I'm looking for volunteers interested in testing the latest beta version of Puffer 2.0. Puffer is my shareware data file & e-mail encryption utility for Windows and has been significantly improved since version 1.0. It is now a full-fledged public key encryption program utilizing Diffie-Hellman technology. The exportable shareware version will support 512-bit public keys and 40-bit PC1 (RC4 clone) encryption. The U.S./Canada registered version will also support 1024-bit public keys and 160-bit Blowfish encryption. All versions support digital signatures, multi-pass data wiping (files, slack, & unused space), LZ77 compression, a built-in editor, and Windows clipboard encryption. I am currently negotiating a patent license for the D-H algorithm with Cylink and an export license with the State Dept. Testers must be residents of the U.S. or Canada. I am looking for cryptography novices through experts using a wide range of PC hardware running Win 3.1, Win 95, or OS/2. I also have detailed text files describing the security protocols and file formats used. I would like experts to take a look at these to make sure I didn't do something stupid. Those that can help will get a free copy of the final registered version. The software will be a 417 K zip file available via http. I will e-mail the protocol and file format specifications to anyone interested. Please respond by private e-mail. Thanks. Kent Briggs 72124.3234@compuserve.com