US 7,752,449 Bl Jul. 6, 2010
(54) SYSTEM AND METHOD FOR GENERATING A NON-REPUDIATABLE RECORD OF A DATA STREAM
(75) Inventor: Peter Chapman, Kanata (CA)
(73) Assignee: Avaya, Inc., Basking Ridge, NJ (US)
( * ) Notice: Subject to any disclaimer, the term of this patent is extended or adjusted under 35 U.S.C. 154(b) by 1171 days.
(21) Appl.No.: 11/357,957
(22) Filed: Feb. 22, 2006
(51) Int. CI.
H04L 9/32 (2006.01)
H04L 29/06 (2006.01)
H04L 9/00 (2006.01)
H04L 9/28 (2006.01)
H04L 9/08 (2006.01)
H04K1/00 (2006.01)
H04K1/06 (2006.01)
(52) U.S. CI 713/179; 713/160; 713/168;
713/171; 713/181; 380/28; 380/37; 380/43;
380/255; 380/278; 380/283
(58) Field of Classification Search 713/160,
713/168, 171, 179, 181; 380/255,37,43,
380/28
See application file for complete search history. (56) References Cited
U.S. PATENT DOCUMENTS
A system and method for generating a non-repudiatable record of a communications data stream is provided, which is applicable to real-time and quasi-real-time data streams. A binary communication data stream is captured and segmented into defined frames. A key frame is generated for each of a number of data frames containing integrity and authentication information. The key frame is inserted into the data stream to provide an authenticated data stream.
18 Claims, 7 Drawing Sheets
