[stunnel-users] Weird error when trying to use 512bit RSA key

[Outofwall.com]

In fact, I'm using TLSv1, just use the custom ciphers list. Here's
what I have on the server side:

ciphers EXP-RC4-MD5:ALL

and test

sunyc at www:~$ openssl s_client -tls1 -connect ssl.sgivpn.info:443
-cipher EXP-RC4-MD5
CONNECTED(00000003)
depth=0 /C=US/ST=CA/O=XXX
verify error:num=18:self signed certificate
verify return:1
depth=0 /C=US/ST=CA/O=XXX
verify return:1
32684:error:14094410:SSL routines:SSL3_READ_BYTES:sslv3 alert
handshake failure:s3_pkt.c:1093:SSL alert number 40
32684:error:1409E0E5:SSL routines:SSL3_WRITE_BYTES:ssl handshake
failure:s3_pkt.c:530:

Error:
Apr 11 18:57:35 localhost stunnel: LOG3[8319:139884220368640]:
SSL_accept: 1409B11A: error:1409B11A:SSL
routines:SSL3_SEND_SERVER_KEY_EXCHANGE:error generating tmp rsa key


Both client and server is running ubuntu 10.04, with openssl 0.9.8k I think.

Cheers.