IP Library Granted Patent US 7,840,002
Granted Patent B2
US 7,840,002 · App. 11/191,878 · Granted Nov 23, 2010

Techniques to strengthen one-time pad encryption

Assignee: Vadium Technology, Inc.
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Quick Facts
Patent No.
US 7,840,002
App. No.
11/191,878
Granted
Nov 23, 2010
Kind
B2
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.

Claims (10)

1. A computer-implemented method for strengthening an OTP (one-time pad) encryption system, said method comprising the steps of:

encrypting plaintext with a one-dimensional OTP key in an XOR operation to produce ciphertext; and

obfuscating the ciphertext with a one-dimensional AutoKey in an XOR operation to produce AutoKeyed ciphertext; wherein:

the OTP key is generated by a truly random number generator;

the AutoKey is a reusable key; and

the AutoKey is uniquely linked to a KernelKey via a field within a header of the KernelKey, wherein the KernelKey is a reusable key, and the field contains the first j bytes of the AutoKey, where j is a positive integer;

said method further comprising the step of obfuscating byproducts of the OTP encryption with the KernelKey;

wherein the byproducts comprise items from the group of items consisting of:

bin files storing user preferences; and

log files containing information as to a purpose of the OTP encryption.

Assignments (2)
SECURITY AGREEMENT Recorded Sep 12, 2011
From: VADIUM TECHNOLOGY, INC.
To: CADG INTERNATIONAL, PTE, LTD.
Reel/Frame 026890/0342 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 24, 2005
From: ARI, ZSOLT
To: VADIUM TECHNOLOGY, INC.
Reel/Frame 017133/0352 →
Continuity (2)
Provisional Application 6059231000 · Jul 29, 2004
Related Publication 20060029223A1 · Feb 9, 2006