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- markus@cvs.openbsd.org 2001/03/27 10:34:08

Browse Source 
[ssh-rsa.c sshd.c]
     use EVP_get_digestbynid, reorder some calls and fix missing free.
This commit is contained in:
Ben Lindstrom 2001-03-29 00:31:20 +00:00
parent d09fcf5f6e
commit 425fb02f20
3 changed files with 28 additions and 14 deletions
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5
ChangeLog
View File

@ -9,6 +9,9 @@
- markus@cvs.openbsd.org 2001/03/26 23:23:24
[rsa.c rsa.h ssh-agent.c ssh-keygen.c]
try to read private f-secure ssh v2 rsa keys.
- markus@cvs.openbsd.org 2001/03/27 10:34:08
[ssh-rsa.c sshd.c]
use EVP_get_digestbynid, reorder some calls and fix missing free.
20010328
- (djm) Reorder tests and library inclusion for Krb4/AFS to try to
@ -4747,4 +4750,4 @@
- Wrote replacements for strlcpy and mkdtemp
- Released 1.0pre1
$Id: ChangeLog,v 1.1028 2001/03/29 00:29:54 mouring Exp $
$Id: ChangeLog,v 1.1029 2001/03/29 00:31:20 mouring Exp $

34
ssh-rsa.c
View File

@ -23,7 +23,7 @@
*/
#include "includes.h"
RCSID("$OpenBSD: ssh-rsa.c,v 1.6 2001/02/08 19:30:52 itojun Exp $");
RCSID("$OpenBSD: ssh-rsa.c,v 1.7 2001/03/27 10:34:08 markus Exp $");
#include <openssl/evp.h>
#include <openssl/err.h>
@ -42,27 +42,32 @@ ssh_rsa_sign(
u_char **sigp, int *lenp,
u_char *data, int datalen)
{
EVP_MD *evp_md = EVP_sha1();
const EVP_MD *evp_md;
EVP_MD_CTX md;
u_char *digest, *sig, *ret;
u_int slen, dlen, len;
int ok;
int ok, nid;
Buffer b;
if (key == NULL || key->type != KEY_RSA || key->rsa == NULL) {
error("ssh_rsa_sign: no RSA key");
return -1;
}
slen = RSA_size(key->rsa);
sig = xmalloc(slen);
nid = NID_sha1;
if ((evp_md = EVP_get_digestbynid(nid)) == NULL) {
error("ssh_rsa_sign: EVP_get_digestbynid %d failed", nid);
return -1;
}
dlen = evp_md->md_size;
digest = xmalloc(dlen);
EVP_DigestInit(&md, evp_md);
EVP_DigestUpdate(&md, data, datalen);
EVP_DigestFinal(&md, digest, NULL);
ok = RSA_sign(NID_sha1, digest, dlen, sig, &len, key->rsa);
slen = RSA_size(key->rsa);
sig = xmalloc(slen);
ok = RSA_sign(nid, digest, dlen, sig, &len, key->rsa);
memset(digest, 'd', dlen);
xfree(digest);
@ -108,13 +113,12 @@ ssh_rsa_verify(
u_char *data, int datalen)
{
Buffer b;
EVP_MD *evp_md = EVP_sha1();
const EVP_MD *evp_md;
EVP_MD_CTX md;
char *ktype;
u_char *sigblob, *digest;
u_int len, dlen;
int rlen;
int ret;
int rlen, ret, nid;
if (key == NULL || key->type != KEY_RSA || key->rsa == NULL) {
error("ssh_rsa_verify: no RSA key");
@ -139,17 +143,23 @@ ssh_rsa_verify(
rlen = buffer_len(&b);
buffer_free(&b);
if(rlen != 0) {
xfree(sigblob);
error("ssh_rsa_verify: remaining bytes in signature %d", rlen);
return -1;
}
nid = NID_sha1;
if ((evp_md = EVP_get_digestbynid(nid)) == NULL) {
xfree(sigblob);
error("ssh_rsa_verify: EVP_get_digestbynid %d failed", nid);
return -1;
}
dlen = evp_md->md_size;
digest = xmalloc(dlen);
EVP_DigestInit(&md, evp_md);
EVP_DigestUpdate(&md, data, datalen);
EVP_DigestFinal(&md, digest, NULL);
ret = RSA_verify(NID_sha1, digest, dlen, sigblob, len, key->rsa);
ret = RSA_verify(nid, digest, dlen, sigblob, len, key->rsa);
memset(digest, 'd', dlen);
xfree(digest);
memset(sigblob, 's', len);

3
sshd.c
View File

@ -40,7 +40,7 @@
*/
#include "includes.h"
RCSID("$OpenBSD: sshd.c,v 1.179 2001/03/26 08:07:09 markus Exp $");
RCSID("$OpenBSD: sshd.c,v 1.180 2001/03/27 10:34:08 markus Exp $");
#include <openssl/dh.h>
#include <openssl/bn.h>
@ -648,6 +648,7 @@ main(int ac, char **av)
exit(1);
}
}
SSLeay_add_all_algorithms();
/*
* Force logging to stderr until we have loaded the private host