Take a look at http://www.netlib.com/de_work.htm.

>Hi,
>
>We use an EFT service that requires our submit files to be in a particular format... Encrypted first with "TripleDES" and *then* encoded using Base64...
>
>I have the program to encode using Base64 (thanks, Franz Müller) but I don't have... and have not found... any code to help me "TripleDES" a string...
>
>Does anyone have any experience using these encryptions???
>
>TIA
>
>Larry