diff options
Diffstat (limited to 'crypto/openssh/sshconnect1.c')
| -rw-r--r-- | crypto/openssh/sshconnect1.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/crypto/openssh/sshconnect1.c b/crypto/openssh/sshconnect1.c index 96439c4..5ae46e0 100644 --- a/crypto/openssh/sshconnect1.c +++ b/crypto/openssh/sshconnect1.c @@ -152,14 +152,17 @@ respond_to_rsa_challenge(BIGNUM * challenge, RSA * prv) int i, len; /* Decrypt the challenge using the private key. */ - rsa_private_decrypt(challenge, challenge, prv); + /* XXX think about Bleichenbacher, too */ + if (rsa_private_decrypt(challenge, challenge, prv) <= 0) + packet_disconnect( + "respond_to_rsa_challenge: rsa_private_decrypt failed"); /* Compute the response. */ /* The response is MD5 of decrypted challenge plus session id. */ len = BN_num_bytes(challenge); if (len <= 0 || len > sizeof(buf)) - packet_disconnect("respond_to_rsa_challenge: bad challenge length %d", - len); + packet_disconnect( + "respond_to_rsa_challenge: bad challenge length %d", len); memset(buf, 0, sizeof(buf)); BN_bn2bin(challenge, buf + sizeof(buf) - len); |
