Posted on 05/29/2002 7:57:29 AM PDT by John Jorsett
You mean ciphers not codes. The point of cryptography is to make the expense of breaking the cipher greater than the amount of time the data has to be kept secret. For example the message "The suicide bombing starts in two hours Abdul" doesn't need to be kept secret as would a message planning something six months in the future.
The NSA's VENONA pages are a facinating read.
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