Encryption and decryption techniques using shuffle function

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United States of America Patent

PATENT NO 11516201
APP PUB NO 20210320910A1
SERIAL NO

17154880

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Abstract

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Encryption and decryption techniques based on one or more transposition vectors. A secret key is used to generate vectors that describe permutation (or repositioning) of characters within a segment length equal to a length of the transposition vector. The transposition vector is then inherited by the encryption process, which shifts characters and encrypts those characters using a variety of encryption processes, all completely reversible. In one embodiment, one or more auxiliary keys, transmitted as clear text header values, are used as initial values to vary the transposition vectors generated from the secret key, e.g., from encryption-to-encryption. Any number of rounds of encryption can be applied, each having associated headers used to “detokenize” encryption data and perform rounds to decryption to recover the original data (or parent token information). Format preserving encryption (FPE) techniques are also provided with application to, e.g., payment processing.

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Patent Owner(s)

  • JONETIX CORPORATION

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Nathan, Richard J Gilroy, US 25 709
Tredennick, Harry Leslie Los Gatos, US 14 126
Wu, Paul Ying-Fung Saratoga, US 29 390

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