Authors
Richard A DeMillo, Nancy A Lynch, Michael J Merritt
Publication date
1982/5/5
Book
Proceedings of the fourteenth annual ACM symposium on Theory of computing
Pages
383-400
Description
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.
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RA DeMillo, NA Lynch, MJ Merritt - Proceedings of the fourteenth annual ACM symposium …, 1982