190 lines
5.3 KiB
C
190 lines
5.3 KiB
C
/* Copyright (c) 2004-2006, Sara Golemon <sarag@libssh2.org>
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms,
|
|
* with or without modification, are permitted provided
|
|
* that the following conditions are met:
|
|
*
|
|
* Redistributions of source code must retain the above
|
|
* copyright notice, this list of conditions and the
|
|
* following disclaimer.
|
|
*
|
|
* Redistributions in binary form must reproduce the above
|
|
* copyright notice, this list of conditions and the following
|
|
* disclaimer in the documentation and/or other materials
|
|
* provided with the distribution.
|
|
*
|
|
* Neither the name of the copyright holder nor the names
|
|
* of any other contributors may be used to endorse or
|
|
* promote products derived from this software without
|
|
* specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
|
|
* CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
|
|
* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
|
|
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
|
|
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
|
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
|
|
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
|
|
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
|
|
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
|
|
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
|
|
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
|
|
* USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
|
|
* OF SUCH DAMAGE.
|
|
*/
|
|
|
|
#include "libssh2_priv.h"
|
|
#include <openssl/evp.h>
|
|
|
|
#ifdef LIBSSH2_CRYPT_NONE
|
|
/* {{{ libssh2_crypt_none_crypt
|
|
* Minimalist cipher: VERY secure *wink*
|
|
*/
|
|
static int libssh2_crypt_none_crypt(LIBSSH2_SESSION *session, unsigned char *buf, void **abstract)
|
|
{
|
|
/* Do nothing to the data! */
|
|
return 0;
|
|
}
|
|
/* }}} */
|
|
|
|
static LIBSSH2_CRYPT_METHOD libssh2_crypt_method_none = {
|
|
"none",
|
|
8, /* blocksize (SSH2 defines minimum blocksize as 8) */
|
|
0, /* iv_len */
|
|
0, /* secret_len */
|
|
0, /* flags */
|
|
NULL,
|
|
libssh2_crypt_none_crypt,
|
|
NULL
|
|
};
|
|
#endif
|
|
|
|
static LIBSSH2_CRYPT_METHOD libssh2_crypt_method_3des_cbc = {
|
|
"3des-cbc",
|
|
8, /* blocksize */
|
|
8, /* initial value length */
|
|
24, /* secret length */
|
|
LIBSSH2_CRYPT_METHOD_FLAG_EVP,
|
|
NULL,
|
|
(void*)EVP_des_ede3_cbc,
|
|
NULL,
|
|
};
|
|
|
|
#if OPENSSL_VERSION_NUMBER >= 0x00907000L && !defined(OPENSSL_NO_AES)
|
|
static LIBSSH2_CRYPT_METHOD libssh2_crypt_method_aes128_cbc = {
|
|
"aes128-cbc",
|
|
16, /* blocksize */
|
|
16, /* initial value length */
|
|
16, /* secret length -- 16*8 == 128bit */
|
|
LIBSSH2_CRYPT_METHOD_FLAG_EVP,
|
|
NULL,
|
|
(void*)EVP_aes_128_cbc,
|
|
NULL,
|
|
};
|
|
|
|
static LIBSSH2_CRYPT_METHOD libssh2_crypt_method_aes192_cbc = {
|
|
"aes192-cbc",
|
|
16, /* blocksize */
|
|
16, /* initial value length */
|
|
24, /* secret length -- 24*8 == 192bit */
|
|
LIBSSH2_CRYPT_METHOD_FLAG_EVP,
|
|
NULL,
|
|
(void*)EVP_aes_192_cbc,
|
|
NULL,
|
|
};
|
|
|
|
static LIBSSH2_CRYPT_METHOD libssh2_crypt_method_aes256_cbc = {
|
|
"aes256-cbc",
|
|
16, /* blocksize */
|
|
16, /* initial value length */
|
|
32, /* secret length -- 32*8 == 256bit */
|
|
LIBSSH2_CRYPT_METHOD_FLAG_EVP,
|
|
NULL,
|
|
(void*)EVP_aes_256_cbc,
|
|
NULL,
|
|
};
|
|
|
|
/* rijndael-cbc@lysator.liu.se == aes256-cbc */
|
|
static LIBSSH2_CRYPT_METHOD libssh2_crypt_method_rijndael_cbc_lysator_liu_se = {
|
|
"rijndael-cbc@lysator.liu.se",
|
|
16, /* blocksize */
|
|
16, /* initial value length */
|
|
32, /* secret length -- 32*8 == 256bit */
|
|
LIBSSH2_CRYPT_METHOD_FLAG_EVP,
|
|
NULL,
|
|
(void*)EVP_aes_256_cbc,
|
|
NULL,
|
|
};
|
|
#endif /* OPENSSL_VERSION_NUMBER >= 0x00907000L && !defined(OPENSSL_NO_AES)*/
|
|
|
|
#ifndef OPENSSL_NO_BLOWFISH
|
|
static LIBSSH2_CRYPT_METHOD libssh2_crypt_method_blowfish_cbc = {
|
|
"blowfish-cbc",
|
|
8, /* blocksize */
|
|
8, /* initial value length */
|
|
16, /* secret length */
|
|
LIBSSH2_CRYPT_METHOD_FLAG_EVP,
|
|
NULL,
|
|
(void*)EVP_bf_cbc,
|
|
NULL,
|
|
};
|
|
#endif /* ! OPENSSL_NO_BLOWFISH */
|
|
|
|
#ifndef OPENSSL_NO_CAST
|
|
static LIBSSH2_CRYPT_METHOD libssh2_crypt_method_cast128_cbc = {
|
|
"cast128-cbc",
|
|
8, /* blocksize */
|
|
8, /* initial value length */
|
|
16, /* secret length */
|
|
LIBSSH2_CRYPT_METHOD_FLAG_EVP,
|
|
NULL,
|
|
(void*)EVP_cast5_cbc,
|
|
NULL,
|
|
};
|
|
#endif /* ! OPENSSL_NO_CAST */
|
|
|
|
#ifndef OPENSSL_NO_RC4
|
|
static LIBSSH2_CRYPT_METHOD libssh2_crypt_method_arcfour = {
|
|
"arcfour",
|
|
8, /* blocksize */
|
|
8, /* initial value length */
|
|
16, /* secret length */
|
|
LIBSSH2_CRYPT_METHOD_FLAG_EVP,
|
|
NULL,
|
|
(void*)EVP_rc4,
|
|
NULL,
|
|
};
|
|
#endif /* ! OPENSSL_NO_RC4 */
|
|
|
|
static LIBSSH2_CRYPT_METHOD *_libssh2_crypt_methods[] = {
|
|
#if OPENSSL_VERSION_NUMBER >= 0x00907000L && !defined(OPENSSL_NO_AES)
|
|
&libssh2_crypt_method_aes256_cbc,
|
|
&libssh2_crypt_method_rijndael_cbc_lysator_liu_se, /* == aes256-cbc */
|
|
&libssh2_crypt_method_aes192_cbc,
|
|
&libssh2_crypt_method_aes128_cbc,
|
|
#endif /* OPENSSL_VERSION_NUMBER >= 0x00907000L && !defined(OPENSSL_NO_AES) */
|
|
#ifndef OPENSSL_NO_BLOWFISH
|
|
&libssh2_crypt_method_blowfish_cbc,
|
|
#endif /* ! OPENSSL_NO_BLOWFISH */
|
|
#ifndef OPENSSL_NO_RC4
|
|
&libssh2_crypt_method_arcfour,
|
|
#endif /* ! OPENSSL_NO_RC4 */
|
|
#ifndef OPENSSL_NO_CAST
|
|
&libssh2_crypt_method_cast128_cbc,
|
|
#endif /* ! OPENSSL_NO_CAST */
|
|
#ifndef OPENSSL_NO_DES
|
|
&libssh2_crypt_method_3des_cbc,
|
|
#endif /* ! OPENSSL_NO_DES */
|
|
#ifdef LIBSSH2_CRYPT_NONE
|
|
&libssh2_crypt_method_none,
|
|
#endif
|
|
NULL
|
|
};
|
|
|
|
/* Expose to kex.c */
|
|
LIBSSH2_CRYPT_METHOD **libssh2_crypt_methods(void) {
|
|
return _libssh2_crypt_methods;
|
|
}
|