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A THEORY OF CRYPTOGRAPHY |
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| Authors: | Bradford Hardie |
| Abstract: | It Is proposed that a theory of cryptography covering both substitution and transposition ciphers in a general way be considered so as to not overlook, various characteristics of cipher systems. A cipher consists of correspondence classes and their sequence, the classes being roughly equal to equivalence classes in algebra. Examples are given. |
| Keywords: | correspondence class correspondence pair mutative |