Patent ID: 7962540
Filing Date: 2011-06-14
Classification: G06F

Abstract:
1. A method for masking a process used in generating a number sequence, comprising; generating, by at least one electronic circuit, a first sequence of numbers contained within a Galois field GF[M]; performing, by said electronic circuit, a first modification to a first number in said first sequence of numbers to obtain a modified first number, said first modification comprising summing said first number with a result of a modulo P operation performed on a second number of said first sequence that precedes said first number, where M is relatively prime with respect to P; subsequent to said first modification, performing, by said electronic circuit, a second modification to said modified first number comprising a modulo P operation; repeating, by said electronic circuit, said first and second modifications for a plurality of numbers comprising said first sequence of numbers to generate a second sequence of numbers; and combining, by said electronic circuit, at least a portion of said second sequence of numbers with a sequence of symbols defining information to be stored in a storage device or transmitted over a communications link.