Patent ID: 8817976
Filing Date: 2014-08-26
Classification: H04L

Abstract:
1. A method of securing data, comprising: receiving a plaintext data unit; encrypting 4 bits of a plaintext data unit with a transposed Sudoku to form a first ciphertext unit, wherein the first ciphertext unit comprises one of ten preselected bit combinations; encrypting the first ciphertext unit with pseudorandom mixing bits different from the Sudoku to form a second ciphertext unit, wherein the pseudorandom mixing bits are produced using a multiplexer, wherein the multiplexer is a 1 of 4 multiplexer and wherein encrypting the first ciphertext unit with pseudorandom mixing bits includes combining the pseudorandom mixing bits with the first ciphertext unit using an exclusive OR function to produce the second ciphertext unit; and outputting the second ciphertext unit corresponding to the plaintext data unit.