libssh: libcrypto.h Source File

libssh 0.10.5 The SSH library

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libcrypto.h
1/*
2 * This file is part of the SSH Library
3 *
4 * Copyright (c) 2009 by Aris Adamantiadis
5 *
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
10 *
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
15 *
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with this library; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19 */
20
21#ifndef LIBCRYPTO_H_
22#define LIBCRYPTO_H_
23
24#include "config.h"
25
26#ifdef HAVE_LIBCRYPTO
27
28#include <openssl/dsa.h>
29#include <openssl/rsa.h>
30#include <openssl/sha.h>
31#include <openssl/md5.h>
32#include <openssl/hmac.h>
33#include <openssl/evp.h>
34#include <openssl/crypto.h>
35
36typedef EVP_MD_CTX* SHACTX;
37typedef EVP_MD_CTX* SHA256CTX;
38typedef EVP_MD_CTX* SHA384CTX;
39typedef EVP_MD_CTX* SHA512CTX;
40typedef EVP_MD_CTX* MD5CTX;
41typedef EVP_MD_CTX* HMACCTX;
42#ifdef HAVE_ECC
43typedef EVP_MD_CTX *EVPCTX;
44#else
45typedef void *EVPCTX;
46#endif
47
48#define SHA_DIGEST_LEN SHA_DIGEST_LENGTH
49#define SHA256_DIGEST_LEN SHA256_DIGEST_LENGTH
50#define SHA384_DIGEST_LEN SHA384_DIGEST_LENGTH
51#define SHA512_DIGEST_LEN SHA512_DIGEST_LENGTH
52#ifdef MD5_DIGEST_LEN
53 #undef MD5_DIGEST_LEN
54#endif
55#define MD5_DIGEST_LEN MD5_DIGEST_LENGTH
56
57#ifdef HAVE_OPENSSL_ECC
58#define EVP_DIGEST_LEN EVP_MAX_MD_SIZE
59#endif
60
61#include <openssl/bn.h>
62#include <openssl/opensslv.h>
63typedef BIGNUM* bignum;
64typedef const BIGNUM* const_bignum;
65typedef BN_CTX* bignum_CTX;
66
67#define bignum_new() BN_new()
68#define bignum_safe_free(num) do { \
69 if ((num) != NULL) { \
70 BN_clear_free((num)); \
71 (num)=NULL; \
72 } \
73 } while(0)
74#define bignum_set_word(bn,n) BN_set_word(bn,n)
75#define bignum_bin2bn(data, datalen, dest) \
76 do { \
77 (*dest) = BN_new(); \
78 if ((*dest) != NULL) { \
79 BN_bin2bn(data,datalen,(*dest)); \
80 } \
81 } while(0)
82#define bignum_bn2dec(num) BN_bn2dec(num)
83#define bignum_dec2bn(data, bn) BN_dec2bn(bn, data)
84#define bignum_hex2bn(data, bn) BN_hex2bn(bn, data)
85#define bignum_bn2hex(num, dest) (*dest)=(unsigned char *)BN_bn2hex(num)
86#define bignum_rand(rnd, bits) BN_rand(rnd, bits, 0, 1)
87#define bignum_rand_range(rnd, max) BN_rand_range(rnd, max)
88#define bignum_ctx_new() BN_CTX_new()
89#define bignum_ctx_free(num) BN_CTX_free(num)
90#define bignum_ctx_invalid(ctx) ((ctx) == NULL)
91#define bignum_mod_exp(dest,generator,exp,modulo,ctx) BN_mod_exp(dest,generator,exp,modulo,ctx)
92#define bignum_add(dest, a, b) BN_add(dest, a, b)
93#define bignum_sub(dest, a, b) BN_sub(dest, a, b)
94#define bignum_mod(dest, a, b, ctx) BN_mod(dest, a, b, ctx)
95#define bignum_num_bytes(num) (size_t)BN_num_bytes(num)
96#define bignum_num_bits(num) (size_t)BN_num_bits(num)
97#define bignum_is_bit_set(num,bit) BN_is_bit_set(num, (int)bit)
98#define bignum_bn2bin(num,len, ptr) BN_bn2bin(num, ptr)
99#define bignum_cmp(num1,num2) BN_cmp(num1,num2)
100#define bignum_rshift1(dest, src) BN_rshift1(dest, src)
101#define bignum_dup(orig, dest) do { \
102 if (*(dest) == NULL) { \
103 *(dest) = BN_dup(orig); \
104 } else { \
105 BN_copy(*(dest), orig); \
106 } \
107 } while(0)
108
109
110/* Returns true if the OpenSSL is operating in FIPS mode */
111#ifdef HAVE_OPENSSL_FIPS_MODE
112#define ssh_fips_mode() (FIPS_mode() != 0)
113#elif OPENSSL_VERSION_NUMBER >= 0x30000000L
114#define ssh_fips_mode() EVP_default_properties_is_fips_enabled(NULL)
115#else
116#define ssh_fips_mode() false
117#endif
118
119#endif /* HAVE_LIBCRYPTO */
120
121#endif /* LIBCRYPTO_H_ */