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52607c0f | 1 | /* $Id$ */ |
2 | ||
3 | /* | |
4 | * Copyright (c) 2005 Darren Tucker <dtucker@zip.com.au> | |
5 | * | |
6 | * Permission to use, copy, modify, and distribute this software for any | |
7 | * purpose with or without fee is hereby granted, provided that the above | |
8 | * copyright notice and this permission notice appear in all copies. | |
9 | * | |
10 | * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES | |
11 | * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF | |
12 | * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR | |
13 | * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES | |
14 | * WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER | |
15 | * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING | |
16 | * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. | |
17 | */ | |
18 | ||
19 | #include "includes.h" | |
20 | #include <openssl/evp.h> | |
21 | ||
22 | #if OPENSSL_VERSION_NUMBER < 0x00906000L | |
23 | # define SSH_OLD_EVP | |
24 | # define EVP_CIPHER_CTX_get_app_data(e) ((e)->app_data) | |
cc43e894 | 25 | #endif |
26 | ||
bff0be25 | 27 | #if (OPENSSL_VERSION_NUMBER < 0x00907000L) || defined(OPENSSL_LOBOTOMISED_AES) |
28 | # define USE_BUILTIN_RIJNDAEL | |
29 | #endif | |
30 | ||
cc43e894 | 31 | #ifdef USE_BUILTIN_RIJNDAEL |
32 | # include "rijndael.h" | |
33 | # define AES_KEY rijndael_ctx | |
34 | # define AES_BLOCK_SIZE 16 | |
35 | # define AES_encrypt(a, b, c) rijndael_encrypt(c, a, b) | |
36 | # define AES_set_encrypt_key(a, b, c) rijndael_set_key(c, (char *)a, b, 1) | |
52607c0f | 37 | # define EVP_aes_128_cbc evp_rijndael |
38 | # define EVP_aes_192_cbc evp_rijndael | |
39 | # define EVP_aes_256_cbc evp_rijndael | |
40 | extern const EVP_CIPHER *evp_rijndael(void); | |
41 | extern void ssh_rijndael_iv(EVP_CIPHER_CTX *, int, u_char *, u_int); | |
42 | #endif | |
43 | ||
44 | #if !defined(EVP_CTRL_SET_ACSS_MODE) | |
45 | # if (OPENSSL_VERSION_NUMBER >= 0x00907000L) | |
46 | # define USE_CIPHER_ACSS 1 | |
47 | extern const EVP_CIPHER *evp_acss(void); | |
48 | # define EVP_acss evp_acss | |
49 | # else | |
50 | # define EVP_acss NULL | |
51 | # endif | |
52 | #endif | |
53 | ||
190d9b26 | 54 | /* OpenSSL 0.9.8e returns cipher key len not context key len */ |
55 | #if (OPENSSL_VERSION_NUMBER == 0x0090805fL) | |
56 | # define EVP_CIPHER_CTX_key_length(c) ((c)->key_len) | |
57 | #endif | |
58 | ||
52607c0f | 59 | /* |
60e10887 | 60 | * We overload some of the OpenSSL crypto functions with ssh_* equivalents |
61 | * which cater for older and/or less featureful OpenSSL version. | |
62 | * | |
63 | * In order for the compat library to call the real functions, it must | |
64 | * define SSH_DONT_OVERLOAD_OPENSSL_FUNCS before including this file and | |
65 | * implement the ssh_* equivalents. | |
52607c0f | 66 | */ |
c7ad0d99 | 67 | #ifndef SSH_DONT_OVERLOAD_OPENSSL_FUNCS |
52607c0f | 68 | |
c7ad0d99 | 69 | # ifdef SSH_OLD_EVP |
52607c0f | 70 | # ifdef EVP_Cipher |
71 | # undef EVP_Cipher | |
72 | # endif | |
52607c0f | 73 | # define EVP_CipherInit(a,b,c,d,e) ssh_EVP_CipherInit((a),(b),(c),(d),(e)) |
74 | # define EVP_Cipher(a,b,c,d) ssh_EVP_Cipher((a),(b),(c),(d)) | |
75 | # define EVP_CIPHER_CTX_cleanup(a) ssh_EVP_CIPHER_CTX_cleanup((a)) | |
c7ad0d99 | 76 | # endif /* SSH_OLD_EVP */ |
77 | ||
15101d77 | 78 | # ifdef USE_OPENSSL_ENGINE |
79 | # ifdef SSLeay_add_all_algorithms | |
80 | # undef SSLeay_add_all_algorithms | |
81 | # endif | |
f5f25d17 | 82 | # define SSLeay_add_all_algorithms() ssh_SSLeay_add_all_algorithms() |
83 | # endif | |
52607c0f | 84 | |
85 | int ssh_EVP_CipherInit(EVP_CIPHER_CTX *, const EVP_CIPHER *, unsigned char *, | |
86 | unsigned char *, int); | |
87 | int ssh_EVP_Cipher(EVP_CIPHER_CTX *, char *, char *, int); | |
88 | int ssh_EVP_CIPHER_CTX_cleanup(EVP_CIPHER_CTX *); | |
0244ad55 | 89 | void ssh_SSLeay_add_all_algorithms(void); |
c7ad0d99 | 90 | #endif /* SSH_DONT_OVERLOAD_OPENSSL_FUNCS */ |