For some reasons I will use other transport protocol but not TCP. Can I just write a new kind of BIO and set them into the "SSL"structure, (that is, SSL->rbio and SSL->wbio,SSL->bbio)and hope all openSSL functions will work fine? Before I start to write this new BIO, I should know what BIO interface I must implement for this purpose,any advice? ______________________________________________________________________ OpenSSL Project http://www.openssl.org User Support Mailing List [EMAIL PROTECTED] Automated List Manager [EMAIL PROTECTED]