[GreenKeys] Cryptography

[Duncan M. Brown]

While looking for something else on the Internet, I just stumbled on a big
cryptographic website:
http://www.hypermaths.org/quadibloc/crypto/entry.htm

Details on the Vernam (XOR-ed tapes) system are at 
http://www.hypermaths.org/quadibloc/crypto/tele03.htm

Information on the SIGABA (aka ECM II) machine mfd. by Teletype Corp. is at
http://www.hypermaths.org/quadibloc/crypto/ro0205.htm


73,
 
Duncan, K2OEQ
http://www.antiquewireless.org/