Techniques to strengthen one-time pad encryption

Details Techniques to strengthen one-time pad encryption Techniques to strengthen one-time pad encryption

2005-07-28

2010-11-23

Barron, Jr., Gilberto (Department: 2432)

Cryptography

Communication system using cryptography

Data stream/substitution enciphering

C380S281000

Reexamination Certificate

active

07840002

ABSTRACT:
Apparati, methods, and computer-readable media for strengthening a one-time pad encryption system. A method embodiment of the present invention comprises the steps of encrypting plaintext (1) with an OTP key (2) in an XOR operation to produce ciphertext (3); and obfuscating the ciphertext (3) with an AutoKey (4) in an XOR operation to produce AutoKeyed ciphertext (5), wherein the AutoKey (4) is a reusable key.

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patent: 2003/0123672 (2003-07-01), Srinivasan et al.
patent: 2003/0149876 (2003-08-01), McGough
patent: 2003/0200439 (2003-10-01), Moskowitz
patent: 2004/0017917 (2004-01-01), Hammersmith et al.
patent: 2004/0136537 (2004-07-01), Hammersmith et al.
patent: 2004/0139336 (2004-07-01), McLean et al.

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