Hopefully things did not get mixed around too much. It compiles under
Linux and works. So that is at least a good sign. =)
20010122
- (bal) OpenBSD Resync
- markus@cvs.openbsd.org 2001/01/19 12:45:26 GMT 2001 by markus
[servconf.c ssh.h sshd.c]
only auth-chall.c needs #ifdef SKEY
- markus@cvs.openbsd.org 2001/01/19 15:55:10 GMT 2001 by markus
[auth-krb4.c auth-options.c auth-rh-rsa.c auth-rhosts.c auth-rsa.c
auth1.c auth2.c channels.c clientloop.c dh.c dispatch.c nchan.c
packet.c pathname.h readconf.c scp.c servconf.c serverloop.c
session.c ssh-add.c ssh-keygen.c ssh-keyscan.c ssh.c ssh.h
ssh1.h sshconnect1.c sshd.c ttymodes.c]
move ssh1 definitions to ssh1.h, pathnames to pathnames.h
- markus@cvs.openbsd.org 2001/01/19 16:48:14
[sshd.8]
fix typo; from stevesk@
- markus@cvs.openbsd.org 2001/01/19 16:50:58
[ssh-dss.c]
clear and free digest, make consistent with other code (use dlen); from
stevesk@
- markus@cvs.openbsd.org 2001/01/20 15:55:20 GMT 2001 by markus
[auth-options.c auth-options.h auth-rsa.c auth2.c]
pass the filename to auth_parse_options()
- markus@cvs.openbsd.org 2001/01/20 17:59:40 GMT 2001
[readconf.c]
fix SIGSEGV from -o ""; problem noted by jehsom@togetherweb.com
- stevesk@cvs.openbsd.org 2001/01/20 18:20:29
[sshconnect2.c]
dh_new_group() does not return NULL. ok markus@
- markus@cvs.openbsd.org 2001/01/20 21:33:42
[ssh-add.c]
do not loop forever if askpass does not exist; from
andrew@pimlott.ne.mediaone.net
- djm@cvs.openbsd.org 2001/01/20 23:00:56
[servconf.c]
Check for NULL return from strdelim; ok markus
- djm@cvs.openbsd.org 2001/01/20 23:02:07
[readconf.c]
KNF; ok markus
- jakob@cvs.openbsd.org 2001/01/21 9:00:33
[ssh-keygen.1]
remove -R flag; ok markus@
- markus@cvs.openbsd.org 2001/01/21 19:05:40
[atomicio.c automicio.h auth-chall.c auth-krb4.c auth-options.c
auth-options.h auth-passwd.c auth-rh-rsa.c auth-rhosts.c auth-rsa.c
auth.c auth.h auth1.c auth2-chall.c auth2.c authfd.c authfile.c
bufaux.c bufaux.h buffer.c canahost.c canahost.h channels.c
cipher.c cli.c clientloop.c clientloop.h compat.c compress.c
deattack.c dh.c dispatch.c groupaccess.c hmac.c hostfile.c kex.c
key.c key.h log-client.c log-server.c log.c log.h login.c login.h
match.c misc.c misc.h nchan.c packet.c pty.c radix.h readconf.c
readpass.c readpass.h rsa.c scp.c servconf.c serverloop.c serverloop.h
session.c sftp-server.c ssh-add.c ssh-agent.c ssh-dss.c ssh-keygen.c
ssh-keyscan.c ssh-rsa.c ssh.c ssh.h sshconnect.c sshconnect.h
sshconnect1.c sshconnect2.c sshd.c tildexpand.c tildexpand.h
ttysmodes.c uidswap.c xmalloc.c]
split ssh.h and try to cleanup the #include mess. remove unnecessary
#includes. rename util.[ch] -> misc.[ch]
- (bal) renamed 'PIDDIR' to '_PATH_SSH_PIDDIR' to match OpenBSD tree
- (bal) Moved #ifdef KRB4 in auth-krb4.c above the #include to resolve
conflict when compiling for non-kerb install
- (bal) removed the #ifdef SKEY in auth1.c to match Markus' changes
on 1/19.
diff --git a/ssh-dss.c b/ssh-dss.c
index 96b1565..2366c21 100644
--- a/ssh-dss.c
+++ b/ssh-dss.c
@@ -23,19 +23,16 @@
*/
#include "includes.h"
-RCSID("$OpenBSD: ssh-dss.c,v 1.2 2000/12/19 23:17:58 markus Exp $");
+RCSID("$OpenBSD: ssh-dss.c,v 1.4 2001/01/21 19:05:57 markus Exp $");
-#include "ssh.h"
+#include <openssl/bn.h>
+#include <openssl/evp.h>
+
#include "xmalloc.h"
#include "buffer.h"
#include "bufaux.h"
#include "compat.h"
-
-#include <openssl/bn.h>
-#include <openssl/rsa.h>
-#include <openssl/dsa.h>
-#include <openssl/evp.h>
-
+#include "log.h"
#include "key.h"
#define INTBLOB_LEN 20
@@ -54,7 +51,7 @@
EVP_MD_CTX md;
u_int rlen;
u_int slen;
- u_int len;
+ u_int len, dlen;
u_char sigblob[SIGBLOB_LEN];
Buffer b;
@@ -62,15 +59,18 @@
error("ssh_dss_sign: no DSA key");
return -1;
}
- digest = xmalloc(evp_md->md_size);
+ dlen = evp_md->md_size;
+ digest = xmalloc(dlen);
EVP_DigestInit(&md, evp_md);
EVP_DigestUpdate(&md, data, datalen);
EVP_DigestFinal(&md, digest, NULL);
- sig = DSA_do_sign(digest, evp_md->md_size, key->dsa);
+ sig = DSA_do_sign(digest, dlen, key->dsa);
if (sig == NULL) {
fatal("ssh_dss_sign: cannot sign");
}
+ memset(digest, 0, dlen);
+ xfree(digest);
rlen = BN_num_bytes(sig->r);
slen = BN_num_bytes(sig->s);