gcrypt RSA private key implementation
This commit is contained in:
Martin Willi
parent
ccd1464586
commit
ff8d3ba355
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@ -6,6 +6,7 @@ AM_CFLAGS = -rdynamic $(LIBGCRYPT_CFLAGS)
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plugin_LTLIBRARIES = libstrongswan-gcrypt.la
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libstrongswan_gcrypt_la_SOURCES = gcrypt_plugin.h gcrypt_plugin.c \
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gcrypt_rsa_private_key.h gcrypt_rsa_private_key.c \
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gcrypt_dh.h gcrypt_dh.c \
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gcrypt_rng.h gcrypt_rng.c \
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gcrypt_crypter.h gcrypt_crypter.c \
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@ -19,6 +19,7 @@
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#include "gcrypt_crypter.h"
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#include "gcrypt_rng.h"
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#include "gcrypt_dh.h"
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#include "gcrypt_rsa_private_key.h"
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#include <library.h>
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#include <debug.h>
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@ -104,6 +105,8 @@ static void destroy(private_gcrypt_plugin_t *this)
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(rng_constructor_t)gcrypt_rng_create);
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lib->crypto->remove_dh(lib->crypto,
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(dh_constructor_t)gcrypt_dh_create);
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lib->creds->remove_builder(lib->creds,
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(builder_constructor_t)gcrypt_rsa_private_key_builder);
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free(this);
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}
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@ -194,6 +197,10 @@ plugin_t *plugin_create()
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lib->crypto->add_dh(lib->crypto, MODP_768_BIT,
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(dh_constructor_t)gcrypt_dh_create);
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/* RSA */
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lib->creds->add_builder(lib->creds, CRED_PRIVATE_KEY, KEY_RSA,
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(builder_constructor_t)gcrypt_rsa_private_key_builder);
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return &this->public.plugin;
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}
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@ -0,0 +1,643 @@
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/*
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* Copyright (C) 2005-2009 Martin Willi
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* Hochschule fuer Technik Rapperswil
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2 of the License, or (at your
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* option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* for more details.
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*/
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#include <gcrypt.h>
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#include "gcrypt_rsa_private_key.h"
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#include <debug.h>
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#include <asn1/oid.h>
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#include <asn1/asn1.h>
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#include <asn1/asn1_parser.h>
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typedef struct private_gcrypt_rsa_private_key_t private_gcrypt_rsa_private_key_t;
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/**
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* Private data of a gcrypt_rsa_private_key_t object.
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*/
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struct private_gcrypt_rsa_private_key_t {
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/**
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* Public interface
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*/
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gcrypt_rsa_private_key_t public;
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/**
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* gcrypt S-expression representing an RSA key
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*/
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gcry_sexp_t key;
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/**
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* Keyid formed as a SHA-1 hash of a publicKey object
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*/
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identification_t* keyid;
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/**
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* Keyid formed as a SHA-1 hash of a publicKeyInfo object
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*/
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identification_t* keyid_info;
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/**
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* reference count
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*/
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refcount_t ref;
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};
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/**
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* find a token in a S-expression
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*/
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static chunk_t gcrypt_rsa_find_token(gcry_sexp_t sexp, char *name)
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{
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gcry_sexp_t token;
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chunk_t data = chunk_empty;
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token = gcry_sexp_find_token(sexp, name, 1);
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if (token)
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{
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data.ptr = (char*)gcry_sexp_nth_data(token, 1, &data.len);
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if (!data.ptr)
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{
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data.len = 0;
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}
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data = chunk_clone(data);
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gcry_sexp_release(token);
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}
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return data;
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}
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/**
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* Implementation of gcrypt_rsa_private_key_t.build_emsa_pkcs1_signature.
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*/
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static bool sign_pkcs1(private_gcrypt_rsa_private_key_t *this,
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hash_algorithm_t hash_algorithm, char *hash_name,
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chunk_t data, chunk_t *signature)
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{
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hasher_t *hasher;
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chunk_t hash;
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gcry_error_t err;
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gcry_sexp_t in, out;
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int hash_oid;
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hash_oid = hasher_algorithm_to_oid(hash_algorithm);
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if (hash_oid == OID_UNKNOWN)
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{
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return FALSE;
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}
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hasher = lib->crypto->create_hasher(lib->crypto, hash_algorithm);
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if (!hasher)
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{
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return FALSE;
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}
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hasher->allocate_hash(hasher, data, &hash);
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hasher->destroy(hasher);
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err = gcry_sexp_build(&in, NULL, "(data(flags pkcs1)(hash %s %b))",
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hash_name, hash.len, hash.ptr);
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chunk_free(&hash);
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if (err)
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{
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DBG1("building signature S-expression failed: %s", gpg_strerror(err));
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return FALSE;
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}
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err = gcry_pk_sign(&out, in, this->key);
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gcry_sexp_release(in);
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if (err)
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{
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DBG1("creating pkcs1 signature failed: %s", gpg_strerror(err));
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return FALSE;
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}
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*signature = gcrypt_rsa_find_token(out, "s");
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gcry_sexp_release(out);
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return !!signature->len;
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}
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/**
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* Implementation of gcrypt_rsa_private_key.destroy.
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*/
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static key_type_t get_type(private_gcrypt_rsa_private_key_t *this)
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{
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return KEY_RSA;
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}
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/**
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* Implementation of gcrypt_rsa_private_key.destroy.
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*/
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static bool sign(private_gcrypt_rsa_private_key_t *this, signature_scheme_t scheme,
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chunk_t data, chunk_t *sig)
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{
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switch (scheme)
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{
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case SIGN_DEFAULT:
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/* default is EMSA-PKCS1 using SHA1 */
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case SIGN_RSA_EMSA_PKCS1_SHA1:
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return sign_pkcs1(this, HASH_SHA1, "sha1", data, sig);
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case SIGN_RSA_EMSA_PKCS1_SHA256:
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return sign_pkcs1(this, HASH_SHA256, "sha256", data, sig);
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case SIGN_RSA_EMSA_PKCS1_SHA384:
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return sign_pkcs1(this, HASH_SHA384, "sha384", data, sig);
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case SIGN_RSA_EMSA_PKCS1_SHA512:
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return sign_pkcs1(this, HASH_SHA512, "sha512", data, sig);
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case SIGN_RSA_EMSA_PKCS1_MD5:
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return sign_pkcs1(this, HASH_MD5, "md5", data, sig);
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default:
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DBG1("signature scheme %N not supported in RSA",
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signature_scheme_names, scheme);
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return FALSE;
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}
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}
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/**
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* Implementation of gcrypt_rsa_private_key.destroy.
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*/
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static bool decrypt(private_gcrypt_rsa_private_key_t *this,
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chunk_t crypto, chunk_t *plain)
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{
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DBG1("RSA private key decryption not implemented");
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return FALSE;
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}
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/**
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* Implementation of gcrypt_rsa_private_key.get_keysize.
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*/
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static size_t get_keysize(private_gcrypt_rsa_private_key_t *this)
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{
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return gcry_pk_get_nbits(this->key) / 8;
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}
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/**
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* Implementation of gcrypt_rsa_private_key.destroy.
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*/
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static identification_t* get_id(private_gcrypt_rsa_private_key_t *this,
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id_type_t type)
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{
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switch (type)
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{
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case ID_PUBKEY_INFO_SHA1:
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return this->keyid_info;
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case ID_PUBKEY_SHA1:
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return this->keyid;
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default:
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return NULL;
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}
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}
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/**
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* Implementation of gcrypt_rsa_private_key.get_public_key.
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*/
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static public_key_t* get_public_key(private_gcrypt_rsa_private_key_t *this)
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{
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return NULL;
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}
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/**
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* Implementation of gcrypt_rsa_private_key.equals.
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*/
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static bool equals(private_gcrypt_rsa_private_key_t *this, private_key_t *other)
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{
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identification_t *keyid;
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if (&this->public.interface == other)
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{
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return TRUE;
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}
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if (other->get_type(other) != KEY_RSA)
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{
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return FALSE;
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}
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keyid = other->get_id(other, ID_PUBKEY_SHA1);
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if (keyid && keyid->equals(keyid, this->keyid))
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{
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return TRUE;
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}
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keyid = other->get_id(other, ID_PUBKEY_INFO_SHA1);
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if (keyid && keyid->equals(keyid, this->keyid_info))
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{
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return TRUE;
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}
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return FALSE;
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}
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/**
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* Implementation of gcrypt_rsa_private_key.belongs_to.
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*/
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static bool belongs_to(private_gcrypt_rsa_private_key_t *this,
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public_key_t *public)
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{
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identification_t *keyid;
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if (public->get_type(public) != KEY_RSA)
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{
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return FALSE;
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}
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keyid = public->get_id(public, ID_PUBKEY_SHA1);
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if (keyid && keyid->equals(keyid, this->keyid))
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{
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return TRUE;
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}
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keyid = public->get_id(public, ID_PUBKEY_INFO_SHA1);
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if (keyid && keyid->equals(keyid, this->keyid_info))
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{
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return TRUE;
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}
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return FALSE;
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}
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/**
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* Implementation of private_key_t.get_encoding.
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*/
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static chunk_t get_encoding(private_gcrypt_rsa_private_key_t *this)
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{
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chunk_t cp, cq, cd, cexp1 = chunk_empty, cexp2 = chunk_empty;
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gcry_mpi_t p = NULL, q = NULL, d = NULL, exp1, exp2;
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gcry_error_t err;
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/* p and q are swapped, gcrypt expects p < q */
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cp = gcrypt_rsa_find_token(this->key, "q");
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cq = gcrypt_rsa_find_token(this->key, "p");
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cd = gcrypt_rsa_find_token(this->key, "d");
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err = gcry_mpi_scan(&p, GCRYMPI_FMT_USG, cp.ptr, cp.len, NULL)
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| gcry_mpi_scan(&q, GCRYMPI_FMT_USG, cq.ptr, cq.len, NULL)
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| gcry_mpi_scan(&d, GCRYMPI_FMT_USG, cd.ptr, cd.len, NULL);
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if (err)
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{
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gcry_mpi_release(p);
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gcry_mpi_release(q);
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gcry_mpi_release(d);
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chunk_clear(&cp);
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chunk_clear(&cq);
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chunk_clear(&cd);
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DBG1("scanning mpi for export failed: %s", gpg_strerror(err));
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return chunk_empty;
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}
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gcry_mpi_sub_ui(p, p, 1);
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exp1 = gcry_mpi_new(gcry_pk_get_nbits(this->key));
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gcry_mpi_mod(exp1, d, p);
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gcry_mpi_release(p);
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gcry_mpi_sub_ui(q, q, 1);
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exp2 = gcry_mpi_new(gcry_pk_get_nbits(this->key));
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gcry_mpi_mod(exp1, d, q);
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gcry_mpi_release(q);
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err = gcry_mpi_aprint(GCRYMPI_FMT_USG, &cexp1.ptr, &cexp1.len, exp1)
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| gcry_mpi_aprint(GCRYMPI_FMT_USG, &cexp2.ptr, &cexp2.len, exp2);
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gcry_mpi_release(d);
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gcry_mpi_release(exp1);
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gcry_mpi_release(exp2);
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if (err)
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{
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DBG1("printing mpi for export failed: %s", gpg_strerror(err));
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chunk_clear(&cp);
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chunk_clear(&cq);
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chunk_clear(&cd);
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chunk_clear(&cexp1);
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chunk_clear(&cexp2);
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return chunk_empty;
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}
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return asn1_wrap(ASN1_SEQUENCE, "cmmmmmmmm", ASN1_INTEGER_0,
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asn1_wrap(ASN1_INTEGER, "m", gcrypt_rsa_find_token(this->key, "n")),
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asn1_wrap(ASN1_INTEGER, "m", gcrypt_rsa_find_token(this->key, "e")),
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asn1_wrap(ASN1_INTEGER, "m", cd),
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asn1_wrap(ASN1_INTEGER, "m", cp),
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asn1_wrap(ASN1_INTEGER, "m", cq),
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asn1_wrap(ASN1_INTEGER, "m", cexp1),
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asn1_wrap(ASN1_INTEGER, "m", cexp2),
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asn1_wrap(ASN1_INTEGER, "m", gcrypt_rsa_find_token(this->key, "u")));
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}
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/**
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* Implementation of gcrypt_rsa_private_key.get_ref.
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*/
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static private_key_t* get_ref(private_gcrypt_rsa_private_key_t *this)
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{
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ref_get(&this->ref);
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return &this->public.interface;
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}
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/**
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* Implementation of gcrypt_rsa_private_key.destroy.
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*/
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static void destroy(private_gcrypt_rsa_private_key_t *this)
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{
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if (ref_put(&this->ref))
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{
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DESTROY_IF(this->keyid);
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DESTROY_IF(this->keyid_info);
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gcry_sexp_release(this->key);
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free(this);
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}
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}
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/**
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* Internal generic constructor
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*/
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static private_gcrypt_rsa_private_key_t *gcrypt_rsa_private_key_create_empty()
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{
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private_gcrypt_rsa_private_key_t *this = malloc_thing(private_gcrypt_rsa_private_key_t);
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this->public.interface.get_type = (key_type_t (*)(private_key_t *this))get_type;
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this->public.interface.sign = (bool (*)(private_key_t *this, signature_scheme_t scheme, chunk_t data, chunk_t *signature))sign;
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this->public.interface.decrypt = (bool (*)(private_key_t *this, chunk_t crypto, chunk_t *plain))decrypt;
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this->public.interface.get_keysize = (size_t (*) (private_key_t *this))get_keysize;
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this->public.interface.get_id = (identification_t* (*) (private_key_t *this,id_type_t))get_id;
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this->public.interface.get_public_key = (public_key_t* (*)(private_key_t *this))get_public_key;
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this->public.interface.equals = (bool (*) (private_key_t*, private_key_t*))equals;
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this->public.interface.belongs_to = (bool (*) (private_key_t *this, public_key_t *public))belongs_to;
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this->public.interface.get_encoding = (chunk_t(*)(private_key_t*))get_encoding;
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this->public.interface.get_ref = (private_key_t* (*)(private_key_t *this))get_ref;
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this->public.interface.destroy = (void (*)(private_key_t *this))destroy;
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this->key = NULL;
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this->keyid = NULL;
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this->keyid_info = NULL;
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this->ref = 1;
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return this;
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}
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/**
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* build the keyids of a private/public key
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*/
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static bool gcrypt_rsa_build_keyids(gcry_sexp_t key, identification_t **keyid,
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identification_t **keyid_info)
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{
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chunk_t publicKeyInfo, publicKey, hash;
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hasher_t *hasher;
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hasher = lib->crypto->create_hasher(lib->crypto, HASH_SHA1);
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if (!hasher)
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{
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DBG1("SHA1 hash algorithm not supported, unable to use RSA");
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return FALSE;
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}
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publicKey = asn1_wrap(ASN1_SEQUENCE, "mm",
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asn1_wrap(ASN1_INTEGER, "m", gcrypt_rsa_find_token(key, "n")),
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asn1_wrap(ASN1_INTEGER, "m", gcrypt_rsa_find_token(key, "e")));
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hasher->allocate_hash(hasher, publicKey, &hash);
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*keyid = identification_create_from_encoding(ID_PUBKEY_SHA1, hash);
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chunk_free(&hash);
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publicKeyInfo = asn1_wrap(ASN1_SEQUENCE, "cm",
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asn1_algorithmIdentifier(OID_RSA_ENCRYPTION),
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asn1_bitstring("m", publicKey));
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hasher->allocate_hash(hasher, publicKeyInfo, &hash);
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*keyid_info = identification_create_from_encoding(ID_PUBKEY_INFO_SHA1, hash);
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chunk_free(&hash);
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hasher->destroy(hasher);
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chunk_free(&publicKeyInfo);
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return TRUE;
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}
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||||
/**
|
||||
* Generate an RSA key of specified key size
|
||||
*/
|
||||
static gcrypt_rsa_private_key_t *generate(size_t key_size)
|
||||
{
|
||||
private_gcrypt_rsa_private_key_t *this;
|
||||
gcry_sexp_t param, key;
|
||||
gcry_error_t err;
|
||||
|
||||
err = gcry_sexp_build(¶m, NULL, "(genkey(rsa(nbits %d)))", key_size);
|
||||
if (err)
|
||||
{
|
||||
DBG1("building S-expression failed: %s", gpg_strerror(err));
|
||||
return NULL;
|
||||
}
|
||||
|
||||
err = gcry_pk_genkey(&key, param);
|
||||
gcry_sexp_release(param);
|
||||
if (err)
|
||||
{
|
||||
DBG1("generating RSA key failed: %s", gpg_strerror(err));
|
||||
return NULL;
|
||||
}
|
||||
this = gcrypt_rsa_private_key_create_empty();
|
||||
this->key = key;
|
||||
|
||||
if (!gcrypt_rsa_build_keyids(this->key, &this->keyid, &this->keyid_info))
|
||||
{
|
||||
destroy(this);
|
||||
return NULL;
|
||||
}
|
||||
|
||||
return &this->public;
|
||||
}
|
||||
|
||||
/**
|
||||
* ASN.1 definition of a PKCS#1 RSA private key
|
||||
*/
|
||||
static const asn1Object_t privkeyObjects[] = {
|
||||
{ 0, "RSAPrivateKey", ASN1_SEQUENCE, ASN1_NONE }, /* 0 */
|
||||
{ 1, "version", ASN1_INTEGER, ASN1_BODY }, /* 1 */
|
||||
{ 1, "modulus", ASN1_INTEGER, ASN1_BODY }, /* 2 */
|
||||
{ 1, "publicExponent", ASN1_INTEGER, ASN1_BODY }, /* 3 */
|
||||
{ 1, "privateExponent", ASN1_INTEGER, ASN1_BODY }, /* 4 */
|
||||
{ 1, "prime1", ASN1_INTEGER, ASN1_BODY }, /* 5 */
|
||||
{ 1, "prime2", ASN1_INTEGER, ASN1_BODY }, /* 6 */
|
||||
{ 1, "exponent1", ASN1_INTEGER, ASN1_BODY }, /* 7 */
|
||||
{ 1, "exponent2", ASN1_INTEGER, ASN1_BODY }, /* 8 */
|
||||
{ 1, "coefficient", ASN1_INTEGER, ASN1_BODY }, /* 9 */
|
||||
{ 1, "otherPrimeInfos", ASN1_SEQUENCE, ASN1_OPT |
|
||||
ASN1_LOOP }, /* 10 */
|
||||
{ 2, "otherPrimeInfo", ASN1_SEQUENCE, ASN1_NONE }, /* 11 */
|
||||
{ 3, "prime", ASN1_INTEGER, ASN1_BODY }, /* 12 */
|
||||
{ 3, "exponent", ASN1_INTEGER, ASN1_BODY }, /* 13 */
|
||||
{ 3, "coefficient", ASN1_INTEGER, ASN1_BODY }, /* 14 */
|
||||
{ 1, "end opt or loop", ASN1_EOC, ASN1_END }, /* 15 */
|
||||
{ 0, "exit", ASN1_EOC, ASN1_EXIT }
|
||||
};
|
||||
#define PRIV_KEY_VERSION 1
|
||||
#define PRIV_KEY_MODULUS 2
|
||||
#define PRIV_KEY_PUB_EXP 3
|
||||
#define PRIV_KEY_PRIV_EXP 4
|
||||
#define PRIV_KEY_PRIME1 5
|
||||
#define PRIV_KEY_PRIME2 6
|
||||
#define PRIV_KEY_EXP1 7
|
||||
#define PRIV_KEY_EXP2 8
|
||||
#define PRIV_KEY_COEFF 9
|
||||
|
||||
/**
|
||||
* load private key from a ASN1 encoded blob
|
||||
*/
|
||||
static gcrypt_rsa_private_key_t *load(chunk_t blob)
|
||||
{
|
||||
private_gcrypt_rsa_private_key_t *this;
|
||||
asn1_parser_t *parser;
|
||||
chunk_t object;
|
||||
int objectID ;
|
||||
bool success = FALSE;
|
||||
chunk_t n, e, d, u, p, q;
|
||||
gcry_error_t err;
|
||||
|
||||
parser = asn1_parser_create(privkeyObjects, blob);
|
||||
parser->set_flags(parser, FALSE, TRUE);
|
||||
|
||||
while (parser->iterate(parser, &objectID, &object))
|
||||
{
|
||||
switch (objectID)
|
||||
{
|
||||
case PRIV_KEY_VERSION:
|
||||
if (object.len > 0 && *object.ptr != 0)
|
||||
{
|
||||
goto end;
|
||||
}
|
||||
break;
|
||||
case PRIV_KEY_MODULUS:
|
||||
n = object;
|
||||
break;
|
||||
case PRIV_KEY_PUB_EXP:
|
||||
e = object;
|
||||
break;
|
||||
case PRIV_KEY_PRIV_EXP:
|
||||
d = object;
|
||||
break;
|
||||
case PRIV_KEY_PRIME1:
|
||||
/* p and q are swapped, as gcrypt expects p < q */
|
||||
q = object;
|
||||
break;
|
||||
case PRIV_KEY_PRIME2:
|
||||
p = object;
|
||||
break;
|
||||
case PRIV_KEY_EXP1:
|
||||
case PRIV_KEY_EXP2:
|
||||
break;
|
||||
case PRIV_KEY_COEFF:
|
||||
u = object;
|
||||
break;
|
||||
}
|
||||
}
|
||||
success = parser->success(parser);
|
||||
|
||||
end:
|
||||
parser->destroy(parser);
|
||||
|
||||
if (!success)
|
||||
{
|
||||
return NULL;
|
||||
}
|
||||
|
||||
this = gcrypt_rsa_private_key_create_empty();
|
||||
err = gcry_sexp_build(&this->key, NULL,
|
||||
"(private-key(rsa(n %b)(e %b)(d %b)(p %b)(q %b)(u %b)))",
|
||||
n.len, n.ptr, e.len, e.ptr, d.len, d.ptr,
|
||||
p.len, p.ptr, q.len, q.ptr, u.len, u.ptr);
|
||||
if (err)
|
||||
{
|
||||
DBG1("loading private key failed: %s", gpg_strerror(err));
|
||||
free(this);
|
||||
return NULL;
|
||||
}
|
||||
err = gcry_pk_testkey(this->key);
|
||||
if (err)
|
||||
{
|
||||
DBG1("private key sanity check failed: %s", gpg_strerror(err));
|
||||
destroy(this);
|
||||
return NULL;
|
||||
}
|
||||
if (!gcrypt_rsa_build_keyids(this->key, &this->keyid, &this->keyid_info))
|
||||
{
|
||||
destroy(this);
|
||||
return NULL;
|
||||
}
|
||||
return &this->public;
|
||||
}
|
||||
|
||||
typedef struct private_builder_t private_builder_t;
|
||||
|
||||
/**
|
||||
* Builder implementation for key loading/generation
|
||||
*/
|
||||
struct private_builder_t {
|
||||
/** implements the builder interface */
|
||||
builder_t public;
|
||||
/** loaded/generated private key */
|
||||
gcrypt_rsa_private_key_t *key;
|
||||
};
|
||||
|
||||
/**
|
||||
* Implementation of builder_t.build
|
||||
*/
|
||||
static gcrypt_rsa_private_key_t *build(private_builder_t *this)
|
||||
{
|
||||
gcrypt_rsa_private_key_t *key = this->key;
|
||||
|
||||
free(this);
|
||||
return key;
|
||||
}
|
||||
|
||||
/**
|
||||
* Implementation of builder_t.add
|
||||
*/
|
||||
static void add(private_builder_t *this, builder_part_t part, ...)
|
||||
{
|
||||
if (!this->key)
|
||||
{
|
||||
va_list args;
|
||||
|
||||
switch (part)
|
||||
{
|
||||
case BUILD_BLOB_ASN1_DER:
|
||||
{
|
||||
va_start(args, part);
|
||||
this->key = load(va_arg(args, chunk_t));
|
||||
va_end(args);
|
||||
return;
|
||||
}
|
||||
case BUILD_KEY_SIZE:
|
||||
{
|
||||
va_start(args, part);
|
||||
this->key = generate(va_arg(args, u_int));
|
||||
va_end(args);
|
||||
return;
|
||||
}
|
||||
default:
|
||||
break;
|
||||
}
|
||||
}
|
||||
if (this->key)
|
||||
{
|
||||
destroy((private_gcrypt_rsa_private_key_t*)this->key);
|
||||
}
|
||||
builder_cancel(&this->public);
|
||||
}
|
||||
|
||||
/**
|
||||
* Builder construction function
|
||||
*/
|
||||
builder_t *gcrypt_rsa_private_key_builder(key_type_t type)
|
||||
{
|
||||
private_builder_t *this;
|
||||
|
||||
if (type != KEY_RSA)
|
||||
{
|
||||
return NULL;
|
||||
}
|
||||
|
||||
this = malloc_thing(private_builder_t);
|
||||
|
||||
this->key = NULL;
|
||||
this->public.add = (void(*)(builder_t *this, builder_part_t part, ...))add;
|
||||
this->public.build = (void*(*)(builder_t *this))build;
|
||||
|
||||
return &this->public;
|
||||
}
|
||||
|
||||
|
|
@ -0,0 +1,47 @@
|
|||
/*
|
||||
* Copyright (C) 2009 Martin Willi
|
||||
* Hochschule fuer Technik Rapperswil
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify it
|
||||
* under the terms of the GNU General Public License as published by the
|
||||
* Free Software Foundation; either version 2 of the License, or (at your
|
||||
* option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>.
|
||||
*
|
||||
* This program is distributed in the hope that it will be useful, but
|
||||
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
|
||||
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
|
||||
* for more details.
|
||||
*/
|
||||
|
||||
/**
|
||||
* @defgroup gcrypt_rsa_private_key gcrypt_rsa_private_key
|
||||
* @{ @ingroup gcrypt_p
|
||||
*/
|
||||
|
||||
#ifndef GCRYPT_RSA_PRIVATE_KEY_H_
|
||||
#define GCRYPT_RSA_PRIVATE_KEY_H_
|
||||
|
||||
#include <credentials/keys/private_key.h>
|
||||
|
||||
typedef struct gcrypt_rsa_private_key_t gcrypt_rsa_private_key_t;
|
||||
|
||||
/**
|
||||
* Private_key_t implementation of RSA algorithm using libgcrypt.
|
||||
*/
|
||||
struct gcrypt_rsa_private_key_t {
|
||||
|
||||
/**
|
||||
* Implements private_key_t interface
|
||||
*/
|
||||
private_key_t interface;
|
||||
};
|
||||
|
||||
/**
|
||||
* Create the builder for a private key.
|
||||
*
|
||||
* @param type type of the key, must be KEY_RSA
|
||||
* @return builder instance
|
||||
*/
|
||||
builder_t *gcrypt_rsa_private_key_builder(key_type_t type);
|
||||
|
||||
#endif /** GCRYPT_RSA_PRIVATE_KEY_H_ @}*/
|
||||
Loading…
Reference in New Issue