| Publication |
USA, Dover Publications, Inc., 1972.
|
| Description |
96 pDark Blue Spine
|
| Summary/Abstract |
Explains in simple terms how to encode and decode messages in various ciphers, describes coding machines, and gives formulas for invisible ink.
|
| 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
|
| Standard Number |
0486247619 Pb.
|