Patent ID: 7099469

Claim:
A scrambling method for use in a communication system, the method comprising the steps of: dividing a set of data into a first portion and a second portion; performing a first scrambling method on the first portion of the set of data to create a scrambled first portion of the data; modifying the second portion of the set of data with the scrambled first portion of the set of data to create a modified second portion of the set of data; performing a second scrambling method on the modified second portion of the set of data to create a scrambled second portion of the set of data; and modifying the scrambled first portion of the set of data with the scrambled second portion of the set of data to create a scrambled set of data, wherein the scrambled set of data is stored in a source device and wherein the first and second scrambling methods recursively execute the above steps until the portion of the set of data to be scrambled reaches a predetermined length.