libssh  0.5.4
libgcrypt.h
1 /*
2  * This file is part of the SSH Library
3  *
4  * Copyright (c) 2009 by Aris Adamantiadis
5  *
6  * The SSH Library is free software; you can redistribute it and/or modify
7  * it under the terms of the GNU Lesser General Public License as published by
8  * the Free Software Foundation; either version 2.1 of the License, or (at your
9  * option) any later version.
10  *
11  * The SSH Library is distributed in the hope that it will be useful, but
12  * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
13  * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
14  * License for more details.
15  *
16  * You should have received a copy of the GNU Lesser General Public License
17  * along with the SSH Library; see the file COPYING. If not, write to
18  * the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
19  * MA 02111-1307, USA.
20  */
21 
22 #ifndef LIBGCRYPT_H_
23 #define LIBGCRYPT_H_
24 
25 #include "config.h"
26 
27 #ifdef HAVE_LIBGCRYPT
28 
29 #include <gcrypt.h>
30 typedef gcry_md_hd_t SHACTX;
31 typedef gcry_md_hd_t MD5CTX;
32 typedef gcry_md_hd_t HMACCTX;
33 #define SHA_DIGEST_LEN 20
34 #define MD5_DIGEST_LEN 16
35 #define EVP_MAX_MD_SIZE 36
36 
37 typedef gcry_mpi_t bignum;
38 
39 #define bignum_new() gcry_mpi_new(0)
40 #define bignum_free(num) gcry_mpi_release(num)
41 #define bignum_set_word(bn,n) gcry_mpi_set_ui(bn,n)
42 #define bignum_bin2bn(bn,datalen,data) gcry_mpi_scan(data,GCRYMPI_FMT_USG,bn,datalen,NULL)
43 #define bignum_bn2dec(num) my_gcry_bn2dec(num)
44 #define bignum_dec2bn(num, data) my_gcry_dec2bn(data, num)
45 #define bignum_bn2hex(num,data) gcry_mpi_aprint(GCRYMPI_FMT_HEX,data,NULL,num)
46 #define bignum_hex2bn(num,datalen,data) gcry_mpi_scan(num,GCRYMPI_FMT_HEX,data,datalen,NULL)
47 #define bignum_rand(num,bits) gcry_mpi_randomize(num,bits,GCRY_STRONG_RANDOM),gcry_mpi_set_bit(num,bits-1),gcry_mpi_set_bit(num,0)
48 #define bignum_mod_exp(dest,generator,exp,modulo) gcry_mpi_powm(dest,generator,exp,modulo)
49 #define bignum_num_bits(num) gcry_mpi_get_nbits(num)
50 #define bignum_num_bytes(num) ((gcry_mpi_get_nbits(num)+7)/8)
51 #define bignum_is_bit_set(num,bit) gcry_mpi_test_bit(num,bit)
52 #define bignum_bn2bin(num,datalen,data) gcry_mpi_print(GCRYMPI_FMT_USG,data,datalen,NULL,num)
53 #define bignum_cmp(num1,num2) gcry_mpi_cmp(num1,num2)
54 
55 
56 #endif /* HAVE_LIBGCRYPT */
57 
58 struct crypto_struct *ssh_get_ciphertab(void);
59 
60 #endif /* LIBGCRYPT_H_ */