libssh 0.5.2

include/libssh/libgcrypt.h

00001 /*
00002  * This file is part of the SSH Library
00003  *
00004  * Copyright (c) 2009 by Aris Adamantiadis
00005  *
00006  * The SSH Library is free software; you can redistribute it and/or modify
00007  * it under the terms of the GNU Lesser General Public License as published by
00008  * the Free Software Foundation; either version 2.1 of the License, or (at your
00009  * option) any later version.
00010  *
00011  * The SSH Library is distributed in the hope that it will be useful, but
00012  * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
00013  * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public
00014  * License for more details.
00015  *
00016  * You should have received a copy of the GNU Lesser General Public License
00017  * along with the SSH Library; see the file COPYING.  If not, write to
00018  * the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
00019  * MA 02111-1307, USA.
00020  */
00021 
00022 #ifndef LIBGCRYPT_H_
00023 #define LIBGCRYPT_H_
00024 
00025 #include "config.h"
00026 
00027 #ifdef HAVE_LIBGCRYPT
00028 
00029 #include <gcrypt.h>
00030 typedef gcry_md_hd_t SHACTX;
00031 typedef gcry_md_hd_t MD5CTX;
00032 typedef gcry_md_hd_t HMACCTX;
00033 #define SHA_DIGEST_LEN 20
00034 #define MD5_DIGEST_LEN 16
00035 #define EVP_MAX_MD_SIZE 36
00036 
00037 typedef gcry_mpi_t bignum;
00038 
00039 #define bignum_new() gcry_mpi_new(0)
00040 #define bignum_free(num) gcry_mpi_release(num)
00041 #define bignum_set_word(bn,n) gcry_mpi_set_ui(bn,n)
00042 #define bignum_bin2bn(bn,datalen,data) gcry_mpi_scan(data,GCRYMPI_FMT_USG,bn,datalen,NULL)
00043 #define bignum_bn2dec(num) my_gcry_bn2dec(num)
00044 #define bignum_dec2bn(num, data) my_gcry_dec2bn(data, num)
00045 #define bignum_bn2hex(num,data) gcry_mpi_aprint(GCRYMPI_FMT_HEX,data,NULL,num)
00046 #define bignum_hex2bn(num,datalen,data) gcry_mpi_scan(num,GCRYMPI_FMT_HEX,data,datalen,NULL)
00047 #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)
00048 #define bignum_mod_exp(dest,generator,exp,modulo) gcry_mpi_powm(dest,generator,exp,modulo)
00049 #define bignum_num_bits(num) gcry_mpi_get_nbits(num)
00050 #define bignum_num_bytes(num) ((gcry_mpi_get_nbits(num)+7)/8)
00051 #define bignum_is_bit_set(num,bit) gcry_mpi_test_bit(num,bit)
00052 #define bignum_bn2bin(num,datalen,data) gcry_mpi_print(GCRYMPI_FMT_USG,data,datalen,NULL,num)
00053 #define bignum_cmp(num1,num2) gcry_mpi_cmp(num1,num2)
00054 
00055 
00056 #endif /* HAVE_LIBGCRYPT */
00057 
00058 struct crypto_struct *ssh_get_ciphertab(void);
00059 
00060 #endif /* LIBGCRYPT_H_ */