experimental Padlock plugin supportin SHA1 and AES-128 for VIA C7 Esther
This commit is contained in:
Martin Willi
parent
65456bfe33
commit
36d62fac65
12
configure.in
12
configure.in
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@ -486,6 +486,16 @@ AC_ARG_ENABLE(
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tools=true
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)
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AC_ARG_ENABLE(
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[padlock],
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AS_HELP_STRING([--enable-padlock],[enables VIA Padlock crypto plugin. (default is NO).]),
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[if test x$enableval = xyes; then
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padlock=true
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else
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padlock=false
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fi],
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)
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dnl =========================
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dnl check required programs
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dnl =========================
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@ -632,6 +642,7 @@ AM_CONDITIONAL(USE_TOOLS, test x$tools = xtrue)
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AM_CONDITIONAL(USE_PLUTO_OR_CHARON, test x$pluto = xtrue -o x$charon = xtrue)
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AM_CONDITIONAL(USE_LIBSTRONGSWAN, test x$charon = xtrue -o x$tools = xtrue)
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AM_CONDITIONAL(USE_FILE_CONFIG, test x$pluto = xtrue -o x$stroke = xtrue)
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AM_CONDITIONAL(USE_PADLOCK, test x$padlock = xtrue)
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dnl ==============================
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dnl set global definitions
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@ -664,6 +675,7 @@ AC_OUTPUT(
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src/libstrongswan/plugins/ldap/Makefile
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src/libstrongswan/plugins/mysql/Makefile
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src/libstrongswan/plugins/sqlite/Makefile
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src/libstrongswan/plugins/padlock/Makefile
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src/libcrypto/Makefile
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src/libfreeswan/Makefile
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src/pluto/Makefile
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@ -140,6 +140,9 @@ if USE_SQLITE
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SUBDIRS += plugins/sqlite
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endif
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if USE_PADLOCK
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SUBDIRS += plugins/padlock
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endif
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if USE_INTEGRITY_TEST
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# build fips_signer which in turn builds fips_signature.h
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@ -0,0 +1,12 @@
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INCLUDES = -I$(top_srcdir)/src/libstrongswan
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AM_CFLAGS = -rdynamic
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plugin_LTLIBRARIES = libstrongswan-padlock.la
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libstrongswan_padlock_la_SOURCES = padlock_plugin.h padlock_plugin.c \
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padlock_aes_crypter.c padlock_aes_crypter.h \
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padlock_sha1_hasher.c padlock_sha1_hasher.h
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libstrongswan_padlock_la_LDFLAGS = -module
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@ -0,0 +1,201 @@
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/*
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* Copyright (C) 2008 Thomas Kallenberg
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* Copyright (C) 2008 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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* $Id$
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*/
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#include "padlock_aes_crypter.h"
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#include <stdio.h>
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#define AES_BLOCK_SIZE 16
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#define PADLOCK_ALIGN __attribute__ ((__aligned__(16)))
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typedef struct private_padlock_aes_crypter_t private_padlock_aes_crypter_t;
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/**
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* Private data of padlock_aes_crypter_t
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*/
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struct private_padlock_aes_crypter_t {
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/**
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* Public part of this class.
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*/
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padlock_aes_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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/**
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* Control word structure to pass to crypt operations
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*/
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typedef struct {
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u_int __attribute__ ((__packed__))
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rounds:4,
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algo:3,
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keygen:1,
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interm:1,
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encdec:1,
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ksize:2;
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/* microcode needs additional bytes for calculation */
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u_char buf[124];
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} cword;
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/**
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* Invoke the actual de/encryption
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*/
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static void padlock_crypt(void *key, void *ctrl, void *src, void *dst,
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int count, void *iv)
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{
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asm volatile(
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"pushl %%eax\n pushl %%ebx\n pushl %%ecx\n"
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"pushl %%edx\n pushl %%esi\n pushl %%edi\n"
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"pushfl\n popfl\n"
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"movl %0, %%eax\n"
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"movl %1, %%ebx\n"
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"movl %2, %%ecx\n"
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"movl %3, %%edx\n"
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"movl %4, %%esi\n"
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"movl %5, %%edi\n"
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"rep\n"
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".byte 0x0f, 0xa7, 0xd0\n"
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"popl %%edi\n popl %%esi\n popl %%edx\n"
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"popl %%ecx\n popl %%ebx\n popl %%eax\n"
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:
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: "m"(iv),"m"(key), "m"(count), "m"(ctrl), "m"(src), "m"(dst)
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: "eax", "ecx", "edx", "esi", "edi");
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}
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/*
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* Implementation of crypter_t.crypt
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*/
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static void crypt(private_padlock_aes_crypter_t *this, char *iv,
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chunk_t src, chunk_t *dst, bool enc)
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{
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cword cword PADLOCK_ALIGN;
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u_char key_aligned[256] PADLOCK_ALIGN;
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u_char iv_aligned[16] PADLOCK_ALIGN;
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memset(&cword, 0, sizeof(cword));
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/* set encryption/decryption flag */
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cword.encdec = enc;
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/* calculate rounds and key size */
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cword.rounds = 10 + (this->key.len - 16) / 4;
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cword.ksize = (this->key.len - 16) / 8;
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/* enable autoalign */
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cword.algo |= 2;
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/* move data to aligned buffers */
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memcpy(iv_aligned, iv, sizeof(iv_aligned));
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memcpy(key_aligned, this->key.ptr, this->key.len);
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*dst = chunk_alloc(src.len);
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padlock_crypt(key_aligned, &cword, src.ptr, dst->ptr,
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src.len / AES_BLOCK_SIZE, iv_aligned);
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}
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/**
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* Implementation of crypter_t.decrypt.
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*/
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static void decrypt(private_padlock_aes_crypter_t *this, chunk_t data,
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chunk_t iv, chunk_t *dst)
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{
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crypt(this, iv.ptr, data, dst, TRUE);
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}
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/**
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* Implementation of crypter_t.encrypt.
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*/
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static void encrypt (private_padlock_aes_crypter_t *this, chunk_t data,
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chunk_t iv, chunk_t *dst)
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{
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crypt(this, iv.ptr, data, dst, FALSE);
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}
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/**
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* Implementation of crypter_t.get_block_size.
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*/
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static size_t get_block_size(private_padlock_aes_crypter_t *this)
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{
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return AES_BLOCK_SIZE;
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}
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/**
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* Implementation of crypter_t.get_key_size.
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*/
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static size_t get_key_size(private_padlock_aes_crypter_t *this)
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{
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return this->key.len;
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}
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/**
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* Implementation of crypter_t.set_key.
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*/
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static void set_key(private_padlock_aes_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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}
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/**
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* Implementation of crypter_t.destroy and aes_crypter_t.destroy.
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*/
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static void destroy (private_padlock_aes_crypter_t *this)
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{
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free(this->key.ptr);
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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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padlock_aes_crypter_t *padlock_aes_crypter_create(encryption_algorithm_t algo,
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size_t key_size)
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{
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private_padlock_aes_crypter_t *this;
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if (algo != ENCR_AES_CBC)
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{
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return NULL;
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}
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this = malloc_thing(private_padlock_aes_crypter_t);
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switch (key_size)
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{
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case 16: /* AES 128 */
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break;
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case 24: /* AES-192 */
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case 32: /* AES-256 */
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/* These need an expanded key, currently not supported, FALL */
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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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this->key = chunk_alloc(key_size);
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this->public.crypter_interface.encrypt = (void (*) (crypter_t *, chunk_t,chunk_t, chunk_t *)) encrypt;
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this->public.crypter_interface.decrypt = (void (*) (crypter_t *, chunk_t , chunk_t, chunk_t *)) decrypt;
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this->public.crypter_interface.get_block_size = (size_t (*) (crypter_t *)) get_block_size;
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this->public.crypter_interface.get_key_size = (size_t (*) (crypter_t *)) get_key_size;
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this->public.crypter_interface.set_key = (void (*) (crypter_t *,chunk_t)) set_key;
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this->public.crypter_interface.destroy = (void (*) (crypter_t *)) destroy;
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return &this->public;
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}
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@ -0,0 +1,50 @@
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/*
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* Copyright (C) 2008 Thomas Kallenberg
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* Copyright (C) 2008 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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/**
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* @defgroup padlock_aes_crypter padlock_aes_crypter
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* @{ @ingroup padlock_p
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*/
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#ifndef PADLOCK_AES_CRYPTER_H_
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#define PADLOCK_AES_CRYPTER_H_
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typedef struct padlock_aes_crypter_t padlock_aes_crypter_t;
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#include <crypto/crypters/crypter.h>
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/**
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* Implementation of AES-128 using VIA Padlock.
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*/
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struct padlock_aes_crypter_t {
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/**
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* The crypter_t interface.
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*/
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crypter_t crypter_interface;
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};
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/**
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* Constructor to create padlock_aes_crypter_t.
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*
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* @param key_size key size in bytes, currently supports only 16.
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* @param algo algorithm to implement, must be ENCR_AES_CBC
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* @return padlock_aes_crypter_t, NULL if not supported
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*/
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padlock_aes_crypter_t *padlock_aes_crypter_create(encryption_algorithm_t algo,
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size_t key_size);
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#endif /* PADLOCK_AES_CRYPTER_H_ @}*/
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@ -0,0 +1,64 @@
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/*
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* Copyright (C) 2008 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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* $Id$
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*/
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#include "padlock_plugin.h"
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#include <library.h>
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#include "padlock_aes_crypter.h"
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#include "padlock_sha1_hasher.h"
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typedef struct private_padlock_plugin_t private_padlock_plugin_t;
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/**
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* private data of aes_plugin
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*/
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struct private_padlock_plugin_t {
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/**
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* public functions
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*/
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padlock_plugin_t public;
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};
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/**
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* Implementation of aes_plugin_t.destroy
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*/
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static void destroy(private_padlock_plugin_t *this)
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{
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lib->crypto->remove_crypter(lib->crypto,
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(crypter_constructor_t)padlock_aes_crypter_create);
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lib->crypto->remove_hasher(lib->crypto,
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(hasher_constructor_t)padlock_sha1_hasher_create);
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free(this);
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}
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/*
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* see header file
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*/
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plugin_t *plugin_create()
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{
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private_padlock_plugin_t *this = malloc_thing(private_padlock_plugin_t);
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this->public.plugin.destroy = (void(*)(plugin_t*))destroy;
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lib->crypto->add_crypter(lib->crypto, ENCR_AES_CBC,
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(crypter_constructor_t)padlock_aes_crypter_create);
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lib->crypto->add_hasher(lib->crypto, HASH_SHA1,
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(hasher_constructor_t)padlock_sha1_hasher_create);
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return &this->public.plugin;
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}
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@ -0,0 +1,47 @@
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/*
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* Copyright (C) 2008 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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/**
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* @defgroup padlock_p padlock
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* @ingroup plugins
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*
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* @defgroup padlock_plugin padlock_plugin
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* @{ @ingroup padlock_p
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*/
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#ifndef PADLOCK_PLUGIN_H_
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#define PADLOCK_PLUGIN_H_
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#include <plugins/plugin.h>
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typedef struct padlock_plugin_t padlock_plugin_t;
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/**
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* Plugin implementing VIA Padlock crypto functions
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*/
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struct padlock_plugin_t {
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/**
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* implements plugin interface
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*/
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plugin_t plugin;
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};
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/**
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* Create a padlock_plugin instance.
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*/
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plugin_t *plugin_create();
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#endif /* PADLOCK_PLUGIN_H_ @}*/
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@ -0,0 +1,177 @@
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/*
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* Copyright (C) 2008 Thomas Kallenberg
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* Copyright (C) 2008 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
|
||||
* 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>.
|
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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
|
||||
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
|
||||
* for more details.
|
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*
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* $Id$
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*/
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#include <string.h>
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#include <arpa/inet.h>
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#include <byteswap.h>
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#include "padlock_sha1_hasher.h"
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#define PADLOCK_ALIGN __attribute__ ((__aligned__(16)))
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typedef struct private_padlock_sha1_hasher_t private_padlock_sha1_hasher_t;
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/**
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* Private data structure with hasing context.
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*/
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struct private_padlock_sha1_hasher_t {
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/**
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* Public interface for this hasher.
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*/
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padlock_sha1_hasher_t public;
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/**
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* data collected to hash
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*/
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chunk_t data;
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};
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/**
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* Invoke the actual padlock sha1() operation
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*/
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static void padlock_sha1(int len, u_char *in, u_char *out)
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{
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/* rep xsha1 */
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asm volatile (
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".byte 0xf3, 0x0f, 0xa6, 0xc8"
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: "+S"(in), "+D"(out)
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: "c"(len), "a"(0));
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}
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/**
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||||
* sha1() a buffer of data into digest
|
||||
*/
|
||||
static void sha1(chunk_t data, u_int32_t *digest)
|
||||
{
|
||||
u_int32_t hash[128] PADLOCK_ALIGN;
|
||||
|
||||
hash[0] = 0x67452301;
|
||||
hash[1] = 0xefcdab89;
|
||||
hash[2] = 0x98badcfe;
|
||||
hash[3] = 0x10325476;
|
||||
hash[4] = 0xc3d2e1f0;
|
||||
|
||||
padlock_sha1(data.len, data.ptr, (u_char*)hash);
|
||||
|
||||
digest[0] = bswap_32(hash[0]);
|
||||
digest[1] = bswap_32(hash[1]);
|
||||
digest[2] = bswap_32(hash[2]);
|
||||
digest[3] = bswap_32(hash[3]);
|
||||
digest[4] = bswap_32(hash[4]);
|
||||
}
|
||||
|
||||
/**
|
||||
* append data to the to-be-hashed buffer
|
||||
*/
|
||||
static void append_data(private_padlock_sha1_hasher_t *this, chunk_t data)
|
||||
{
|
||||
this->data.ptr = realloc(this->data.ptr, this->data.len + data.len);
|
||||
memcpy(this->data.ptr + this->data.len, data.ptr, data.len);
|
||||
this->data.len += data.len;
|
||||
}
|
||||
|
||||
/**
|
||||
* Implementation of hasher_t.reset.
|
||||
*/
|
||||
static void reset(private_padlock_sha1_hasher_t *this)
|
||||
{
|
||||
chunk_free(&this->data);
|
||||
}
|
||||
|
||||
/**
|
||||
* Implementation of hasher_t.get_hash.
|
||||
*/
|
||||
static void get_hash(private_padlock_sha1_hasher_t *this, chunk_t chunk,
|
||||
u_int8_t *hash)
|
||||
{
|
||||
if (hash)
|
||||
{
|
||||
if (this->data.len)
|
||||
{
|
||||
append_data(this, chunk);
|
||||
sha1(this->data, (u_int32_t*)hash);
|
||||
}
|
||||
else
|
||||
{ /* hash directly if no previous data found */
|
||||
sha1(chunk, (u_int32_t*)hash);
|
||||
}
|
||||
reset(this);
|
||||
}
|
||||
else
|
||||
{
|
||||
append_data(this, chunk);
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Implementation of hasher_t.allocate_hash.
|
||||
*/
|
||||
static void allocate_hash(private_padlock_sha1_hasher_t *this, chunk_t chunk,
|
||||
chunk_t *hash)
|
||||
{
|
||||
if (hash)
|
||||
{
|
||||
*hash = chunk_alloc(HASH_SIZE_SHA1);
|
||||
get_hash(this, chunk, hash->ptr);
|
||||
}
|
||||
else
|
||||
{
|
||||
get_hash(this, chunk, NULL);
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Implementation of hasher_t.get_hash_size.
|
||||
*/
|
||||
static size_t get_hash_size(private_padlock_sha1_hasher_t *this)
|
||||
{
|
||||
return HASH_SIZE_SHA1;
|
||||
}
|
||||
|
||||
/**
|
||||
* Implementation of hasher_t.destroy.
|
||||
*/
|
||||
static void destroy(private_padlock_sha1_hasher_t *this)
|
||||
{
|
||||
free(this->data.ptr);
|
||||
free(this);
|
||||
}
|
||||
|
||||
/*
|
||||
* Described in header.
|
||||
*/
|
||||
padlock_sha1_hasher_t *padlock_sha1_hasher_create(hash_algorithm_t algo)
|
||||
{
|
||||
private_padlock_sha1_hasher_t *this;
|
||||
|
||||
if (algo != HASH_SHA1)
|
||||
{
|
||||
return NULL;
|
||||
}
|
||||
|
||||
this = malloc_thing(private_padlock_sha1_hasher_t);
|
||||
this->public.hasher_interface.get_hash = (void (*) (hasher_t*, chunk_t, u_int8_t*))get_hash;
|
||||
this->public.hasher_interface.allocate_hash = (void (*) (hasher_t*, chunk_t, chunk_t*))allocate_hash;
|
||||
this->public.hasher_interface.get_hash_size = (size_t (*) (hasher_t*))get_hash_size;
|
||||
this->public.hasher_interface.reset = (void (*) (hasher_t*))reset;
|
||||
this->public.hasher_interface.destroy = (void (*) (hasher_t*))destroy;
|
||||
|
||||
this->data = chunk_empty;
|
||||
|
||||
return &(this->public);
|
||||
}
|
||||
|
|
@ -0,0 +1,48 @@
|
|||
/*
|
||||
* Copyright (C) 2008 Thomas Kallenberg
|
||||
* Copyright (C) 2008 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 sha1_hasher sha1_hasher
|
||||
* @{ @ingroup sha1_p
|
||||
*/
|
||||
|
||||
#ifndef PADLOCK_SHA1_HASHER_H_
|
||||
#define PADLOCK_SHA1_HASHER_H_
|
||||
|
||||
typedef struct padlock_sha1_hasher_t padlock_sha1_hasher_t;
|
||||
|
||||
#include <crypto/hashers/hasher.h>
|
||||
|
||||
/**
|
||||
* Implementation of hasher_t interface using the SHA1 algorithm.
|
||||
*/
|
||||
struct padlock_sha1_hasher_t {
|
||||
|
||||
/**
|
||||
* Implements hasher_t interface.
|
||||
*/
|
||||
hasher_t hasher_interface;
|
||||
};
|
||||
|
||||
/**
|
||||
* Creates a new sha1_hasher_t.
|
||||
*
|
||||
* @param algo algorithm, must be HASH_SHA1
|
||||
* @return sha1_hasher_t object
|
||||
*/
|
||||
padlock_sha1_hasher_t *padlock_sha1_hasher_create(hash_algorithm_t algo);
|
||||
|
||||
#endif /*SHA1_HASHER_H_ @}*/
|
||||
Loading…
Reference in New Issue