Patent ID: 8971525
Filing Date: 2015-03-03
Classification: H04L

Abstract:
1. A method for providing streams of cipher data for combining with a data stream to continuously encrypt or decrypt said data stream, the method comprising: at an electronic device comprising a primary source of cipher data for providing a primary stream of cipher data on a first cipher data stream path, an alternate source of cipher data for providing an alternate stream of cipher data on a second cipher data stream path, and a switch: providing said primary stream of cipher data from the primary source of cipher data on said first cipher data stream path for combining with said data stream to encrypt or decrypt said data stream; using the switch to switch from the primary source of cipher data to the alternate source of cipher data at a beginning of a period of time when output of the primary source of cipher data is unavailable; and providing said alternate stream of cipher data from the alternate source of cipher data on said second cipher data stream path for combining with said data stream to encrypt or decrypt said data stream during the period of time; whereby each element of said data stream is continuously combined with an element of cipher data to continuously encrypt or decrypt said data stream.