- markus@cvs.openbsd.org 2001/11/07 21:40:21

[openssh.git] / ssh-rsa.c

diff --git a/ssh-rsa.c b/ssh-rsa.c
index 15ce5e977f00a25890df8cb75591e2ad39009488..27a6c5a533f313770914d7b24053c5c9bb5d752d 100644 (file)
--- a/ssh-rsa.c
+++ b/ssh-rsa.c
@@ -23,7 +23,7 @@
  */
 
 #include "includes.h"
-RCSID("$OpenBSD: ssh-rsa.c,v 1.10 2001/09/17 19:27:15 stevesk Exp $");
+RCSID("$OpenBSD: ssh-rsa.c,v 1.11 2001/11/07 21:40:21 markus Exp $");
 
 #include <openssl/evp.h>
 #include <openssl/err.h>
@@ -54,6 +54,10 @@ ssh_rsa_sign(
                error("ssh_rsa_sign: no RSA key");
                return -1;
        }
+        if (datafellows & SSH_BUG_SIGBLOB) {
+               error("ssh_rsa_sign: SSH_BUG_SIGBLOB not supported");
+               return -1;
+       }
        nid = (datafellows & SSH_BUG_RSASIGMD5) ? NID_md5 : NID_sha1;
        if ((evp_md = EVP_get_digestbynid(nid)) == NULL) {
                error("ssh_rsa_sign: EVP_get_digestbynid %d failed", nid);
@@ -124,6 +128,10 @@ ssh_rsa_verify(
                error("ssh_rsa_verify: no RSA key");
                return -1;
        }
+        if (datafellows & SSH_BUG_SIGBLOB) {
+               error("ssh_rsa_verify: SSH_BUG_SIGBLOB not supported");
+               return -1;
+       }
        if (BN_num_bits(key->rsa->n) < 768) {
                error("ssh_rsa_verify: n too small: %d bits",
                    BN_num_bits(key->rsa->n));