Methods of detecting decryption errors

Cryptography – Key management – Having particular key generator

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380 44, 380 47, H04L 900

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058418733

ABSTRACT:
In a data communications system, including an infrastructure arranged to communicate over a data channel with a plurality of data terminals, a method of detecting data decryption errors in a data packet includes receiving an encrypted data packet (213); decrypting the encrypted data packet to provide a decrypted data packet; and comparing a reference value to a portion of the decrypted data packet to determine when a predetermined relationship is satisfied (221).

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Bruce Schneier, "Applied Cryptology: Protocols, Algorithims, and Source Code in C", 2nd edition John Wiley and Sons, N.Y. (1995) p. 179 Key-error Detection during Decryption (1st edition pp. 147-148).
Bruce Schneier, "Applied Cryptology: Protocols, Algorithms, and Source Code in C", 1st edition John Wiley and Sons, N.Y. (1992) p. 158 (2nd edition p. 194).

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