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January 3rd, 2003, 11:51 PM
#1
 Who hava any code or resource on Substitution Ciphers????
code or resource on decrypt ing , since to encrypt with Substitution Ciphers is easy.
my emai: [email protected]
Thank you very much!!!!!
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January 4th, 2003, 12:00 AM
#2
Substitution Ciphers are also known as One-Time-Pad ciphers. You need to know the original set of substitutions. If the pad is as long or longer than the message [ a requirement for secure transmission] than the code in unbreakable without the pad.
Please note that 1 or more "meanings" may be derived from the cipher in this case without the pad, but that does not mean that the sender intended that information. Consider you receive "FWDS" as a cipher. This could just as easily mean GURU as it means FOOL.
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