Publication |
USA, Dover Publications, Inc., 1972.
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Description |
96 pDark Blue Spine
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Summary/Abstract |
Explains in simple terms how to encode and decode messages in various ciphers, describes coding machines, and gives formulas for invisible ink.
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Contents |
Easy Transposition Ciphers
Easy Substitution Ciphers
How to Break Substitution Ciphers
Hard-To-Break Polyalphabetic Ciphers
Simple Code Machines
Invisible Writing
Bizarre Methods of Message Sending
Codes for Other Worlds
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Standard Number |
0486247619 Pb.
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