Folks, Those interested in WW II Cryptolographic History should check out: www.maritime.org/ecm2.shtml I have just updated this site to include more information on the ECM Mark II, aka SIGABA, aka CSP-889. This was the primary high level US cipher system from 1941 - 1959 or so when it was gradualy retired because it was too slow. The web site now includes a history of the machine, textual description of its algorithm, photographs, and a Java program (with source) that emulates the machine in detail. Comments and suggestions for the site are greatfully accepted at pekelney@rspeng.com. I am also seeking help improving the UI if anyone is very Java literate and wants to help. I do not regularly monitor cypherpunks because of its incredibly high volume of traffic. Thanks, rich -- Richard Pekelney Internet: pekelney@rspeng.com Phone: 1-415-563-5928 Fax: 1-415-563-5787