Patent ID: 8447968
Filing Date: 2013-05-21
Classification: H04L,H04W

Abstract:
1. A method of encrypting data for transmission over a wireless link, comprising: encrypting one or more blocks of data, at an air-interface application layer, using an encryption algorithm that receives a cryptosynch as input, wherein each block of data includes a plurality of bytes associated with a corresponding plurality of sequence numbers, wherein the value of the cryptosynch includes a variable component that is based on an order of the one or more blocks of data relative to other blocks of data and where the variable component comprises an incremented value that is derived at the air-interface application layer, and the variable component of the cryptosynch is recoverable by a receiver based on the ordering of the blocks of data and a value of one of the plurality of sequence numbers; and transmitting the one or more encrypted blocks of data to a receiver that is operable to preserve the order of the one or more blocks of data relative to the other blocks of data.