Opportunistic use of null packets during encryption/decryption

Details Opportunistic use of null packets during encryption/decryption Opportunistic use of null packets during encryption/decryption

2006-01-30

2011-11-08

Srivastava, Vivek (Department: 2433)

Cryptography

Key management

Key distribution

C380S029000, C380S042000, C380S255000, C380S260000, C380S261000, C380S262000, C380S277000, C713S150000

Reexamination Certificate

active

08054974

ABSTRACT:
The use of keys to encrypt data in a transmitter and to decrypt encrypted data in a receiver are synchronized in accordance with a synchronization signal that opportunistically replaces a null packet in an MPEG transport stream. Additionally or alternatively, key related information is transmitted and/or received in place of a null packet in the MPEG transport stream and is used to encrypt and/or decrypt data transmitted and/or received in the MPEG transport stream.

REFERENCES:
patent: 5029207 (1991-07-01), Gammie
patent: 5253294 (1993-10-01), Maurer
patent: 5420866 (1995-05-01), Wasilewski
patent: 5774549 (1998-06-01), Nielsen
patent: 5841873 (1998-11-01), Lockhart et al.
patent: 6215876 (2001-04-01), Gilley
patent: 6477252 (2002-11-01), Faber et al.
patent: 6771657 (2004-08-01), Elstermann
patent: 6819224 (2004-11-01), Brierley
patent: 6834110 (2004-12-01), Marconcini et al.
patent: 7065213 (2006-06-01), Pinder
patent: 7092524 (2006-08-01), Timmel
patent: 7124303 (2006-10-01), Candelore et al.
patent: 7137025 (2006-11-01), Ito et al.
patent: 7151832 (2006-12-01), Fetkovich et al.
patent: 7203311 (2007-04-01), Kahn et al.
patent: 7221758 (2007-05-01), Cramer et al.
patent: 7242772 (2007-07-01), Tehranchi
patent: 7254232 (2007-08-01), DiSanto et al.
patent: 7336787 (2008-02-01), Unger et al.
patent: 7356147 (2008-04-01), Foster et al.
patent: 7366302 (2008-04-01), Candelore
patent: 7406703 (2008-07-01), Lee et al.
patent: 7555123 (2009-06-01), Pinder et al.
patent: 2002/0064177 (2002-05-01), Bertram et al.
patent: 2002/0131595 (2002-09-01), Ueda et al.
patent: 2003/0035543 (2003-02-01), Gillon et al.
patent: 2003/0058810 (2003-03-01), Petronic
patent: 2003/0110382 (2003-06-01), Leporini et al.
patent: 2003/0135464 (2003-07-01), Mourad et al.
patent: 2003/0159140 (2003-08-01), Candelore
patent: 2003/0167397 (2003-09-01), Mangold et al.
patent: 2003/0169883 (2003-09-01), Leroux et al.
patent: 2004/0052379 (2004-03-01), Nishimoto et al.
patent: 2004/0136532 (2004-07-01), Pinder et al.
patent: 2004/0148501 (2004-07-01), Livaditis et al.
patent: 2004/0240668 (2004-12-01), Bonan
patent: 2004/0268117 (2004-12-01), Olivier et al.
patent: 2005/0097597 (2005-05-01), Pedlow et al.
patent: 2005/0102498 (2005-05-01), Bojinov et al.
patent: 2005/0259813 (2005-11-01), Wasilewski et al.
patent: 2005/0259821 (2005-11-01), Kubota et al.
patent: 2006/0002561 (2006-01-01), Choi et al.
patent: 2006/0031873 (2006-02-01), Fahrny et al.
patent: 2006/0047953 (2006-03-01), Beukema et al.
patent: 2006/0047975 (2006-03-01), Beukema et al.
patent: 2007/0258586 (2007-11-01), Huang et al.
patent: 2008/0198876 (2008-08-01), Stranger et al.
patent: 2008/0256641 (2008-10-01), Lo
patent: 0 706 118 (1996-04-01), None
patent: 0 786 881 (1996-12-01), None
patent: 1 187 483 (2002-03-01), None
patent: WO 92/17959 (1992-03-01), None
Qiao et al., “Comparison of MPEG Encryption Algorithms” Computers and Graphics, vol. 22, No. 4, pp. 437-448, 1998.

Affiliated with

Also associated with

Rating

Opportunistic use of null packets during encryption/decryption does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Opportunistic use of null packets during encryption/decryption, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Opportunistic use of null packets during encryption/decryption will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4303976