Secure data transmission system and method

Details Secure data transmission system and method Secure data transmission system and method

2007-06-05

2007-06-05

Smithers, Matthew (Department: 2137)

Cryptography

Video cryptography

Video electric signal modification

C705S054000

Reexamination Certificate

active

10257759

ABSTRACT:
This invention concerns a system and a method of transmission and storage of audio/video data in encrypted form between a distribution centre and at least one exploitation module.Instead of transmitting the information allowing the decryption in parallel to said data, these information are regrouped in a decryption data file comprising equally the data that define the access conditions to said audio/video data. This file is stored independently from said data and can be used for either an immediate use or a deferred one.

REFERENCES:
patent: 6550011 (2003-04-01), Sims, III
patent: 6834110 (2004-12-01), Marconcini et al.
patent: 2003/0135464 (2003-07-01), Mourad et al.
patent: 0 715 241 (1996-06-01), None
patent: 0 975 165 (2000-01-01), None
patent: WO 97/46017 (1997-12-01), None

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