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

Yucong Sun (叶雨飞) sunyucong at gmail.com
Wed Mar 30 22:16:22 CEST 2011

Hi there,

I'm trying to use EXP-RC4-MD5 cipher to acclerate the ssl handshake,
because it only needs a 512bit RSA key.

However, it will error out with

Mar 29 03:54:41 localhost stunnel: LOG3[28313:139721592907520]:
SSL_accept: 1409B11A: error:1409B11A:SSL
routines:SSL3_SEND_SERVER_KEY_EXCHANGE:error generating tmp rsa key

which is very weird, I tried to lookinto the code, find out we are
using RSA_gen_key_ex() calls, which key size shouldn't matter,

does anyone else have a better idea why?


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