Thanks to all who responded to my question. The answer is: csrc.ncsl.nist.gov Also, apparently, source for DES was in Appendix A of the file "/pub/nistpubs/fips181.txt". However, it was removed and replaced with the following: Appendix A This section contained a listing of the source code referenced in the Automated Password Generator Standard. This section is not available in electronic form. Complete copies of FIPS 181, including this appendix, may be purchased in hardcopy from the National Technical Information Service (NTIS) via mail or telephone. National Technical Information Service U.S. Department of Commerce 5285 Port Royal Road Springfield, VA 22161 (703) 487-4650 Order by FIPSPUB181 Price: $22.50 (Same address and phone number for discount prices on quantity orders.) -------------- I wonder if they'll ship to an address outside of the US or Canada? I wonder if the people who package and mail the stuff even look at it? Jim_Miller@suite.com