Cryptography – Particular algorithmic function encoding – Nbs/des algorithm
Patent
1995-08-17
1998-03-03
Barron, Jr., Gilberto
Cryptography
Particular algorithmic function encoding
Nbs/des algorithm
380 26, 380 42, H04L 938
Patent
active
057244278
ABSTRACT:
A method an apparatus for block or stream encrypting text uses an autokeyed rotational state vector to encrypt plain text to yield cipher text. The text is stored as a block in a buffer of an arbitrary number of bytes. Each byte of plain text in the buffer encrypted to yield a byte of cipher text by using a rotational state vector, and the rotational state vector is updated or changed as a function of one or more of: the cipher text, the plain text and a key. The encryption operation is advantageously a series of alternating non-linear and linear transformations. The method of encryption is advantageously involutory in that the encryption method and apparatus for a given key is identical to the decryption method and apparatus with the same key.
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Barron Jr. Gilberto
Lucent Technologies - Inc.
McLellan Scott W.
LandOfFree
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