Cryptographic Protocols

A cryptographic transformation is a mapping f from a set of cleartext messages, M, to a set of ciphertext messages. Since for m e M, f(m) should hide the contents of m from an enemy, f -1 should, in a certain technical sense, be difficult to infer from f(m) and public knowledge about f. A cryptosystem is a model of computation and communication which permits the manipulation of messages by cryptographic transformations.

Authors

• Richard A. DeMillo
• Nancy A. Lynch
• Michael Merritt

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