diff options
Diffstat (limited to 'mpaux.c')
| -rw-r--r-- | mpaux.c | 68 |
1 files changed, 33 insertions, 35 deletions
@@ -1,21 +1,24 @@ /* - -mpaux.c - -Author: Tatu Ylonen <ylo@cs.hut.fi> - -Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland - All rights reserved - -Created: Sun Jul 16 04:29:30 1995 ylo - -This file contains various auxiliary functions related to multiple -precision integers. - + * + * mpaux.c + * + * Author: Tatu Ylonen <ylo@cs.hut.fi> + * + * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland + * All rights reserved + * + * Created: Sun Jul 16 04:29:30 1995 ylo + * + * This file contains various auxiliary functions related to multiple + * precision integers. + * */ #include "includes.h" -RCSID("$Id: mpaux.c,v 1.6 1999/11/16 02:37:16 damien Exp $"); +RCSID("$Id: mpaux.c,v 1.7 1999/11/24 13:26:22 damien Exp $"); + +#include "getput.h" +#include "xmalloc.h" #ifdef HAVE_OPENSSL #include <openssl/bn.h> @@ -26,29 +29,24 @@ RCSID("$Id: mpaux.c,v 1.6 1999/11/16 02:37:16 damien Exp $"); #include <ssl/md5.h> #endif -#include "getput.h" -#include "xmalloc.h" - - void compute_session_id(unsigned char session_id[16], unsigned char cookie[8], - BIGNUM *host_key_n, - BIGNUM *session_key_n) + BIGNUM* host_key_n, + BIGNUM* session_key_n) { - unsigned int host_key_bits = BN_num_bits(host_key_n); - unsigned int session_key_bits = BN_num_bits(session_key_n); - unsigned int bytes = (host_key_bits + 7) / 8 + (session_key_bits + 7) / 8 + 8; - unsigned char *buf = xmalloc(bytes); - MD5_CTX md; - - BN_bn2bin(host_key_n, buf); - BN_bn2bin(session_key_n, buf + (host_key_bits + 7 ) / 8); - memcpy(buf + (host_key_bits + 7) / 8 + (session_key_bits + 7) / 8, - cookie, 8); - MD5_Init(&md); - MD5_Update(&md, buf, bytes); - MD5_Final(session_id, &md); - memset(buf, 0, bytes); - xfree(buf); + unsigned int host_key_bits = BN_num_bits(host_key_n); + unsigned int session_key_bits = BN_num_bits(session_key_n); + unsigned int bytes = (host_key_bits + 7) / 8 + (session_key_bits + 7) / 8 + 8; + unsigned char *buf = xmalloc(bytes); + MD5_CTX md; + + BN_bn2bin(host_key_n, buf); + BN_bn2bin(session_key_n, buf + (host_key_bits + 7) / 8); + memcpy(buf + (host_key_bits + 7) / 8 + (session_key_bits + 7) / 8, cookie, 8); + MD5_Init(&md); + MD5_Update(&md, buf, bytes); + MD5_Final(session_id, &md); + memset(buf, 0, bytes); + xfree(buf); } |