Hello, I've been away from the list or some time so my apologies if this has been asked before, Is it possible to use Openssl to simulate a DES card from a given challenge? Looking at the Openssl command line I would expect that I could do something like: echo "1234" | openssl des3 -a -K abcd0123 to compare against the reply. Many thanks Bob This communication is for informational purposes only. It is not intended as an offer or solicitation for the purchase or sale of any financial instrument or as an official confirmation of any transaction. All market prices, data and other information are not warranted as to completeness or accuracy and are subject to change without notice. Any comments or statements made herein do not necessarily reflect those of J.P. Morgan & Co. Incorporated, its subsidiaries and affiliates. ______________________________________________________________________ OpenSSL Project http://www.openssl.org User Support Mailing List [EMAIL PROTECTED] Automated List Manager [EMAIL PROTECTED]