mirror of
https://github.com/libssh2/libssh2.git
synced 2025-11-06 20:49:29 +03:00
Initial revision
This commit is contained in:
Sara Golemon
189
src/crypt.c
Normal file
189
src/crypt.c
Normal file
@@ -0,0 +1,189 @@
|
||||
/* Copyright (c) 2004, Sara Golemon <sarag@users.sourceforge.net>
|
||||
* 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;
|
||||
}
|
||||
Reference in New Issue
Block a user