812 lines
13 KiB
C
812 lines
13 KiB
C
/*
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* Copyright (c) 2006 - 2008 Kungliga Tekniska Högskolan
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* (Royal Institute of Technology, Stockholm, Sweden).
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* 3. Neither the name of the Institute nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <config.h>
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#define HC_DEPRECATED
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#include <sys/types.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <assert.h>
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#include <evp.h>
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#include <evp-hcrypto.h>
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#include <krb5-types.h>
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#include <des.h>
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#include "camellia.h"
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#include <aes.h>
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#include <rc2.h>
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#include <rc4.h>
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#include <sha.h>
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#include <md2.h>
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#include <md4.h>
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#include <md5.h>
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/*
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*
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*/
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static int
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aes_init(EVP_CIPHER_CTX *ctx,
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const unsigned char * key,
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const unsigned char * iv,
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int encp)
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{
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AES_KEY *k = ctx->cipher_data;
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if (ctx->encrypt)
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AES_set_encrypt_key(key, ctx->cipher->key_len * 8, k);
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else
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AES_set_decrypt_key(key, ctx->cipher->key_len * 8, k);
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return 1;
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}
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static int
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aes_do_cipher(EVP_CIPHER_CTX *ctx,
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unsigned char *out,
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const unsigned char *in,
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unsigned int size)
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{
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AES_KEY *k = ctx->cipher_data;
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if (ctx->flags & EVP_CIPH_CFB8_MODE)
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AES_cfb8_encrypt(in, out, size, k, ctx->iv, ctx->encrypt);
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else
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AES_cbc_encrypt(in, out, size, k, ctx->iv, ctx->encrypt);
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return 1;
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}
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/**
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* The AES-128 cipher type (hcrypto)
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*
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* @return the AES-128 EVP_CIPHER pointer.
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*
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* @ingroup hcrypto_evp
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*/
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const EVP_CIPHER *
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EVP_hcrypto_aes_128_cbc(void)
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{
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static const EVP_CIPHER aes_128_cbc = {
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0,
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16,
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16,
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16,
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EVP_CIPH_CBC_MODE,
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aes_init,
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aes_do_cipher,
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NULL,
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sizeof(AES_KEY),
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NULL,
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NULL,
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NULL,
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NULL
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};
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return &aes_128_cbc;
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}
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/**
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* The AES-192 cipher type (hcrypto)
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*
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* @return the AES-192 EVP_CIPHER pointer.
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*
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* @ingroup hcrypto_evp
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*/
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const EVP_CIPHER *
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EVP_hcrypto_aes_192_cbc(void)
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{
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static const EVP_CIPHER aes_192_cbc = {
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0,
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16,
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24,
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16,
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EVP_CIPH_CBC_MODE,
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aes_init,
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aes_do_cipher,
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NULL,
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sizeof(AES_KEY),
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NULL,
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NULL,
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NULL,
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NULL
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};
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return &aes_192_cbc;
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}
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/**
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* The AES-256 cipher type (hcrypto)
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*
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* @return the AES-256 EVP_CIPHER pointer.
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*
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* @ingroup hcrypto_evp
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*/
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const EVP_CIPHER *
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EVP_hcrypto_aes_256_cbc(void)
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{
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static const EVP_CIPHER aes_256_cbc = {
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0,
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16,
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32,
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16,
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EVP_CIPH_CBC_MODE,
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aes_init,
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aes_do_cipher,
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NULL,
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sizeof(AES_KEY),
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NULL,
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NULL,
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NULL,
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NULL
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};
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return &aes_256_cbc;
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}
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/**
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* The AES-128 CFB8 cipher type (hcrypto)
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*
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* @return the AES-128 EVP_CIPHER pointer.
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*
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* @ingroup hcrypto_evp
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*/
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const EVP_CIPHER *
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EVP_hcrypto_aes_128_cfb8(void)
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{
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static const EVP_CIPHER aes_128_cfb8 = {
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0,
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1,
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16,
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16,
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EVP_CIPH_CFB8_MODE,
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aes_init,
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aes_do_cipher,
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NULL,
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sizeof(AES_KEY),
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NULL,
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NULL,
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NULL,
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NULL
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};
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return &aes_128_cfb8;
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}
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/**
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* The AES-192 CFB8 cipher type (hcrypto)
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*
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* @return the AES-192 EVP_CIPHER pointer.
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*
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* @ingroup hcrypto_evp
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*/
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const EVP_CIPHER *
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EVP_hcrypto_aes_192_cfb8(void)
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{
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static const EVP_CIPHER aes_192_cfb8 = {
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0,
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1,
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24,
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16,
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EVP_CIPH_CFB8_MODE,
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aes_init,
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aes_do_cipher,
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NULL,
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sizeof(AES_KEY),
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NULL,
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NULL,
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NULL,
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NULL
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};
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return &aes_192_cfb8;
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}
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/**
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* The AES-256 CFB8 cipher type (hcrypto)
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*
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* @return the AES-256 EVP_CIPHER pointer.
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*
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* @ingroup hcrypto_evp
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*/
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const EVP_CIPHER *
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EVP_hcrypto_aes_256_cfb8(void)
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{
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static const EVP_CIPHER aes_256_cfb8 = {
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0,
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1,
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32,
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16,
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EVP_CIPH_CFB8_MODE,
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aes_init,
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aes_do_cipher,
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NULL,
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sizeof(AES_KEY),
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NULL,
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NULL,
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NULL,
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NULL
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};
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return &aes_256_cfb8;
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}
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/**
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* The message digest SHA256 - hcrypto
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*
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* @return the message digest type.
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*
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* @ingroup hcrypto_evp
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*/
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const EVP_MD *
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EVP_hcrypto_sha256(void)
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{
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static const struct hc_evp_md sha256 = {
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32,
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64,
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sizeof(SHA256_CTX),
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(hc_evp_md_init)SHA256_Init,
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(hc_evp_md_update)SHA256_Update,
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(hc_evp_md_final)SHA256_Final,
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NULL
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};
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return &sha256;
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}
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/**
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* The message digest SHA1 - hcrypto
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*
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* @return the message digest type.
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*
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* @ingroup hcrypto_evp
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*/
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const EVP_MD *
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EVP_hcrypto_sha1(void)
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{
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static const struct hc_evp_md sha1 = {
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20,
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64,
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sizeof(SHA_CTX),
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(hc_evp_md_init)SHA1_Init,
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(hc_evp_md_update)SHA1_Update,
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(hc_evp_md_final)SHA1_Final,
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NULL
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};
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return &sha1;
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}
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/**
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* The message digest MD5 - hcrypto
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*
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* @return the message digest type.
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*
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* @ingroup hcrypto_evp
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*/
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const EVP_MD *
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EVP_hcrypto_md5(void)
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{
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static const struct hc_evp_md md5 = {
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16,
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64,
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sizeof(MD5_CTX),
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(hc_evp_md_init)MD5_Init,
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(hc_evp_md_update)MD5_Update,
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(hc_evp_md_final)MD5_Final,
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NULL
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};
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return &md5;
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}
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/**
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* The message digest MD4 - hcrypto
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*
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* @return the message digest type.
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*
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* @ingroup hcrypto_evp
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*/
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const EVP_MD *
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EVP_hcrypto_md4(void)
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{
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static const struct hc_evp_md md4 = {
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16,
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64,
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sizeof(MD4_CTX),
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(hc_evp_md_init)MD4_Init,
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(hc_evp_md_update)MD4_Update,
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(hc_evp_md_final)MD4_Final,
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NULL
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};
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return &md4;
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}
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/**
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* The message digest MD2 - hcrypto
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*
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* @return the message digest type.
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*
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* @ingroup hcrypto_evp
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*/
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const EVP_MD *
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EVP_hcrypto_md2(void)
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{
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static const struct hc_evp_md md2 = {
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16,
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16,
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sizeof(MD2_CTX),
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(hc_evp_md_init)MD2_Init,
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(hc_evp_md_update)MD2_Update,
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(hc_evp_md_final)MD2_Final,
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NULL
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};
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return &md2;
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}
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/*
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*
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*/
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static int
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des_cbc_init(EVP_CIPHER_CTX *ctx,
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const unsigned char * key,
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const unsigned char * iv,
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int encp)
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{
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DES_key_schedule *k = ctx->cipher_data;
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DES_cblock deskey;
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memcpy(&deskey, key, sizeof(deskey));
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DES_set_key_unchecked(&deskey, k);
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return 1;
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}
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static int
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des_cbc_do_cipher(EVP_CIPHER_CTX *ctx,
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unsigned char *out,
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const unsigned char *in,
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unsigned int size)
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{
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DES_key_schedule *k = ctx->cipher_data;
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DES_cbc_encrypt(in, out, size,
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k, (DES_cblock *)ctx->iv, ctx->encrypt);
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return 1;
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}
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/**
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* The DES cipher type
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*
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* @return the DES-CBC EVP_CIPHER pointer.
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*
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* @ingroup hcrypto_evp
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*/
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const EVP_CIPHER *
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EVP_hcrypto_des_cbc(void)
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{
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static const EVP_CIPHER des_cbc = {
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0,
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8,
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8,
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8,
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EVP_CIPH_CBC_MODE,
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des_cbc_init,
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des_cbc_do_cipher,
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NULL,
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sizeof(DES_key_schedule),
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NULL,
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NULL,
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NULL,
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NULL
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};
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return &des_cbc;
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}
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/*
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*
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*/
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struct des_ede3_cbc {
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DES_key_schedule ks[3];
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};
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static int
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des_ede3_cbc_init(EVP_CIPHER_CTX *ctx,
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const unsigned char * key,
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const unsigned char * iv,
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int encp)
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{
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struct des_ede3_cbc *k = ctx->cipher_data;
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DES_cblock deskey;
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memcpy(&deskey, key, sizeof(deskey));
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DES_set_odd_parity(&deskey);
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DES_set_key_unchecked(&deskey, &k->ks[0]);
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memcpy(&deskey, key + 8, sizeof(deskey));
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DES_set_odd_parity(&deskey);
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DES_set_key_unchecked(&deskey, &k->ks[1]);
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memcpy(&deskey, key + 16, sizeof(deskey));
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DES_set_odd_parity(&deskey);
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DES_set_key_unchecked(&deskey, &k->ks[2]);
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return 1;
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}
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static int
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des_ede3_cbc_do_cipher(EVP_CIPHER_CTX *ctx,
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unsigned char *out,
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const unsigned char *in,
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unsigned int size)
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{
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struct des_ede3_cbc *k = ctx->cipher_data;
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DES_ede3_cbc_encrypt(in, out, size,
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&k->ks[0], &k->ks[1], &k->ks[2],
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(DES_cblock *)ctx->iv, ctx->encrypt);
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return 1;
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}
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/**
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* The tripple DES cipher type - hcrypto
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*
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* @return the DES-EDE3-CBC EVP_CIPHER pointer.
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*
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* @ingroup hcrypto_evp
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*/
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const EVP_CIPHER *
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EVP_hcrypto_des_ede3_cbc(void)
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{
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static const EVP_CIPHER des_ede3_cbc = {
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0,
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8,
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24,
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8,
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EVP_CIPH_CBC_MODE,
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des_ede3_cbc_init,
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des_ede3_cbc_do_cipher,
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NULL,
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sizeof(struct des_ede3_cbc),
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NULL,
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NULL,
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NULL,
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NULL
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};
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return &des_ede3_cbc;
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}
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/*
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*
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*/
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struct rc2_cbc {
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unsigned int maximum_effective_key;
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RC2_KEY key;
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};
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static int
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rc2_init(EVP_CIPHER_CTX *ctx,
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const unsigned char * key,
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const unsigned char * iv,
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int encp)
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{
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struct rc2_cbc *k = ctx->cipher_data;
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k->maximum_effective_key = EVP_CIPHER_CTX_key_length(ctx) * 8;
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RC2_set_key(&k->key,
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EVP_CIPHER_CTX_key_length(ctx),
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key,
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k->maximum_effective_key);
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return 1;
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}
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static int
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rc2_do_cipher(EVP_CIPHER_CTX *ctx,
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unsigned char *out,
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const unsigned char *in,
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unsigned int size)
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{
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struct rc2_cbc *k = ctx->cipher_data;
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RC2_cbc_encrypt(in, out, size, &k->key, ctx->iv, ctx->encrypt);
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return 1;
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}
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/**
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* The RC2 cipher type - hcrypto
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*
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* @return the RC2 EVP_CIPHER pointer.
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*
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* @ingroup hcrypto_evp
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*/
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const EVP_CIPHER *
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EVP_hcrypto_rc2_cbc(void)
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{
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static const EVP_CIPHER rc2_cbc = {
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0,
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RC2_BLOCK_SIZE,
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RC2_KEY_LENGTH,
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RC2_BLOCK_SIZE,
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EVP_CIPH_CBC_MODE|EVP_CIPH_VARIABLE_LENGTH,
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rc2_init,
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rc2_do_cipher,
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NULL,
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sizeof(struct rc2_cbc),
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NULL,
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NULL,
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NULL,
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NULL
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};
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return &rc2_cbc;
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}
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|
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/**
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* The RC2-40 cipher type
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*
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* @return the RC2-40 EVP_CIPHER pointer.
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*
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* @ingroup hcrypto_evp
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*/
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const EVP_CIPHER *
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EVP_hcrypto_rc2_40_cbc(void)
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{
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static const EVP_CIPHER rc2_40_cbc = {
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0,
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RC2_BLOCK_SIZE,
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5,
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RC2_BLOCK_SIZE,
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EVP_CIPH_CBC_MODE,
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rc2_init,
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rc2_do_cipher,
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NULL,
|
|
sizeof(struct rc2_cbc),
|
|
NULL,
|
|
NULL,
|
|
NULL,
|
|
NULL
|
|
};
|
|
return &rc2_40_cbc;
|
|
}
|
|
|
|
/**
|
|
* The RC2-64 cipher type
|
|
*
|
|
* @return the RC2-64 EVP_CIPHER pointer.
|
|
*
|
|
* @ingroup hcrypto_evp
|
|
*/
|
|
|
|
const EVP_CIPHER *
|
|
EVP_hcrypto_rc2_64_cbc(void)
|
|
{
|
|
static const EVP_CIPHER rc2_64_cbc = {
|
|
0,
|
|
RC2_BLOCK_SIZE,
|
|
8,
|
|
RC2_BLOCK_SIZE,
|
|
EVP_CIPH_CBC_MODE,
|
|
rc2_init,
|
|
rc2_do_cipher,
|
|
NULL,
|
|
sizeof(struct rc2_cbc),
|
|
NULL,
|
|
NULL,
|
|
NULL,
|
|
NULL
|
|
};
|
|
return &rc2_64_cbc;
|
|
}
|
|
|
|
static int
|
|
camellia_init(EVP_CIPHER_CTX *ctx,
|
|
const unsigned char * key,
|
|
const unsigned char * iv,
|
|
int encp)
|
|
{
|
|
CAMELLIA_KEY *k = ctx->cipher_data;
|
|
k->bits = ctx->cipher->key_len * 8;
|
|
CAMELLIA_set_key(key, ctx->cipher->key_len * 8, k);
|
|
return 1;
|
|
}
|
|
|
|
static int
|
|
camellia_do_cipher(EVP_CIPHER_CTX *ctx,
|
|
unsigned char *out,
|
|
const unsigned char *in,
|
|
unsigned int size)
|
|
{
|
|
CAMELLIA_KEY *k = ctx->cipher_data;
|
|
CAMELLIA_cbc_encrypt(in, out, size, k, ctx->iv, ctx->encrypt);
|
|
return 1;
|
|
}
|
|
|
|
/**
|
|
* The Camellia-128 cipher type - hcrypto
|
|
*
|
|
* @return the Camellia-128 EVP_CIPHER pointer.
|
|
*
|
|
* @ingroup hcrypto_evp
|
|
*/
|
|
|
|
const EVP_CIPHER *
|
|
EVP_hcrypto_camellia_128_cbc(void)
|
|
{
|
|
static const EVP_CIPHER cipher = {
|
|
0,
|
|
16,
|
|
16,
|
|
16,
|
|
EVP_CIPH_CBC_MODE,
|
|
camellia_init,
|
|
camellia_do_cipher,
|
|
NULL,
|
|
sizeof(CAMELLIA_KEY),
|
|
NULL,
|
|
NULL,
|
|
NULL,
|
|
NULL
|
|
};
|
|
return &cipher;
|
|
}
|
|
|
|
/**
|
|
* The Camellia-198 cipher type - hcrypto
|
|
*
|
|
* @return the Camellia-198 EVP_CIPHER pointer.
|
|
*
|
|
* @ingroup hcrypto_evp
|
|
*/
|
|
|
|
const EVP_CIPHER *
|
|
EVP_hcrypto_camellia_192_cbc(void)
|
|
{
|
|
static const EVP_CIPHER cipher = {
|
|
0,
|
|
16,
|
|
24,
|
|
16,
|
|
EVP_CIPH_CBC_MODE,
|
|
camellia_init,
|
|
camellia_do_cipher,
|
|
NULL,
|
|
sizeof(CAMELLIA_KEY),
|
|
NULL,
|
|
NULL,
|
|
NULL,
|
|
NULL
|
|
};
|
|
return &cipher;
|
|
}
|
|
|
|
/**
|
|
* The Camellia-256 cipher type - hcrypto
|
|
*
|
|
* @return the Camellia-256 EVP_CIPHER pointer.
|
|
*
|
|
* @ingroup hcrypto_evp
|
|
*/
|
|
|
|
const EVP_CIPHER *
|
|
EVP_hcrypto_camellia_256_cbc(void)
|
|
{
|
|
static const EVP_CIPHER cipher = {
|
|
0,
|
|
16,
|
|
32,
|
|
16,
|
|
EVP_CIPH_CBC_MODE,
|
|
camellia_init,
|
|
camellia_do_cipher,
|
|
NULL,
|
|
sizeof(CAMELLIA_KEY),
|
|
NULL,
|
|
NULL,
|
|
NULL,
|
|
NULL
|
|
};
|
|
return &cipher;
|
|
}
|
|
|
|
static int
|
|
rc4_init(EVP_CIPHER_CTX *ctx,
|
|
const unsigned char *key,
|
|
const unsigned char *iv,
|
|
int enc)
|
|
{
|
|
RC4_KEY *k = ctx->cipher_data;
|
|
RC4_set_key(k, ctx->key_len, key);
|
|
return 1;
|
|
}
|
|
|
|
static int
|
|
rc4_do_cipher(EVP_CIPHER_CTX *ctx,
|
|
unsigned char *out,
|
|
const unsigned char *in,
|
|
unsigned int size)
|
|
{
|
|
RC4_KEY *k = ctx->cipher_data;
|
|
RC4(k, size, in, out);
|
|
return 1;
|
|
}
|
|
|
|
const EVP_CIPHER *
|
|
EVP_hcrypto_rc4(void)
|
|
{
|
|
static const EVP_CIPHER rc4 = {
|
|
0,
|
|
1,
|
|
16,
|
|
0,
|
|
EVP_CIPH_STREAM_CIPHER|EVP_CIPH_VARIABLE_LENGTH,
|
|
rc4_init,
|
|
rc4_do_cipher,
|
|
NULL,
|
|
sizeof(RC4_KEY),
|
|
NULL,
|
|
NULL,
|
|
NULL,
|
|
NULL
|
|
};
|
|
return &rc4;
|
|
}
|
|
|
|
|
|
const EVP_CIPHER *
|
|
EVP_hcrypto_rc4_40(void)
|
|
{
|
|
static const EVP_CIPHER rc4_40 = {
|
|
0,
|
|
1,
|
|
5,
|
|
0,
|
|
EVP_CIPH_STREAM_CIPHER|EVP_CIPH_VARIABLE_LENGTH,
|
|
rc4_init,
|
|
rc4_do_cipher,
|
|
NULL,
|
|
sizeof(RC4_KEY),
|
|
NULL,
|
|
NULL,
|
|
NULL,
|
|
NULL
|
|
};
|
|
return &rc4_40;
|
|
}
|