Hello! At the end, and thanking Vadmir, the program sign.c did work properly on a DOS Environment. But now, I am trying to define a Visual Program by using the C++ Power Builder. I have seen that the function pkey = PEM_read_PrivateKey(fp,NULL,NULL,NULL) asks the user to enter the PEM Phrase. In the WIN-Environment I get an error. So I would like to know if there exists a way of saying that "pkey = pass phrase", without calling the function above. Thanks in advance, Mariana __________________________________________________ Do You Yahoo!? Talk to your friends online with Yahoo! Messenger. http://im.yahoo.com ______________________________________________________________________ OpenSSL Project http://www.openssl.org User Support Mailing List [EMAIL PROTECTED] Automated List Manager [EMAIL PROTECTED]