Methods for increasing encryption synchronization availability include collecting encryption synchronization data from a first superframe received at a gateway. The encryption synchronization data is for decrypting media in a second superframe also received at the gateway. The encryption synchronization data from the first superframe is used to form a composite encryption synchronization codeword for decrypting media in a third superframe formed by the gateway, wherein the third superframe includes the composite encryption synchronization codeword and at least a portion of the media from the second superframe. The third superframe is sent to a receiving device so that media in the third superframe can be decrypted by the receiving device using the composite encryption synchronization codeword that is included in the same superframe as the media that is being decrypted.

Title
System and method of increasing encryption synchronization availability
Application Number
12/645804
Publication Number
20110150219
Application Date
December 23, 2009
Publication Date
June 23, 2011
Inventor
Peter E Thomas
Schaumburg
IL, US
Michael F Korus
Eden Prairie
MN, US
Peter M Drozt
Prairie Grove
IL, US
Gregory D Bishop
St Charles
IL, US
Michelle M Antonelli
Barrington
IL, US
Ramandeep Ahuja
Chicago
IL, US
Donald G Newberg
Hoffman Estates
IL, US
Assignee
Motorola
IL, US
IPC
H04K 01/00
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