
|
||||
PLUGIN_PROVIDE(PRIVKEY, KEY_RSA),
|
||||
PLUGIN_REGISTER(PRIVKEY_GEN, botan_rsa_private_key_gen, FALSE),
|
||||
PLUGIN_PROVIDE(PRIVKEY_GEN, KEY_RSA),
|
||||
/* encryption/signature schemes */
|
||||
#ifdef BOTAN_HAS_EMSA_PKCS1
|
||||
PLUGIN_PROVIDE(PRIVKEY_SIGN, SIGN_RSA_EMSA_PKCS1_NULL),
|
||||
PLUGIN_PROVIDE(PUBKEY_VERIFY, SIGN_RSA_EMSA_PKCS1_NULL),
|
||||
#ifdef BOTAN_HAS_SHA1
|
||||
PLUGIN_PROVIDE(PRIVKEY_SIGN, SIGN_RSA_EMSA_PKCS1_SHA1),
|
||||
PLUGIN_PROVIDE(PRIVKEY_SIGN, SIGN_RSA_EMSA_PKCS1_SHA1),
|
||||
PLUGIN_PROVIDE(PUBKEY_VERIFY, SIGN_RSA_EMSA_PKCS1_SHA1),
|
||||
PLUGIN_PROVIDE(PUBKEY_VERIFY, SIGN_RSA_EMSA_PKCS1_SHA1),
|
||||
#endif
|
||||
#ifdef BOTAN_HAS_SHA2_32
|
||||
PLUGIN_PROVIDE(PRIVKEY_SIGN, SIGN_RSA_EMSA_PKCS1_SHA2_224),
|
||||
PLUGIN_PROVIDE(PRIVKEY_SIGN, SIGN_RSA_EMSA_PKCS1_SHA2_256),
|
||||
PLUGIN_PROVIDE(PUBKEY_VERIFY, SIGN_RSA_EMSA_PKCS1_SHA2_224),
|
||||
PLUGIN_PROVIDE(PUBKEY_VERIFY, SIGN_RSA_EMSA_PKCS1_SHA2_256),
|
||||
#endif
|
||||
#ifdef BOTAN_HAS_SHA2_64
|
||||
PLUGIN_PROVIDE(PRIVKEY_SIGN, SIGN_RSA_EMSA_PKCS1_SHA2_384),
|
||||
PLUGIN_PROVIDE(PRIVKEY_SIGN, SIGN_RSA_EMSA_PKCS1_SHA2_512),
|
||||
PLUGIN_PROVIDE(PUBKEY_VERIFY, SIGN_RSA_EMSA_PKCS1_SHA2_384),
|
||||
PLUGIN_PROVIDE(PUBKEY_VERIFY, SIGN_RSA_EMSA_PKCS1_SHA2_512),
|
||||
#endif
|
||||
#endif
|
||||
#ifdef BOTAN_HAS_EMSA_PSSR
|
||||
PLUGIN_PROVIDE(PRIVKEY_SIGN, SIGN_RSA_EMSA_PSS),
|
||||
PLUGIN_PROVIDE(PUBKEY_VERIFY, SIGN_RSA_EMSA_PSS),
|
||||
#endif
|
||||
PLUGIN_PROVIDE(PRIVKEY_DECRYPT, ENCRYPT_RSA_PKCS1),
|
||||
PLUGIN_PROVIDE(PUBKEY_ENCRYPT, ENCRYPT_RSA_PKCS1),
|
||||
#ifdef BOTAN_HAS_EME_OAEP
|
||||
#ifdef BOTAN_HAS_SHA2_32
|
||||
PLUGIN_PROVIDE(PUBKEY_ENCRYPT, ENCRYPT_RSA_OAEP_SHA224),
|
||||
PLUGIN_PROVIDE(PUBKEY_ENCRYPT, ENCRYPT_RSA_OAEP_SHA256),
|
||||
#endif
|
||||
#ifdef BOTAN_HAS_SHA2_64
|
||||
PLUGIN_PROVIDE(PUBKEY_ENCRYPT, ENCRYPT_RSA_OAEP_SHA384),
|
||||
PLUGIN_PROVIDE(PUBKEY_ENCRYPT, ENCRYPT_RSA_OAEP_SHA512),
|
||||
#endif
|
||||
#endif
|
||||
#endif /* BOTAN_HAS_RSA */
|
||||
|
||||
#ifdef BOTAN_HAS_ECDSA
|
||||
/* EC private/public key loading */
|
||||
PLUGIN_REGISTER(PRIVKEY, botan_ec_private_key_load, TRUE),
|
||||
PLUGIN_PROVIDE(PRIVKEY, KEY_ECDSA),
|
||||
PLUGIN_REGISTER(PRIVKEY_GEN, botan_ec_private_key_gen, FALSE),
|
||||
PLUGIN_PROVIDE(PRIVKEY_GEN, KEY_ECDSA),
|
||||
PLUGIN_REGISTER(PUBKEY, botan_ec_public_key_load, TRUE),
|
||||
PLUGIN_PROVIDE(PUBKEY, KEY_ECDSA),
|
||||
#ifdef BOTAN_HAS_EMSA_RAW
|
||||
PLUGIN_PROVIDE(PRIVKEY_SIGN, SIGN_ECDSA_WITH_NULL),
|
||||
PLUGIN_PROVIDE(PUBKEY_VERIFY, SIGN_ECDSA_WITH_NULL),
|
||||
#endif
|
||||
#ifdef BOTAN_HAS_EMSA1
|
||||
#ifdef BOTAN_HAS_SHA1
|
||||
PLUGIN_PROVIDE(PRIVKEY_SIGN, SIGN_ECDSA_WITH_SHA1_DER),
|
||||
PLUGIN_PROVIDE(PUBKEY_VERIFY, SIGN_ECDSA_WITH_SHA1_DER),
|
||||
#endif
|
||||
#ifdef BOTAN_HAS_SHA2_32
|
||||
PLUGIN_PROVIDE(PRIVKEY_SIGN, SIGN_ECDSA_WITH_SHA256_DER),
|
||||
PLUGIN_PROVIDE(PUBKEY_VERIFY, SIGN_ECDSA_WITH_SHA256_DER),
|
||||
PLUGIN_PROVIDE(PRIVKEY_SIGN, SIGN_ECDSA_256),
|
||||
PLUGIN_PROVIDE(PUBKEY_VERIFY, SIGN_ECDSA_256),
|
||||
#endif
|
||||
#ifndef BOTAN_HAS_SHA2_64
|
||||
PLUGIN_PROVIDE(PRIVKEY_SIGN, SIGN_ECDSA_WITH_SHA384_DER),
|
||||
PLUGIN_PROVIDE(PRIVKEY_SIGN, SIGN_ECDSA_WITH_SHA512_DER),
|
||||
PLUGIN_PROVIDE(PUBKEY_VERIFY, SIGN_ECDSA_WITH_SHA384_DER),
|
||||
PLUGIN_PROVIDE(PUBKEY_VERIFY, SIGN_ECDSA_WITH_SHA512_DER),
|
||||
PLUGIN_PROVIDE(PRIVKEY_SIGN, SIGN_ECDSA_384),
|
||||
PLUGIN_PROVIDE(PRIVKEY_SIGN, SIGN_ECDSA_521),
|
||||
PLUGIN_PROVIDE(PUBKEY_VERIFY, SIGN_ECDSA_384),
|
||||
PLUGIN_PROVIDE(PUBKEY_VERIFY, SIGN_ECDSA_521),
|
||||
#endif
|
||||
#endif /* BOTAN_HAS_EMSA1 */
|
||||
#endif /* BOTAN_HAS_ECDSA */
|
||||
|
||||
/* random numbers */
|
||||
#if BOTAN_HAS_SYSTEM_RNG
|
||||
#if BOTAN_HAS_HMAC_DRBG
|
||||
PLUGIN_REGISTER(RNG, botan_rng_create),
|
||||
PLUGIN_PROVIDE(RNG, RNG_WEAK),
|
||||
PLUGIN_PROVIDE(RNG, RNG_STRONG),
|
||||
PLUGIN_PROVIDE(RNG, RNG_TRUE)
|
||||
#endif
|
||||
#endif
|
||||
};
|
||||
*features = f;
|
||||
return countof(f);
|
||||
}
|
||||
|
||||
METHOD(plugin_t, destroy, void,
|
||||
private_botan_plugin_t *this)
|
||||
{
|
||||
free(this);
|
||||
}
|
||||
|
||||
/*
|
||||
* see header file
|
||||
*/
|
||||
plugin_t *botan_plugin_create()
|
||||
{
|
||||
private_botan_plugin_t *this;
|
||||
|
||||
INIT(this,
|
||||
.public = {
|
||||
.plugin = {
|
||||
.get_name = _get_name,
|
||||
.get_features = _get_features,
|
||||
.destroy = _destroy,
|
||||
},
|
||||
},
|
||||
);
|
||||
|
||||
return &this->public.plugin;
|
||||
}
|
||||
|
|
@ -0,0 +1,50 @@
|
|||
/*
|
||||
* Copyright (C) 2018 René Korthaus
|
||||
* Rohde & Schwarz Cybersecurity GmbH
|
||||
*
|
||||
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
||||
* of this software and associated documentation files (the "Software"), to deal
|
||||
* in the Software without restriction, including without limitation the rights
|
||||
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
||||
* copies of the Software, and to permit persons to whom the Software is
|
||||
* furnished to do so, subject to the following conditions:
|
||||
*
|
||||
* The above copyright notice and this permission notice shall be included in
|
||||
* all copies or substantial portions of the Software.
|
||||
*
|
||||
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||||
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
||||
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||||
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
||||
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
||||
* THE SOFTWARE.
|
||||
*/
|
||||
|
||||
/**
|
||||
* @defgroup botan_p botan
|
||||
* @ingroup plugins
|
||||
*
|
||||
* @defgroup botan_plugin botan_plugin
|
||||
* @{ @ingroup botan_p
|
||||
*/
|
||||
|
||||
#ifndef BOTAN_PLUGIN_H_
|
||||
#define BOTAN_PLUGIN_H_
|
||||
|
||||
#include <plugins/plugin.h>
|
||||
|
||||
typedef struct botan_plugin_t botan_plugin_t;
|
||||
|
||||
/**
|
||||
* Plugin implementing crypto functions using Botan.
|
||||
*/
|
||||
struct botan_plugin_t {
|
||||
|
||||
/**
|
||||
* implements plugin interface
|
||||
*/
|
||||
plugin_t plugin;
|
||||
};
|
||||
|
||||
#endif /** BOTAN_PLUGIN_H_ @}*/
|
||||
|
|
@ -0,0 +1,128 @@
|
|||
/*
|
||||
* Copyright (C) 2018 René Korthaus
|
||||
* Rohde & Schwarz Cybersecurity GmbH
|
||||
*
|
||||
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
||||
* of this software and associated documentation files (the "Software"), to deal
|
||||
* in the Software without restriction, including without limitation the rights
|
||||
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
||||
* copies of the Software, and to permit persons to whom the Software is
|
||||
* furnished to do so, subject to the following conditions:
|
||||
*
|
||||
* The above copyright notice and this permission notice shall be included in
|
||||
* all copies or substantial portions of the Software.
|
||||
*
|
||||
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||||
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
||||
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||||
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
||||
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
||||
* THE SOFTWARE.
|
||||
*/
|
||||
|
||||
#include "botan_rng.h"
|
||||
|
||||
#include <botan/build.h>
|
||||
|
||||
#ifdef BOTAN_HAS_HMAC_DRBG
|
||||
|
||||
#include <botan/ffi.h>
|
||||
|
||||
typedef struct private_botan_random_t private_botan_random_t;
|
||||
|
||||
/**
|
||||
* Private data of an botan_rng_t object.
|
||||
*/
|
||||
struct private_botan_random_t {
|
||||
|
||||
/**
|
||||
* Public botan_rnd_t interface.
|
||||
*/
|
||||
botan_random_t public;
|
||||
|
||||
/**
|
||||
* RNG quality of this instance
|
||||
*/
|
||||
rng_quality_t quality;
|
||||
|
||||
/**
|
||||
* RNG type
|
||||
*/
|
||||
const char* rng_name;
|
||||
};
|
||||
|
||||
METHOD(rng_t, get_bytes, bool,
|
||||
private_botan_random_t *this, size_t bytes, uint8_t *buffer)
|
||||
{
|
||||
botan_rng_t rng;
|
||||
if (botan_rng_init(&rng, this->rng_name))
|
||||
{
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
if (botan_rng_get(rng, buffer, bytes))
|
||||
{
|
||||
botan_rng_destroy(rng);
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
botan_rng_destroy(rng);
|
||||
return TRUE;
|
||||
}
|
||||
|
||||
METHOD(rng_t, allocate_bytes, bool,
|
||||
private_botan_random_t *this, size_t bytes, chunk_t *chunk)
|
||||
{
|
||||
*chunk = chunk_alloc(bytes);
|
||||
if (!get_bytes(this, chunk->len, chunk->ptr))
|
||||
{
|
||||
chunk_free(chunk);
|
||||
return FALSE;
|
||||
}
|
||||
return TRUE;
|
||||
}
|
||||
|
||||
METHOD(rng_t, destroy, void,
|
||||
private_botan_random_t *this)
|
||||
{
|
||||
free(this);
|
||||
}
|
||||
|
||||
/*
|
||||
* Described in header.
|
||||
*/
|
||||
botan_random_t *botan_rng_create(rng_quality_t quality)
|
||||
{
|
||||
private_botan_random_t *this;
|
||||
const char* rng_name;
|
||||
|
||||
switch (quality)
|
||||
{
|
||||
case RNG_WEAK:
|
||||
case RNG_STRONG:
|
||||
rng_name = "user";
|
||||
break;
|
||||
case RNG_TRUE:
|
||||
rng_name = "system";
|
||||
break;
|
||||
default:
|
||||
return NULL;
|
||||
}
|
||||
|
||||
INIT(this,
|
||||
.public = {
|
||||
.rng = {
|
||||
.get_bytes = _get_bytes,
|
||||
.allocate_bytes = _allocate_bytes,
|
||||
.destroy = _destroy,
|
||||
},
|
||||
},
|
||||
.quality = quality,
|
||||
.rng_name = rng_name,
|
||||
);
|
||||
|
||||
return &this->public;
|
||||
}
|
||||
|
||||
#endif
|
||||
|
|
@ -0,0 +1,57 @@
|
|||
/*
|
||||
* Copyright (C) 2018 René Korthaus
|
||||
* Rohde & Schwarz Cybersecurity GmbH
|
||||
*
|
||||
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
||||
* of this software and associated documentation files (the "Software"), to deal
|
||||
* in the Software without restriction, including without limitation the rights
|
||||
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
||||
* copies of the Software, and to permit persons to whom the Software is
|
||||
* furnished to do so, subject to the following conditions:
|
||||
*
|
||||
* The above copyright notice and this permission notice shall be included in
|
||||
* all copies or substantial portions of the Software.
|
||||
*
|
||||
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||||
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
||||
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||||
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
||||
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
||||
* THE SOFTWARE.
|
||||
*/
|
||||
|
||||
/**
|
||||
* @defgroup botan_rng botan_rng
|
||||
* @{ @ingroup botan_p
|
||||
*/
|
||||
|
||||
#ifndef BOTAN_RNG_H_
|
||||
#define BOTAN_RNG_H_
|
||||
|
||||
typedef struct botan_random_t botan_random_t;
|
||||
|
||||
#include <library.h>
|
||||
|
||||
/**
|
||||
* rng_t implementation using botan.
|
||||
*
|
||||
* @note botan_rng_t is a botan reserved type.
|
||||
*/
|
||||
struct botan_random_t {
|
||||
|
||||
/**
|
||||
* Implements rng_t.
|
||||
*/
|
||||
rng_t rng;
|
||||
};
|
||||
|
||||
/**
|
||||
* Creates a botan_random_t instance.
|
||||
*
|
||||
* @param quality required quality of randomness
|
||||
* @return botan_random_t instance
|
||||
*/
|
||||
botan_random_t *botan_rng_create(rng_quality_t quality);
|
||||
|
||||
#endif /** BOTAN_RNG_H_ @} */
|
||||
|
|
@ -0,0 +1,964 @@
|
|||
/*
|
||||
* Copyright (C) 2018 René Korthaus
|
||||
* Rohde & Schwarz Cybersecurity GmbH
|
||||
*
|
||||
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
||||
* of this software and associated documentation files (the "Software"), to deal
|
||||
* in the Software without restriction, including without limitation the rights
|
||||
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
||||
* copies of the Software, and to permit persons to whom the Software is
|
||||
* furnished to do so, subject to the following conditions:
|
||||
*
|
||||
* The above copyright notice and this permission notice shall be included in
|
||||
* all copies or substantial portions of the Software.
|
||||
*
|
||||
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||||
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
||||
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||||
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
||||
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
||||
* THE SOFTWARE.
|
||||
*/
|
||||
|
||||
#include "botan_rsa_private_key.h"
|
||||
|
||||
#include <botan/build.h>
|
||||
|
||||
#ifdef BOTAN_HAS_RSA
|
||||
|
||||
#include "botan_util.h"
|
||||
|
||||
#include <botan/ffi.h>
|
||||
|
||||
#include <utils/debug.h>
|
||||
|
||||
typedef struct private_botan_rsa_private_key_t private_botan_rsa_private_key_t;
|
||||
|
||||
/**
|
||||
* Private data of a botan_rsa_private_key_t object.
|
||||
*/
|
||||
struct private_botan_rsa_private_key_t {
|
||||
/**
|
||||
* Public interface for this signer.
|
||||
*/
|
||||
botan_rsa_private_key_t public;
|
||||
|
||||
/**
|
||||
* Botan private key
|
||||
*/
|
||||
botan_privkey_t key;
|
||||
|
||||
|
||||
/**
|
||||
* reference count
|
||||
*/
|
||||
refcount_t ref;
|
||||
};
|
||||
|
||||
/**
|
||||
* Get the binary representation of a named RSA parameter
|
||||
*/
|
||||
static int botan_rsa_get_field(botan_privkey_t *key, const char *field_name,
|
||||
chunk_t *value)
|
||||
{
|
||||
botan_mp_t field;
|
||||
if (botan_mp_init(&field))
|
||||
{
|
||||
return -1;
|
||||
}
|
||||
|
||||
if (botan_privkey_get_field(field, *key, field_name))
|
||||
{
|
||||
botan_mp_destroy(field);
|
||||
return -1;
|
||||
}
|
||||
|
||||
size_t field_size = 0;
|
||||
if (botan_mp_num_bytes(field, &field_size))
|
||||
{
|
||||
botan_mp_destroy(field);
|
||||
return -1;
|
||||
}
|
||||
|
||||
if (field_size == 0)
|
||||
{
|
||||
botan_mp_destroy(field);
|
||||
return -1;
|
||||
}
|
||||
|
||||
*value = chunk_alloc(field_size);
|
||||
if (botan_mp_to_bin(field, value->ptr))
|
||||
{
|
||||
botan_mp_destroy(field);
|
||||
chunk_clear(value);
|
||||
return -1;
|
||||
}
|
||||
|
||||
botan_mp_destroy(field);
|
||||
return 0;
|
||||
}
|
||||
|
||||
/**
|
||||
* Build RSA signature
|
||||
*/
|
||||
static bool build_rsa_signature(private_botan_rsa_private_key_t *this,
|
||||
const char* hash_and_padding, chunk_t data, chunk_t* signature)
|
||||
{
|
||||
botan_pk_op_sign_t sign_op;
|
||||
|
||||
if (botan_pk_op_sign_create(&sign_op, this->key, hash_and_padding, 0))
|
||||
{
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
botan_rng_t rng;
|
||||
if (botan_rng_init(&rng, "user"))
|
||||
{
|
||||
botan_pk_op_sign_destroy(sign_op);
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
/* get size of signature first */
|
||||
if (botan_pk_op_sign_update(sign_op, data.ptr, data.len))
|
||||
{
|
||||
botan_rng_destroy(rng);
|
||||
botan_pk_op_sign_destroy(sign_op);
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
signature->len = 0;
|
||||
if (botan_pk_op_sign_finish(sign_op, rng, NULL, &signature->len)
|
||||
!= BOTAN_FFI_ERROR_INSUFFICIENT_BUFFER_SPACE)
|
||||
{
|
||||
botan_rng_destroy(rng);
|
||||
botan_pk_op_sign_destroy(sign_op);
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
/* now get the signature */
|
||||
*signature = chunk_alloc(signature->len);
|
||||
if (botan_pk_op_sign_update(sign_op, data.ptr, data.len))
|
||||
{
|
||||
chunk_free(signature);
|
||||
botan_rng_destroy(rng);
|
||||
botan_pk_op_sign_destroy(sign_op);
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
if (botan_pk_op_sign_finish(sign_op, rng, signature->ptr, &signature->len))
|
||||
{
|
||||
chunk_free(signature);
|
||||
botan_rng_destroy(rng);
|
||||
botan_pk_op_sign_destroy(sign_op);
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
botan_rng_destroy(rng);
|
||||
botan_pk_op_sign_destroy(sign_op);
|
||||
return TRUE;
|
||||
}
|
||||
|
||||
/**
|
||||
* Build an EMSA PKCS1 signature described in PKCS#1
|
||||
*/
|
||||
static bool build_emsa_pkcs1_signature(private_botan_rsa_private_key_t *this,
|
||||
const char* hash_and_padding, chunk_t data, chunk_t* signature)
|
||||
{
|
||||
return build_rsa_signature(this, hash_and_padding, data, signature);
|
||||
}
|
||||
|
||||
static bool botan_get_hash(hash_algorithm_t hash, char* hash_str)
|
||||
{
|
||||
switch (hash)
|
||||
{
|
||||
case HASH_SHA1:
|
||||
sprintf(hash_str, "SHA-1");
|
||||
break;
|
||||
case HASH_SHA224:
|
||||
sprintf(hash_str, "SHA-224");
|
||||
break;
|
||||
case HASH_SHA256:
|
||||
sprintf(hash_str, "SHA-256");
|
||||
break;
|
||||
case HASH_SHA384:
|
||||
sprintf(hash_str, "SHA-384");
|
||||
break;
|
||||
case HASH_SHA512:
|
||||
sprintf(hash_str, "SHA-512");
|
||||
break;
|
||||
default:
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
return TRUE;
|
||||
}
|
||||
|
||||
/**
|
||||
* Build an EMSA PSS signature described in PKCS#1
|
||||
*/
|
||||
static bool build_emsa_pss_signature(private_botan_rsa_private_key_t *this,
|
||||
rsa_pss_params_t *params, chunk_t data,
|
||||
chunk_t *sig)
|
||||
{
|
||||
char* hash_and_padding, *hash, *mgf1_hash;
|
||||
char* salt_len = NULL;
|
||||
size_t len;
|
||||
bool success = FALSE;
|
||||
|
||||
if (!params)
|
||||
{
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
/* botan currently does not support passing the mgf1 hash */
|
||||
if (params->hash != params->mgf1_hash)
|
||||
{
|
||||
DBG1(DBG_LIB, "passing mgf1 hash not supported via botan");
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
hash = malloc(8);
|
||||
if (!botan_get_hash(params->hash, hash))
|
||||
{
|
||||
free(hash);
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
mgf1_hash = malloc(8);
|
||||
if (!botan_get_hash(params->mgf1_hash, mgf1_hash))
|
||||
{
|
||||
free(hash);
|
||||
free(mgf1_hash);
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
if (params->salt_len > RSA_PSS_SALT_LEN_DEFAULT)
|
||||
{
|
||||
salt_len = malloc(6);
|
||||
snprintf(salt_len, 5, "%d", params->salt_len);
|
||||
}
|
||||
|
||||
len = 24 + strlen(hash) + strlen(mgf1_hash);
|
||||
hash_and_padding = malloc(len+1);
|
||||
|
||||
if (salt_len)
|
||||
{
|
||||
snprintf(hash_and_padding, len, "EMSA-PSS(%s,MGF1,%s)", hash, salt_len);
|
||||
}
|
||||
else
|
||||
{
|
||||
snprintf(hash_and_padding, len, "EMSA-PSS(%s,MGF1)", hash);
|
||||
}
|
||||
|
||||
if (build_rsa_signature(this, hash_and_padding, data, sig))
|
||||
{
|
||||
success = TRUE;
|
||||
}
|
||||
|
||||
if (salt_len)
|
||||
free(salt_len);
|
||||
free(hash);
|
||||
free(mgf1_hash);
|
||||
free(hash_and_padding);
|
||||
return success;
|
||||
}
|
||||
|
||||
METHOD(private_key_t, get_type, key_type_t,
|
||||
private_botan_rsa_private_key_t *this)
|
||||
{
|
||||
return KEY_RSA;
|
||||
}
|
||||
|
||||
METHOD(private_key_t, sign, bool,
|
||||
private_botan_rsa_private_key_t *this, signature_scheme_t scheme,
|
||||
void *params, chunk_t data, chunk_t *signature)
|
||||
{
|
||||
switch (scheme)
|
||||
{
|
||||
case SIGN_RSA_EMSA_PKCS1_NULL:
|
||||
return build_emsa_pkcs1_signature(this, "EMSA_PKCS1(Raw)", data,
|
||||
signature);
|
||||
case SIGN_RSA_EMSA_PKCS1_SHA1:
|
||||
return build_emsa_pkcs1_signature(this, "EMSA_PKCS1(SHA-1)", data,
|
||||
signature);
|
||||
case SIGN_RSA_EMSA_PKCS1_SHA2_224:
|
||||
return build_emsa_pkcs1_signature(this, "EMSA_PKCS1(SHA-224)", data,
|
||||
signature);
|
||||
case SIGN_RSA_EMSA_PKCS1_SHA2_256:
|
||||
return build_emsa_pkcs1_signature(this, "EMSA_PKCS1(SHA-256)", data,
|
||||
signature);
|
||||
case SIGN_RSA_EMSA_PKCS1_SHA2_384:
|
||||
return build_emsa_pkcs1_signature(this, "EMSA_PKCS1(SHA-384)", data,
|
||||
signature);
|
||||
case SIGN_RSA_EMSA_PKCS1_SHA2_512:
|
||||
return build_emsa_pkcs1_signature(this, "EMSA_PKCS1(SHA-512)", data,
|
||||
signature);
|
||||
case SIGN_RSA_EMSA_PSS:
|
||||
return build_emsa_pss_signature(this, params, data, signature);
|
||||
default:
|
||||
DBG1(DBG_LIB, "signature scheme %N not supported via botan",
|
||||
signature_scheme_names, scheme);
|
||||
return FALSE;
|
||||
}
|
||||
}
|
||||
|
||||
METHOD(private_key_t, decrypt, bool, private_botan_rsa_private_key_t *this,
|
||||
encryption_scheme_t scheme, chunk_t crypto, chunk_t *plain)
|
||||
{
|
||||
const char *padding;
|
||||
|
||||
switch (scheme)
|
||||
{
|
||||
case ENCRYPT_RSA_PKCS1:
|
||||
padding = "PKCS1v15";
|
||||
break;
|
||||
case ENCRYPT_RSA_OAEP_SHA1:
|
||||
padding = "OAEP(SHA-1)";
|
||||
break;
|
||||
case ENCRYPT_RSA_OAEP_SHA224:
|
||||
padding = "OAEP(SHA-224)";
|
||||
break;
|
||||
case ENCRYPT_RSA_OAEP_SHA256:
|
||||
padding = "OAEP(SHA-256)";
|
||||
break;
|
||||
case ENCRYPT_RSA_OAEP_SHA384:
|
||||
padding = "OAEP(SHA-384)";
|
||||
break;
|
||||
case ENCRYPT_RSA_OAEP_SHA512:
|
||||
padding = "OAEP(SHA-512)";
|
||||
break;
|
||||
default:
|
||||
DBG1(DBG_LIB, "encryption scheme %N not supported via botan",
|
||||
encryption_scheme_names, scheme);
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
botan_pk_op_decrypt_t decrypt_op;
|
||||
if (botan_pk_op_decrypt_create(&decrypt_op, this->key, padding, 0))
|
||||
{
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
/*
|
||||
* get size of plaintext first
|
||||
*/
|
||||
if (botan_pk_op_decrypt(decrypt_op, NULL, &plain->len, crypto.ptr,
|
||||
crypto.len)
|
||||
!= BOTAN_FFI_ERROR_INSUFFICIENT_BUFFER_SPACE)
|
||||
{
|
||||
botan_pk_op_decrypt_destroy(decrypt_op);
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
/*
|
||||
* now get the plaintext
|
||||
*/
|
||||
*plain = chunk_alloc(plain->len);
|
||||
if (botan_pk_op_decrypt(decrypt_op, plain->ptr, &plain->len, crypto.ptr,
|
||||
crypto.len))
|
||||
{
|
||||
chunk_free(plain);
|
||||
botan_pk_op_decrypt_destroy(decrypt_op);
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
botan_pk_op_decrypt_destroy(decrypt_op);
|
||||
return TRUE;
|
||||
}
|
||||
|
||||
METHOD(private_key_t, get_keysize, int,
|
||||
private_botan_rsa_private_key_t *this)
|
||||
{
|
||||
botan_mp_t n;
|
||||
if (botan_mp_init(&n))
|
||||
{
|
||||
return -1;
|
||||
}
|
||||
|
||||
if (botan_privkey_rsa_get_n(n, this->key))
|
||||
{
|
||||
return -1;
|
||||
}
|
||||
|
||||
size_t bits = 0;
|
||||
if (botan_mp_num_bits(n, &bits))
|
||||
{
|
||||
botan_mp_destroy(n);
|
||||
return -1;
|
||||
}
|
||||
|
||||
botan_mp_destroy(n);
|
||||
return bits;
|
||||
}
|
||||
|
||||
METHOD(private_key_t, get_public_key, public_key_t*,
|
||||
private_botan_rsa_private_key_t *this)
|
||||
{
|
||||
chunk_t n, e;
|
||||
|
||||
if (botan_rsa_get_field(&this->key, "n", &n))
|
||||
{
|
||||
return NULL;
|
||||
}
|
||||
|
||||
if (botan_rsa_get_field(&this->key, "e", &e))
|
||||
{
|
||||
chunk_clear(&n);
|
||||
return NULL;
|
||||
}
|
||||
|
||||
public_key_t *pub_key = lib->creds->create(lib->creds, CRED_PUBLIC_KEY,
|
||||
KEY_RSA, BUILD_RSA_MODULUS, n,
|
||||
BUILD_RSA_PUB_EXP, e, BUILD_END);
|
||||
|
||||
chunk_free(&n);
|
||||
chunk_free(&e);
|
||||
return pub_key;
|
||||
}
|
||||
|
||||
METHOD(private_key_t, get_fingerprint, bool,
|
||||
private_botan_rsa_private_key_t *this, cred_encoding_type_t type,
|
||||
chunk_t *fingerprint)
|
||||
{
|
||||
chunk_t n, e;
|
||||
bool success;
|
||||
|
||||
if (lib->encoding->get_cache(lib->encoding, type, &this->key, fingerprint))
|
||||
{
|
||||
return TRUE;
|
||||
}
|
||||
|
||||
if (botan_rsa_get_field(&this->key, "n", &n))
|
||||
{
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
if (botan_rsa_get_field(&this->key, "e", &e))
|
||||
{
|
||||
chunk_clear(&n);
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
success = lib->encoding->encode(lib->encoding, type, &this->key,
|
||||
fingerprint, CRED_PART_RSA_MODULUS, n,
|
||||
CRED_PART_RSA_PUB_EXP, e, CRED_PART_END);
|
||||
chunk_free(&n);
|
||||
chunk_free(&e);
|
||||
return success;
|
||||
|
||||
}
|
||||
|
||||
METHOD(private_key_t, get_encoding, bool,
|
||||
private_botan_rsa_private_key_t *this, cred_encoding_type_t type,
|
||||
chunk_t *encoding)
|
||||
{
|
||||
switch (type)
|
||||
{
|
||||
case PRIVKEY_ASN1_DER:
|
||||
case PRIVKEY_PEM:
|
||||
{
|
||||
bool success = TRUE;
|
||||
|
||||
uint32_t format = BOTAN_PRIVKEY_EXPORT_FLAG_DER;
|
||||
if (type == PRIVKEY_PEM)
|
||||
{
|
||||
format = BOTAN_PRIVKEY_EXPORT_FLAG_PEM;
|
||||
}
|
||||
|
||||
size_t bits = 0;
|
||||
if(botan_privkey_rsa_get_privkey(this->key, NULL, &bits, format))
|
||||
{
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
*encoding = chunk_alloc(bits);
|
||||
if(botan_privkey_rsa_get_privkey(this->key, encoding->ptr, &bits, format))
|
||||
{
|
||||
chunk_clear(encoding);
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
return success;
|
||||
}
|
||||
default:
|
||||
return FALSE;
|
||||
}
|
||||
}
|
||||
|
||||
METHOD(private_key_t, get_ref, private_key_t*,
|
||||
private_botan_rsa_private_key_t *this)
|
||||
{
|
||||
ref_get(&this->ref);
|
||||
return &this->public.key;
|
||||
}
|
||||
|
||||
METHOD(private_key_t, destroy, void,
|
||||
private_botan_rsa_private_key_t *this)
|
||||
{
|
||||
if (ref_put(&this->ref))
|
||||
{
|
||||
if (&this->key)
|
||||
{
|
||||
lib->encoding->clear_cache(lib->encoding, &this->key);
|
||||
botan_privkey_destroy(this->key);
|
||||
}
|
||||
free(this);
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Internal generic constructor
|
||||
*/
|
||||
static private_botan_rsa_private_key_t *create_empty()
|
||||
{
|
||||
private_botan_rsa_private_key_t *this;
|
||||
|
||||
INIT(this,
|
||||
.public = {
|
||||
.key = {
|
||||
.get_type = _get_type,
|
||||
.sign = _sign,
|
||||
.decrypt = _decrypt,
|
||||
.get_keysize = _get_keysize,
|
||||
.get_public_key = _get_public_key,
|
||||
.equals = private_key_equals,
|
||||
.belongs_to = private_key_belongs_to,
|
||||
.get_fingerprint = _get_fingerprint,
|
||||
.has_fingerprint = private_key_has_fingerprint,
|
||||
.get_encoding = _get_encoding,
|
||||
.get_ref = _get_ref,
|
||||
.destroy = _destroy,
|
||||
},
|
||||
},
|
||||
.ref = 1,
|
||||
);
|
||||
|
||||
return this;
|
||||
}
|
||||
|
||||
/*
|
||||
* See header.
|
||||
*/
|
||||
botan_rsa_private_key_t *botan_rsa_private_key_gen(key_type_t type,
|
||||
va_list args)
|
||||
{
|
||||
private_botan_rsa_private_key_t *this;
|
||||
|
||||
u_int key_size = 0;
|
||||
|
||||
while (TRUE)
|
||||
{
|
||||
switch (va_arg(args, builder_part_t))
|
||||
{
|
||||
case BUILD_KEY_SIZE:
|
||||
key_size = va_arg(args, u_int);
|
||||
continue;
|
||||
case BUILD_END:
|
||||
break;
|
||||
default:
|
||||
return NULL;
|
||||
}
|
||||
break;
|
||||
}
|
||||
|
||||
if (!key_size)
|
||||
{
|
||||
return NULL;
|
||||
}
|
||||
|
||||
botan_rng_t rng;
|
||||
if (botan_rng_init(&rng, "user"))
|
||||
{
|
||||
return NULL;
|
||||
}
|
||||
|
||||
this = create_empty();
|
||||
|
||||
if(botan_privkey_create_rsa(&this->key, rng, key_size))
|
||||
{
|
||||
botan_rng_destroy(rng);
|
||||
destroy(this);
|
||||
return NULL;
|
||||
}
|
||||
|
||||
botan_rng_destroy(rng);
|
||||
return &this->public;
|
||||
}
|
||||
|
||||
/**
|
||||
* Recover the primes from n, e and d using the algorithm described in
|
||||
* Appendix C of NIST SP 800-56B.
|
||||
*/
|
||||
static bool calculate_pq(botan_mp_t *n, botan_mp_t *e, botan_mp_t *d,
|
||||
botan_mp_t *p, botan_mp_t *q)
|
||||
{
|
||||
botan_mp_t k, one, r, zero, two, n1, x, y, g, rem;
|
||||
int i, t, j;
|
||||
bool success = TRUE;
|
||||
|
||||
if (botan_mp_init(&k))
|
||||
{
|
||||
success = FALSE;
|
||||
goto error;
|
||||
}
|
||||
|
||||
if (botan_mp_init(&one))
|
||||
{
|
||||
success = FALSE;
|
||||
goto error;
|
||||
}
|
||||
|
||||
if (botan_mp_set_from_int(one, 1))
|
||||
{
|
||||
success = FALSE;
|
||||
goto error;
|
||||
}
|
||||
|
||||
/* 1. k = de - 1 */
|
||||
if (botan_mp_mul(k, *d, *e) || botan_mp_sub(k, k, one))
|
||||
{
|
||||
success = FALSE;
|
||||
goto error;
|
||||
}
|
||||
|
||||
/* k must be even */
|
||||
if (!botan_mp_is_even(k))
|
||||
{
|
||||
success = FALSE;
|
||||
goto error;
|
||||
}
|
||||
|
||||
/* 2. k = 2^t * r, where r is the largest odd integer dividing k, and t >= 1 */
|
||||
if (botan_mp_init(&r))
|
||||
{
|
||||
success = FALSE;
|
||||
goto error;
|
||||
}
|
||||
|
||||
if (botan_mp_set_from_mp(r, k))
|
||||
{
|
||||
success = FALSE;
|
||||
goto error;
|
||||
}
|
||||
|
||||
for (t = 0; !botan_mp_is_odd(r); t++)
|
||||
{
|
||||
if (botan_mp_rshift(r, r, 1))
|
||||
{
|
||||
success = FALSE;
|
||||
goto error;
|
||||
}
|
||||
}
|
||||
|
||||
/* need 0, 2, n-1 below */
|
||||
if (botan_mp_init(&zero))
|
||||
{
|
||||
success = FALSE;
|
||||
goto error;
|
||||
}
|
||||
|
||||
if (botan_mp_set_from_int(zero, 0))
|
||||
{
|
||||
success = FALSE;
|
||||
goto error;
|
||||
}
|
||||
|
||||
if (botan_mp_init(&n1))
|
||||
{
|
||||
success = FALSE;
|
||||
goto error;
|
||||
}
|
||||
|
||||
if (botan_mp_sub(n1, *n, one))
|
||||
{
|
||||
success = FALSE;
|
||||
goto error;
|
||||
}
|
||||
|
||||
if (botan_mp_init(&g))
|
||||
{
|
||||
success = FALSE;
|
||||
goto error;
|
||||
}
|
||||
|
||||
botan_rng_t rng;
|
||||
if (botan_rng_init(&rng, "user"))
|
||||
{
|
||||
success = FALSE;
|
||||
goto error;
|
||||
}
|
||||
|
||||
if (botan_mp_init(&two))
|
||||
{
|
||||
success = FALSE;
|
||||
goto error;
|
||||
}
|
||||
|
||||
if (botan_mp_set_from_int(two, 2))
|
||||
{
|
||||
success = FALSE;
|
||||
goto error;
|
||||
}
|
||||
|
||||
for (i = 0; i < 100; i++)
|
||||
{
|
||||
/* 3a. generate a random integer g in the range [0, n-1] */
|
||||
if (botan_mp_rand_range(g, rng, zero, n1))
|
||||
{
|
||||
success = FALSE;
|
||||
goto error;
|
||||
}
|
||||
|
||||
/* 3b. y = g^r mod n */
|
||||
if (botan_mp_init(&y))
|
||||
{
|
||||
success = FALSE;
|
||||
goto error;
|
||||
}
|
||||
|
||||
if (botan_mp_powmod(y, g, r, *n))
|
||||
{
|
||||
success = FALSE;
|
||||
goto error;
|
||||
}
|
||||
|
||||
/* 3c. If y = 1 or y = n – 1, try again */
|
||||
if (botan_mp_equal(y, one) || botan_mp_equal(y, n1))
|
||||
{
|
||||
continue;
|
||||
}
|
||||
|
||||
if (botan_mp_init(&x))
|
||||
{
|
||||
success = FALSE;
|
||||
goto error;
|
||||
}
|
||||
|
||||
for (j = 0; j < t; j++)
|
||||
{
|
||||
/* x = y^2 mod n */
|
||||
if (botan_mp_powmod(x, y, two, *n))
|
||||
{
|
||||
success = FALSE;
|
||||
goto error;
|
||||
}
|
||||
|
||||
/* stop if x == 1 */
|
||||
if (botan_mp_equal(x, one))
|
||||
{
|
||||
goto done;
|
||||
}
|
||||
|
||||
/* retry with new g if x = n-1 */
|
||||
if (botan_mp_equal(x, n1))
|
||||
{
|
||||
break;
|
||||
}
|
||||
|
||||
/* let y = x */
|
||||
if(botan_mp_set_from_mp(y, x))
|
||||
{
|
||||
success = FALSE;
|
||||
goto error;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
done:
|
||||
/* 5. p = GCD(y – 1, n) and q = n/p */
|
||||
if (botan_mp_sub(y, y, one))
|
||||
{
|
||||
success = FALSE;
|
||||
goto error;
|
||||
}
|
||||
|
||||
if (botan_mp_init(p))
|
||||
{
|
||||
success = FALSE;
|
||||
goto error;
|
||||
}
|
||||
|
||||
if (botan_mp_gcd(*p, y, *n))
|
||||
{
|
||||
success = FALSE;
|
||||
goto error;
|
||||
}
|
||||
|
||||
if (botan_mp_init(q))
|
||||
{
|
||||
success = FALSE;
|
||||
goto error;
|
||||
}
|
||||
|
||||
if (botan_mp_init(&rem))
|
||||
{
|
||||
success = FALSE;
|
||||
goto error;
|
||||
}
|
||||
|
||||
if (botan_mp_div(*q, rem, *n, *p))
|
||||
{
|
||||
success = FALSE;
|
||||
goto error;
|
||||
}
|
||||
|
||||
if (!botan_mp_is_zero(rem))
|
||||
{
|
||||
success = FALSE;
|
||||
goto error;
|
||||
}
|
||||
|
||||
error:
|
||||
if (!success)
|
||||
{
|
||||
botan_mp_destroy(*p);
|
||||
botan_mp_destroy(*q);
|
||||
}
|
||||
|
||||
botan_mp_destroy(k);
|
||||
botan_mp_destroy(one);
|
||||
botan_mp_destroy(r);
|
||||
botan_mp_destroy(zero);
|
||||
botan_mp_destroy(two);
|
||||
botan_mp_destroy(n1);
|
||||
botan_mp_destroy(x);
|
||||
botan_mp_destroy(y);
|
||||
botan_mp_destroy(rem);
|
||||
return success;
|
||||
}
|
||||
|
||||
/*
|
||||
* See header
|
||||
*/
|
||||
botan_rsa_private_key_t *botan_rsa_private_key_load(key_type_t type,
|
||||
va_list args)
|
||||
{
|
||||
private_botan_rsa_private_key_t *this;
|
||||
chunk_t n, e, d, p, q, blob;
|
||||
|
||||
n = e = d = p = q = blob = chunk_empty;
|
||||
while (TRUE)
|
||||
{
|
||||
switch (va_arg(args, builder_part_t))
|
||||
{
|
||||
case BUILD_BLOB_ASN1_DER:
|
||||
blob = va_arg(args, chunk_t);
|
||||
continue;
|
||||
case BUILD_RSA_MODULUS:
|
||||
n = va_arg(args, chunk_t);
|
||||
continue;
|
||||
case BUILD_RSA_PUB_EXP:
|
||||
e = va_arg(args, chunk_t);
|
||||
continue;
|
||||
case BUILD_RSA_PRIV_EXP:
|
||||
d = va_arg(args, chunk_t);
|
||||
continue;
|
||||
case BUILD_RSA_PRIME1:
|
||||
p = va_arg(args, chunk_t);
|
||||
continue;
|
||||
case BUILD_RSA_PRIME2:
|
||||
q = va_arg(args, chunk_t);
|
||||
continue;
|
||||
case BUILD_RSA_EXP1:
|
||||
case BUILD_RSA_EXP2:
|
||||
case BUILD_RSA_COEFF:
|
||||
/* not required for botan */
|
||||
va_arg(args, chunk_t);
|
||||
continue;
|
||||
case BUILD_END:
|
||||
break;
|
||||
default:
|
||||
return NULL;
|
||||
}
|
||||
break;
|
||||
}
|
||||
|
||||
if (blob.ptr)
|
||||
{
|
||||
this = create_empty();
|
||||
|
||||
if (botan_privkey_load_rsa_pkcs1(&this->key, blob.ptr, blob.len))
|
||||
{
|
||||
destroy(this);
|
||||
return NULL;
|
||||
}
|
||||
|
||||
return &this->public;
|
||||
}
|
||||
|
||||
if (n.ptr && e.ptr && d.ptr)
|
||||
{
|
||||
botan_mp_t n_mp, e_mp, d_mp;
|
||||
if (chunk_to_botan_mp(n, &n_mp))
|
||||
{
|
||||
return NULL;
|
||||
}
|
||||
|
||||
if (chunk_to_botan_mp(e, &e_mp))
|
||||
{
|
||||
botan_mp_destroy(n_mp);
|
||||
return NULL;
|
||||
}
|
||||
|
||||
if (chunk_to_botan_mp(d, &d_mp))
|
||||
{
|
||||
botan_mp_destroy(n_mp);
|
||||
botan_mp_destroy(e_mp);
|
||||
return NULL;
|
||||
}
|
||||
|
||||
botan_mp_t p_mp, q_mp;
|
||||
if (p.ptr && q.ptr)
|
||||
{
|
||||
if (chunk_to_botan_mp(p, &p_mp))
|
||||
{
|
||||
botan_mp_destroy(n_mp);
|
||||
botan_mp_destroy(e_mp);
|
||||
botan_mp_destroy(d_mp);
|
||||
return NULL;
|
||||
}
|
||||
|
||||
if (chunk_to_botan_mp(q, &q_mp))
|
||||
{
|
||||
botan_mp_destroy(n_mp);
|
||||
botan_mp_destroy(e_mp);
|
||||
botan_mp_destroy(d_mp);
|
||||
botan_mp_destroy(p_mp);
|
||||
return NULL;
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
// calculate p,q from n, e, d
|
||||
if (!calculate_pq(&n_mp, &e_mp, &d_mp, &p_mp, &q_mp))
|
||||
{
|
||||
botan_mp_destroy(n_mp);
|
||||
botan_mp_destroy(e_mp);
|
||||
botan_mp_destroy(d_mp);
|
||||
return NULL;
|
||||
}
|
||||
}
|
||||
|
||||
this = create_empty();
|
||||
|
||||
if (botan_privkey_load_rsa(&this->key, p_mp, q_mp, e_mp))
|
||||
{
|
||||
botan_mp_destroy(e_mp);
|
||||
botan_mp_destroy(p_mp);
|
||||
botan_mp_destroy(q_mp);
|
||||
destroy(this);
|
||||
return NULL;
|
||||
}
|
||||
|
||||
botan_mp_destroy(e_mp);
|
||||
botan_mp_destroy(p_mp);
|
||||
botan_mp_destroy(q_mp);
|
||||
|
||||
return &this->public;
|
||||
}
|
||||
|
||||
return NULL;
|
||||
}
|
||||
|
||||
#endif
|
||||
|
|
@ -0,0 +1,72 @@
|
|||
/*
|
||||
* Copyright (C) 2018 René Korthaus
|
||||
* Rohde & Schwarz Cybersecurity GmbH
|
||||
*
|
||||
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
||||
* of this software and associated documentation files (the "Software"), to deal
|
||||
* in the Software without restriction, including without limitation the rights
|
||||
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
||||
* copies of the Software, and to permit persons to whom the Software is
|
||||
* furnished to do so, subject to the following conditions:
|
||||
*
|
||||
* The above copyright notice and this permission notice shall be included in
|
||||
* all copies or substantial portions of the Software.
|
||||
*
|
||||
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||||
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
||||
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||||
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
||||
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
||||
* THE SOFTWARE.
|
||||
*/
|
||||
|
||||
/**
|
||||
* @defgroup botan_rsa_private_key botan_rsa_private_key
|
||||
* @{ @ingroup botan_p
|
||||
*/
|
||||
|
||||
#ifndef BOTAN_RSA_PRIVATE_KEY_H_
|
||||
#define BOTAN_RSA_PRIVATE_KEY_H_
|
||||
|
||||
#include <credentials/builder.h>
|
||||
#include <credentials/keys/private_key.h>
|
||||
|
||||
typedef struct botan_rsa_private_key_t botan_rsa_private_key_t;
|
||||
|
||||
/**
|
||||
* private_key_t implementation of RSA algorithm using Botan.
|
||||
*/
|
||||
struct botan_rsa_private_key_t {
|
||||
|
||||
/**
|
||||
* Implements private_key_t interface
|
||||
*/
|
||||
private_key_t key;
|
||||
};
|
||||
|
||||
/**
|
||||
* Generate a RSA private key using Botan.
|
||||
*
|
||||
* Accepts the BUILD_KEY_SIZE argument.
|
||||
*
|
||||
* @param type type of the key, must be KEY_RSA
|
||||
* @param args builder_part_t argument list
|
||||
* @return generated key, NULL on failure
|
||||
*/
|
||||
botan_rsa_private_key_t *botan_rsa_private_key_gen(key_type_t type,
|
||||
va_list args);
|
||||
|
||||
/**
|
||||
* Load a RSA private key using Botan.
|
||||
*
|
||||
* Accepts a BUILD_BLOB_ASN1_DER argument.
|
||||
*
|
||||
* @param type type of the key, must be KEY_RSA
|
||||
* @param args builder_part_t argument list
|
||||
* @return loaded key, NULL on failure
|
||||
*/
|
||||
botan_rsa_private_key_t *botan_rsa_private_key_load(key_type_t type,
|
||||
va_list args);
|
||||
|
||||
#endif /** BOTAN_RSA_PRIVATE_KEY_H_ @}*/
|
||||
|
|
@ -0,0 +1,601 @@
|
|||
/*
|
||||
* Copyright (C) 2018 René Korthaus
|
||||
* Rohde & Schwarz Cybersecurity GmbH
|
||||
*
|
||||
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
||||
* of this software and associated documentation files (the "Software"), to deal
|
||||
* in the Software without restriction, including without limitation the rights
|
||||
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
||||
* copies of the Software, and to permit persons to whom the Software is
|
||||
* furnished to do so, subject to the following conditions:
|
||||
*
|
||||
* The above copyright notice and this permission notice shall be included in
|
||||
* all copies or substantial portions of the Software.
|
||||
*
|
||||
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||||
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
||||
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||||
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
||||
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
||||
* THE SOFTWARE.
|
||||
*/
|
||||
|
||||
#include "botan_rsa_public_key.h"
|
||||
|
||||
#include <botan/build.h>
|
||||
|
||||
#ifdef BOTAN_HAS_RSA
|
||||
|
||||
#include "botan_util.h"
|
||||
|
||||
#include <asn1/oid.h>
|
||||
#include <asn1/asn1.h>
|
||||
#include <asn1/asn1_parser.h>
|
||||
|
||||
#include <utils/debug.h>
|
||||
|
||||
#include <botan/ffi.h>
|
||||
|
||||
typedef struct private_botan_rsa_public_key_t private_botan_rsa_public_key_t;
|
||||
|
||||
/**
|
||||
* Private data structure with signing context.
|
||||
*/
|
||||
struct private_botan_rsa_public_key_t {
|
||||
/**
|
||||
* Public interface for this signer
|
||||
*/
|
||||
botan_rsa_public_key_t public;
|
||||
|
||||
/**
|
||||
* Botan public key
|
||||
*/
|
||||
botan_pubkey_t key;
|
||||
|
||||
/**
|
||||
* Reference counter
|
||||
*/
|
||||
refcount_t ref;
|
||||
};
|
||||
|
||||
/**
|
||||
* Get the binary representation of a named RSA parameter
|
||||
*/
|
||||
static int botan_rsa_get_field(botan_pubkey_t *key, const char *field_name,
|
||||
chunk_t *value)
|
||||
{
|
||||
botan_mp_t field;
|
||||
size_t field_size = 0;
|
||||
|
||||
if (botan_mp_init(&field))
|
||||
{
|
||||
return -1;
|
||||
}
|
||||
|
||||
if (botan_pubkey_get_field(field, *key, field_name))
|
||||
{
|
||||
return -1;
|
||||
}
|
||||
|
||||
if (botan_mp_num_bytes(field, &field_size))
|
||||
{
|
||||
botan_mp_destroy(field);
|
||||
return -1;
|
||||
}
|
||||
|
||||
if (field_size == 0)
|
||||
{
|
||||
botan_mp_destroy(field);
|
||||
return -1;
|
||||
}
|
||||
|
||||
*value = chunk_empty;
|
||||
*value = chunk_alloc(field_size);
|
||||
if (botan_mp_to_bin(field, value->ptr))
|
||||
{
|
||||
botan_mp_destroy(field);
|
||||
chunk_clear(value);
|
||||
return -1;
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
/**
|
||||
* Verify RSA signature
|
||||
*/
|
||||
static bool verify_rsa_signature(private_botan_rsa_public_key_t *this,
|
||||
const char* hash_and_padding, chunk_t data, chunk_t signature)
|
||||
{
|
||||
botan_pk_op_verify_t verify_op;
|
||||
bool valid = FALSE;
|
||||
|
||||
if (botan_pk_op_verify_create(&verify_op, this->key, hash_and_padding, 0))
|
||||
{
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
if (botan_pk_op_verify_update(verify_op, data.ptr, data.len))
|
||||
{
|
||||
botan_pk_op_verify_destroy(verify_op);
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
valid =
|
||||
!(botan_pk_op_verify_finish(verify_op, signature.ptr, signature.len));
|
||||
|
||||
botan_pk_op_verify_destroy(verify_op);
|
||||
return valid;
|
||||
}
|
||||
|
||||
/**
|
||||
* Verification of an EMSA PKCS1 signature described in PKCS#1
|
||||
*/
|
||||
static bool verify_emsa_pkcs1_signature(private_botan_rsa_public_key_t *this,
|
||||
const char* hash_and_padding, chunk_t data, chunk_t signature)
|
||||
{
|
||||
return verify_rsa_signature(this, hash_and_padding, data, signature);
|
||||
}
|
||||
|
||||
static bool botan_get_hash(hash_algorithm_t hash, char* hash_str)
|
||||
{
|
||||
switch (hash)
|
||||
{
|
||||
case HASH_SHA1:
|
||||
sprintf(hash_str, "SHA-1");
|
||||
break;
|
||||
case HASH_SHA224:
|
||||
sprintf(hash_str, "SHA-224");
|
||||
break;
|
||||
case HASH_SHA256:
|
||||
sprintf(hash_str, "SHA-256");
|
||||
break;
|
||||
case HASH_SHA384:
|
||||
sprintf(hash_str, "SHA-384");
|
||||
break;
|
||||
case HASH_SHA512:
|
||||
sprintf(hash_str, "SHA-512");
|
||||
break;
|
||||
default:
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
return TRUE;
|
||||
}
|
||||
|
||||
/**
|
||||
* Verification of an EMSA PSS signature described in PKCS#1
|
||||
*/
|
||||
static bool verify_emsa_pss_signature(private_botan_rsa_public_key_t *this,
|
||||
rsa_pss_params_t *params, chunk_t data,
|
||||
chunk_t signature)
|
||||
{
|
||||
char* hash_and_padding, *hash, *mgf1_hash;
|
||||
char* salt_len = NULL;
|
||||
size_t len;
|
||||
bool success = FALSE;
|
||||
|
||||
if (!params)
|
||||
{
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
// botan currently does not support passing the mgf1 hash
|
||||
if (params->hash != params->mgf1_hash)
|
||||
{
|
||||
DBG1(DBG_LIB, "passing mgf1 hash not supported via botan");
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
hash = malloc(8);
|
||||
if(!botan_get_hash(params->hash, hash))
|
||||
{
|
||||
free(hash);
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
mgf1_hash = malloc(8);
|
||||
if(!botan_get_hash(params->mgf1_hash, mgf1_hash))
|
||||
{
|
||||
free(hash);
|
||||
free(mgf1_hash);
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
if(params->salt_len > RSA_PSS_SALT_LEN_DEFAULT)
|
||||
{
|
||||
salt_len = malloc(6);
|
||||
snprintf(salt_len, 5, "%d", params->salt_len);
|
||||
}
|
||||
|
||||
len = 24 + strlen(hash) + strlen(mgf1_hash);
|
||||
hash_and_padding = malloc(len+1);
|
||||
|
||||
if(salt_len)
|
||||
{
|
||||
snprintf(hash_and_padding, len, "EMSA-PSS(%s,MGF1,%s)", hash, salt_len);
|
||||
}
|
||||
else
|
||||
{
|
||||
snprintf(hash_and_padding, len, "EMSA-PSS(%s,MGF1)", hash);
|
||||
}
|
||||
|
||||
if (verify_rsa_signature(this, hash_and_padding, data, signature))
|
||||
{
|
||||
success = TRUE;
|
||||
}
|
||||
|
||||
if(salt_len)
|
||||
free(salt_len);
|
||||
free(hash);
|
||||
free(mgf1_hash);
|
||||
free(hash_and_padding);
|
||||
return success;
|
||||
}
|
||||
|
||||
METHOD(public_key_t, get_type, key_type_t,
|
||||
private_botan_rsa_public_key_t *this)
|
||||
{
|
||||
return KEY_RSA;
|
||||
}
|
||||
|
||||
METHOD(public_key_t, verify, bool,
|
||||
private_botan_rsa_public_key_t *this, signature_scheme_t scheme,
|
||||
void *params, chunk_t data, chunk_t signature)
|
||||
{
|
||||
switch (scheme)
|
||||
{
|
||||
case SIGN_RSA_EMSA_PKCS1_NULL:
|
||||
return verify_emsa_pkcs1_signature(this, "EMSA_PKCS1(Raw)", data,
|
||||
signature);
|
||||
case SIGN_RSA_EMSA_PKCS1_SHA1:
|
||||
return verify_emsa_pkcs1_signature(this, "EMSA_PKCS1(SHA-1)", data,
|
||||
signature);
|
||||
case SIGN_RSA_EMSA_PKCS1_SHA2_224:
|
||||
return verify_emsa_pkcs1_signature(this, "EMSA_PKCS1(SHA-224)",
|
||||
data, signature);
|
||||
case SIGN_RSA_EMSA_PKCS1_SHA2_256:
|
||||
return verify_emsa_pkcs1_signature(this, "EMSA_PKCS1(SHA-256)",
|
||||
data, signature);
|
||||
case SIGN_RSA_EMSA_PKCS1_SHA2_384:
|
||||
return verify_emsa_pkcs1_signature(this, "EMSA_PKCS1(SHA-384)",
|
||||
data, signature);
|
||||
case SIGN_RSA_EMSA_PKCS1_SHA2_512:
|
||||
return verify_emsa_pkcs1_signature(this, "EMSA_PKCS1(SHA-512)",
|
||||
data, signature);
|
||||
case SIGN_RSA_EMSA_PSS:
|
||||
return verify_emsa_pss_signature(this, params, data, signature);
|
||||
default:
|
||||
DBG1(DBG_LIB, "signature scheme %N not supported via botan",
|
||||
signature_scheme_names, scheme);
|
||||
return FALSE;
|
||||
}
|
||||
}
|
||||
|
||||
METHOD(public_key_t, encrypt, bool,
|
||||
private_botan_rsa_public_key_t *this, encryption_scheme_t scheme,
|
||||
chunk_t plain, chunk_t *crypto)
|
||||
{
|
||||
const char* padding;
|
||||
|
||||
switch (scheme)
|
||||
{
|
||||
case ENCRYPT_RSA_PKCS1:
|
||||
padding = "PKCS1v15";
|
||||
break;
|
||||
case ENCRYPT_RSA_OAEP_SHA1:
|
||||
padding = "OAEP(SHA-1)";
|
||||
break;
|
||||
case ENCRYPT_RSA_OAEP_SHA224:
|
||||
padding = "OAEP(SHA-224)";
|
||||
break;
|
||||
case ENCRYPT_RSA_OAEP_SHA256:
|
||||
padding = "OAEP(SHA-256)";
|
||||
break;
|
||||
case ENCRYPT_RSA_OAEP_SHA384:
|
||||
padding = "OAEP(SHA-384)";
|
||||
break;
|
||||
case ENCRYPT_RSA_OAEP_SHA512:
|
||||
padding = "OAEP(SHA-512)";
|
||||
break;
|
||||
default:
|
||||
DBG1(DBG_LIB, "encryption scheme %N not supported via botan",
|
||||
encryption_scheme_names, scheme);
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
botan_rng_t rng;
|
||||
if (botan_rng_init(&rng, "user"))
|
||||
{
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
botan_pk_op_encrypt_t encrypt_op;
|
||||
if (botan_pk_op_encrypt_create(&encrypt_op, this->key, padding, 0))
|
||||
{
|
||||
botan_rng_destroy(rng);
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
/*
|
||||
* get size of ciphertext first
|
||||
*/
|
||||
if (botan_pk_op_encrypt(encrypt_op, rng, NULL, &crypto->len, plain.ptr,
|
||||
plain.len)
|
||||
!= BOTAN_FFI_ERROR_INSUFFICIENT_BUFFER_SPACE)
|
||||
{
|
||||
botan_rng_destroy(rng);
|
||||
botan_pk_op_encrypt_destroy(encrypt_op);
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
/*
|
||||
* now get the ciphertext
|
||||
*/
|
||||
*crypto = chunk_alloc(crypto->len);
|
||||
if (botan_pk_op_encrypt(encrypt_op, rng, crypto->ptr, &crypto->len,
|
||||
plain.ptr, plain.len))
|
||||
{
|
||||
chunk_free(crypto);
|
||||
botan_rng_destroy(rng);
|
||||
botan_pk_op_encrypt_destroy(encrypt_op);
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
botan_rng_destroy(rng);
|
||||
botan_pk_op_encrypt_destroy(encrypt_op);
|
||||
return TRUE;
|
||||
}
|
||||
|
||||
METHOD(public_key_t, get_keysize, int,
|
||||
private_botan_rsa_public_key_t *this)
|
||||
{
|
||||
botan_mp_t n;
|
||||
size_t bits = 0;
|
||||
|
||||
if (botan_mp_init(&n))
|
||||
{
|
||||
return -1;
|
||||
}
|
||||
|
||||
if (botan_pubkey_rsa_get_n(n, this->key))
|
||||
{
|
||||
return -1;
|
||||
}
|
||||
|
||||
if (botan_mp_num_bits(n, &bits))
|
||||
{
|
||||
botan_mp_destroy(n);
|
||||
return -1;
|
||||
}
|
||||
|
||||
botan_mp_destroy(n);
|
||||
return bits;
|
||||
}
|
||||
|
||||
METHOD(public_key_t, get_fingerprint, bool,
|
||||
private_botan_rsa_public_key_t *this, cred_encoding_type_t type,
|
||||
chunk_t *fp)
|
||||
{
|
||||
chunk_t n, e;
|
||||
bool success = FALSE;
|
||||
|
||||
if (lib->encoding->get_cache(lib->encoding, type, &this->key, fp))
|
||||
{
|
||||
return TRUE;
|
||||
}
|
||||
|
||||
if (botan_rsa_get_field(&this->key, "n", &n))
|
||||
{
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
if (botan_rsa_get_field(&this->key, "e", &e))
|
||||
{
|
||||
chunk_free(&n);
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
success = lib->encoding->encode(lib->encoding, type, &this->key, fp,
|
||||
CRED_PART_RSA_MODULUS, n,
|
||||
CRED_PART_RSA_PUB_EXP, e, CRED_PART_END);
|
||||
|
||||
chunk_free(&n);
|
||||
chunk_free(&e);
|
||||
return success;
|
||||
}
|
||||
|
||||
METHOD(public_key_t, get_encoding, bool,
|
||||
private_botan_rsa_public_key_t *this, cred_encoding_type_t type,
|
||||
chunk_t *encoding)
|
||||
{
|
||||
chunk_t n, e;
|
||||
bool success = FALSE;
|
||||
|
||||
if (botan_rsa_get_field(&this->key, "n", &n))
|
||||
{
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
if (botan_rsa_get_field(&this->key, "e", &e))
|
||||
{
|
||||
chunk_free(&n);
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
success = lib->encoding->encode(lib->encoding, type, NULL, encoding,
|
||||
CRED_PART_RSA_MODULUS, n,
|
||||
CRED_PART_RSA_PUB_EXP, e, CRED_PART_END);
|
||||
|
||||
chunk_free(&n);
|
||||
chunk_free(&e);
|
||||
return success;
|
||||
}
|
||||
|
||||
METHOD(public_key_t, get_ref, public_key_t*,
|
||||
private_botan_rsa_public_key_t *this)
|
||||
{
|
||||
ref_get(&this->ref);
|
||||
return &this->public.key;
|
||||
}
|
||||
|
||||
METHOD(public_key_t, destroy, void,
|
||||
private_botan_rsa_public_key_t *this)
|
||||
{
|
||||
if (ref_put(&this->ref))
|
||||
{
|
||||
if (&this->key)
|
||||
{
|
||||
lib->encoding->clear_cache(lib->encoding, &this->key);
|
||||
botan_pubkey_destroy(this->key);
|
||||
}
|
||||
free(this);
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Internal generic constructor
|
||||
*/
|
||||
static private_botan_rsa_public_key_t *create_empty()
|
||||
{
|
||||
private_botan_rsa_public_key_t *this;
|
||||
|
||||
INIT(this,
|
||||
.public = {
|
||||
.key = {
|
||||
.get_type = _get_type,
|
||||
.verify = _verify,
|
||||
.encrypt = _encrypt,
|
||||
.equals = public_key_equals,
|
||||
.get_keysize = _get_keysize,
|
||||
.get_fingerprint = _get_fingerprint,
|
||||
.has_fingerprint = public_key_has_fingerprint,
|
||||
.get_encoding = _get_encoding,
|
||||
.get_ref = _get_ref,
|
||||
.destroy = _destroy,
|
||||
},
|
||||
},
|
||||
.ref = 1,
|
||||
);
|
||||
|
||||
return this;
|
||||
}
|
||||
|
||||
/**
|
||||
* See header.
|
||||
*/
|
||||
botan_rsa_public_key_t *botan_rsa_public_key_load(key_type_t type,
|
||||
va_list args)
|
||||
{
|
||||
private_botan_rsa_public_key_t *this = NULL;
|
||||
|
||||
chunk_t blob, n, e;
|
||||
|
||||
n = e = blob = chunk_empty;
|
||||
while (TRUE)
|
||||
{
|
||||
switch (va_arg(args, builder_part_t))
|
||||
{
|
||||
case BUILD_BLOB_ASN1_DER:
|
||||
blob = va_arg(args, chunk_t);
|
||||
continue;
|
||||
case BUILD_RSA_MODULUS:
|
||||
n = va_arg(args, chunk_t);
|
||||
continue;
|
||||
case BUILD_RSA_PUB_EXP:
|
||||
e = va_arg(args, chunk_t);
|
||||
continue;
|
||||
case BUILD_END:
|
||||
break;
|
||||
default:
|
||||
return NULL;
|
||||
}
|
||||
break;
|
||||
}
|
||||
|
||||
if (blob.ptr)
|
||||
{
|
||||
switch (type)
|
||||
{
|
||||
/* SubjectPublicKeyInfo */
|
||||
case KEY_ANY:
|
||||
{
|
||||
this = create_empty();
|
||||
|
||||
if (botan_pubkey_load(&this->key, blob.ptr, blob.len))
|
||||
{
|
||||
destroy(this);
|
||||
return NULL;
|
||||
}
|
||||
|
||||
size_t namesize = 0;
|
||||
if (botan_pubkey_algo_name(this->key, NULL, &namesize)
|
||||
!= BOTAN_FFI_ERROR_INSUFFICIENT_BUFFER_SPACE)
|
||||
{
|
||||
botan_pubkey_destroy(this->key);
|
||||
destroy(this);
|
||||
return NULL;
|
||||
}
|
||||
|
||||
char* namebuf = malloc(namesize);
|
||||
if (botan_pubkey_algo_name(this->key, namebuf, &namesize))
|
||||
{
|
||||
free(namebuf);
|
||||
botan_pubkey_destroy(this->key);
|
||||
destroy(this);
|
||||
return NULL;
|
||||
}
|
||||
|
||||
const char* algo_name = "RSA";
|
||||
if (!strneq(namebuf, algo_name, sizeof(algo_name)))
|
||||
{
|
||||
free(namebuf);
|
||||
botan_pubkey_destroy(this->key);
|
||||
destroy(this);
|
||||
return NULL;
|
||||
}
|
||||
|
||||
free(namebuf);
|
||||
break;
|
||||
}
|
||||
default:
|
||||
return NULL;
|
||||
}
|
||||
}
|
||||
else if(n.ptr && e.ptr && type == KEY_RSA)
|
||||
{
|
||||
|
||||
botan_mp_t mp_n, mp_e;
|
||||
if (chunk_to_botan_mp(n, &mp_n))
|
||||
{
|
||||
return NULL;
|
||||
}
|
||||
|
||||
if (chunk_to_botan_mp(e, &mp_e))
|
||||
{
|
||||
botan_mp_destroy(mp_n);
|
||||
return NULL;
|
||||
}
|
||||
|
||||
this = create_empty();
|
||||
|
||||
if (botan_pubkey_load_rsa(&this->key, mp_n, mp_e))
|
||||
{
|
||||
botan_mp_destroy(mp_n);
|
||||
botan_mp_destroy(mp_e);
|
||||
destroy(this);
|
||||
return NULL;
|
||||
}
|
||||
|
||||
botan_mp_destroy(mp_n);
|
||||
botan_mp_destroy(mp_e);
|
||||
}
|
||||
if (this != NULL)
|
||||
{
|
||||
return &this->public;
|
||||
}
|
||||
return NULL;
|
||||
}
|
||||
|
||||
#endif
|
||||
|
|
@ -0,0 +1,59 @@
|
|||
/*
|
||||
* Copyright (C) 2018 René Korthaus
|
||||
* Rohde & Schwarz Cybersecurity GmbH
|
||||
*
|
||||
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
||||
* of this software and associated documentation files (the "Software"), to deal
|
||||
* in the Software without restriction, including without limitation the rights
|
||||
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
||||
* copies of the Software, and to permit persons to whom the Software is
|
||||
* furnished to do so, subject to the following conditions:
|
||||
*
|
||||
* The above copyright notice and this permission notice shall be included in
|
||||
* all copies or substantial portions of the Software.
|
||||
*
|
||||
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||||
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
||||
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||||
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
||||
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
||||
* THE SOFTWARE.
|
||||
*/
|
||||
|
||||
/**
|
||||
* @defgroup botan_rsa_public_key botan_rsa_public_key
|
||||
* @{ @ingroup botan_p
|
||||
*/
|
||||
|
||||
#ifndef BOTAN_RSA_PUBLIC_KEY_H_
|
||||
#define BOTAN_RSA_PUBLIC_KEY_H_
|
||||
|
||||
typedef struct botan_rsa_public_key_t botan_rsa_public_key_t;
|
||||
|
||||
#include <credentials/keys/public_key.h>
|
||||
|
||||
/**
|
||||
* public_key_t implementation of RSA algorithm using Botan.
|
||||
*/
|
||||
struct botan_rsa_public_key_t {
|
||||
|
||||
/**
|
||||
* Implements the public_key_t interface
|
||||
*/
|
||||
public_key_t key;
|
||||
};
|
||||
|
||||
/**
|
||||
* Load a RSA public key using Botan.
|
||||
*
|
||||
* Accepts a BUILD_BLOB_ASN1_DER argument.
|
||||
*
|
||||
* @param type type of the key, must be KEY_RSA
|
||||
* @param args builder_part_t argument list
|
||||
* @return loaded key, NULL on failure
|
||||
*/
|
||||
botan_rsa_public_key_t *botan_rsa_public_key_load(key_type_t type,
|
||||
va_list args);
|
||||
|
||||
#endif /** BOTAN_RSA_PUBLIC_KEY_H_ @}*/
|
||||
|
|
@ -0,0 +1,43 @@
|
|||
/*
|
||||
* Copyright (C) 2018 René Korthaus
|
||||
* Rohde & Schwarz Cybersecurity GmbH
|
||||
*
|
||||
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
||||
* of this software and associated documentation files (the "Software"), to deal
|
||||
* in the Software without restriction, including without limitation the rights
|
||||
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
||||
* copies of the Software, and to permit persons to whom the Software is
|
||||
* furnished to do so, subject to the following conditions:
|
||||
*
|
||||
* The above copyright notice and this permission notice shall be included in
|
||||
* all copies or substantial portions of the Software.
|
||||
*
|
||||
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||||
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
||||
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||||
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
||||
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
||||
* THE SOFTWARE.
|
||||
*/
|
||||
|
||||
#include "botan_util.h"
|
||||
|
||||
#include <utils/debug.h>
|
||||
|
||||
#include <botan/ffi.h>
|
||||
|
||||
int chunk_to_botan_mp(chunk_t value, botan_mp_t *mp)
|
||||
{
|
||||
if (botan_mp_init(mp))
|
||||
{
|
||||
return -1;
|
||||
}
|
||||
|
||||
if (botan_mp_from_bin(*mp, value.ptr, value.len))
|
||||
{
|
||||
botan_mp_destroy(*mp);
|
||||
return -1;
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
|
@ -0,0 +1,41 @@
|
|||
/*
|
||||
* Copyright (C) 2018 René Korthaus
|
||||
* Rohde & Schwarz Cybersecurity GmbH
|
||||
*
|
||||
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
||||
* of this software and associated documentation files (the "Software"), to deal
|
||||
* in the Software without restriction, including without limitation the rights
|
||||
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
||||
* copies of the Software, and to permit persons to whom the Software is
|
||||
* furnished to do so, subject to the following conditions:
|
||||
*
|
||||
* The above copyright notice and this permission notice shall be included in
|
||||
* all copies or substantial portions of the Software.
|
||||
*
|
||||
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||||
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
||||
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||||
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
||||
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
||||
* THE SOFTWARE.
|
||||
*/
|
||||
|
||||
/**
|
||||
* @defgroup botan_util botan_util
|
||||
* @{ @ingroup botan_p
|
||||
*/
|
||||
|
||||
#ifndef BOTAN_UTIL_H_
|
||||
#define BOTAN_UTIL_H_
|
||||
|
||||
#include <library.h>
|
||||
|
||||
#include <botan/ffi.h>
|
||||
|
||||
/**
|
||||
* Converts chunk_t to botan_mp_t
|
||||
*/
|
||||
int chunk_to_botan_mp(chunk_t value, botan_mp_t *mp);
|
||||
|
||||
#endif /** BOTAN_UTIL_H_ @}*/
|
||||
Loading…
Reference in New Issue