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92 lines
3.1 KiB
C
92 lines
3.1 KiB
C
/* $Id: openssl-compat.h,v 1.9 2007/06/14 13:38:39 dtucker Exp $ */
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/*
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* Copyright (c) 2005 Darren Tucker <dtucker@zip.com.au>
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
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* IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
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* OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#include "includes.h"
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#include <openssl/evp.h>
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#if OPENSSL_VERSION_NUMBER < 0x00906000L
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# define SSH_OLD_EVP
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# define EVP_CIPHER_CTX_get_app_data(e) ((e)->app_data)
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# define USE_BUILTIN_RIJNDAEL
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#endif
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#if (OPENSSL_VERSION_NUMBER < 0x00907000L) || defined(OPENSSL_LOBOTOMISED_AES)
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# define USE_BUILTIN_RIJNDAEL
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#endif
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#ifdef USE_BUILTIN_RIJNDAEL
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# include "rijndael.h"
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# define AES_KEY rijndael_ctx
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# define AES_BLOCK_SIZE 16
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# define AES_encrypt(a, b, c) rijndael_encrypt(c, a, b)
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# define AES_set_encrypt_key(a, b, c) rijndael_set_key(c, (char *)a, b, 1)
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# define EVP_aes_128_cbc evp_rijndael
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# define EVP_aes_192_cbc evp_rijndael
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# define EVP_aes_256_cbc evp_rijndael
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extern const EVP_CIPHER *evp_rijndael(void);
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extern void ssh_rijndael_iv(EVP_CIPHER_CTX *, int, u_char *, u_int);
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#endif
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#if !defined(EVP_CTRL_SET_ACSS_MODE)
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# if (OPENSSL_VERSION_NUMBER >= 0x00907000L)
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# define USE_CIPHER_ACSS 1
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extern const EVP_CIPHER *evp_acss(void);
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# define EVP_acss evp_acss
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# else
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# define EVP_acss NULL
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# endif
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#endif
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/* OpenSSL 0.9.8e returns cipher key len not context key len */
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#if (OPENSSL_VERSION_NUMBER == 0x0090805fL)
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# define EVP_CIPHER_CTX_key_length(c) ((c)->key_len)
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#endif
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/*
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* We overload some of the OpenSSL crypto functions with ssh_* equivalents
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* which cater for older and/or less featureful OpenSSL version.
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*
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* In order for the compat library to call the real functions, it must
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* define SSH_DONT_OVERLOAD_OPENSSL_FUNCS before including this file and
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* implement the ssh_* equivalents.
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*/
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#ifndef SSH_DONT_OVERLOAD_OPENSSL_FUNCS
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# ifdef SSH_OLD_EVP
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# ifdef EVP_Cipher
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# undef EVP_Cipher
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# endif
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# define EVP_CipherInit(a,b,c,d,e) ssh_EVP_CipherInit((a),(b),(c),(d),(e))
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# define EVP_Cipher(a,b,c,d) ssh_EVP_Cipher((a),(b),(c),(d))
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# define EVP_CIPHER_CTX_cleanup(a) ssh_EVP_CIPHER_CTX_cleanup((a))
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# endif /* SSH_OLD_EVP */
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# ifdef USE_OPENSSL_ENGINE
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# ifdef SSLeay_add_all_algorithms
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# undef SSLeay_add_all_algorithms
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# endif
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# define SSLeay_add_all_algorithms() ssh_SSLeay_add_all_algorithms()
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#endif
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int ssh_EVP_CipherInit(EVP_CIPHER_CTX *, const EVP_CIPHER *, unsigned char *,
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unsigned char *, int);
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int ssh_EVP_Cipher(EVP_CIPHER_CTX *, char *, char *, int);
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int ssh_EVP_CIPHER_CTX_cleanup(EVP_CIPHER_CTX *);
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void ssh_SSLeay_add_all_algorithms(void);
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#endif /* SSH_DONT_OVERLOAD_OPENSSL_FUNCS */
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