diff options
Diffstat (limited to 'usr.bin/ssh/ssh-rsa.c')
| -rw-r--r-- | usr.bin/ssh/ssh-rsa.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/usr.bin/ssh/ssh-rsa.c b/usr.bin/ssh/ssh-rsa.c index aab9168ebc7..e53af9e0a3b 100644 --- a/usr.bin/ssh/ssh-rsa.c +++ b/usr.bin/ssh/ssh-rsa.c @@ -23,7 +23,7 @@ */ #include "includes.h" -RCSID("$OpenBSD: ssh-rsa.c,v 1.3 2001/01/06 11:23:27 markus Exp $"); +RCSID("$OpenBSD: ssh-rsa.c,v 1.4 2001/01/16 19:20:06 markus Exp $"); #include "ssh.h" #include "xmalloc.h" @@ -122,6 +122,11 @@ ssh_rsa_verify( error("ssh_rsa_verify: no RSA key"); 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)); + return -1; + } buffer_init(&b); buffer_append(&b, (char *) signature, signaturelen); ktype = buffer_get_string(&b, NULL); |