mirror of
https://git.hardenedbsd.org/hardenedbsd/HardenedBSD.git
synced 2024-11-15 14:56:13 +01:00
72 lines
2.5 KiB
C
72 lines
2.5 KiB
C
/*
|
|
* Copyright (c) 1999 Markus Friedl. All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* 3. All advertising materials mentioning features or use of this software
|
|
* must display the following acknowledgement:
|
|
* This product includes software developed by Markus Friedl.
|
|
* 4. The name of the author may not be used to endorse or promote products
|
|
* derived from this software without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
|
|
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
|
|
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
|
|
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
|
|
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
|
|
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
|
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
|
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
|
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
|
|
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
*
|
|
* $FreeBSD$
|
|
*/
|
|
|
|
#include "includes.h"
|
|
RCSID("$Id: fingerprint.c,v 1.6 2000/04/12 09:39:10 markus Exp $");
|
|
|
|
#include "ssh.h"
|
|
#include "xmalloc.h"
|
|
#include <openssl/md5.h>
|
|
|
|
#define FPRINT "%02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x"
|
|
|
|
/*
|
|
* Generate key fingerprint in ascii format.
|
|
* Based on ideas and code from Bjoern Groenvall <bg@sics.se>
|
|
*/
|
|
char *
|
|
fingerprint(BIGNUM *e, BIGNUM *n)
|
|
{
|
|
static char retval[80];
|
|
MD5_CTX md;
|
|
unsigned char d[16];
|
|
unsigned char *buf;
|
|
int nlen, elen;
|
|
|
|
nlen = BN_num_bytes(n);
|
|
elen = BN_num_bytes(e);
|
|
|
|
buf = xmalloc(nlen + elen);
|
|
|
|
BN_bn2bin(n, buf);
|
|
BN_bn2bin(e, buf + nlen);
|
|
|
|
MD5_Init(&md);
|
|
MD5_Update(&md, buf, nlen + elen);
|
|
MD5_Final(d, &md);
|
|
snprintf(retval, sizeof(retval), FPRINT,
|
|
d[0], d[1], d[2], d[3], d[4], d[5], d[6], d[7],
|
|
d[8], d[9], d[10], d[11], d[12], d[13], d[14], d[15]);
|
|
memset(buf, 0, nlen + elen);
|
|
xfree(buf);
|
|
return retval;
|
|
}
|