Cryptography – Particular algorithmic function encoding – Nbs/des algorithm
Patent
1996-11-27
1999-08-03
Barron, Jr., Gilberto
Cryptography
Particular algorithmic function encoding
Nbs/des algorithm
380 16, H04N 716
Patent
active
059335009
ABSTRACT:
An adaptive decoder generates a program representative datastream, in selectable, encrypted or decrypted form. A method for adaptively processing input encrypted program data with an associated encryption code provides either an encrypted or a decrypted program output. In an encrypted mode, encrypted program data and an associated encryption code is exported to an output port. In a decrypted mode, input encrypted program data is decrypted using an encryption key derived from the encryption code to provide decrypted program data. The decrypted program data is exported to the output port. Non-encrypted program data is exported to an output port in a selectable non-encrypted mode.
REFERENCES:
patent: 4790010 (1988-12-01), Sgrignoli
patent: 4907273 (1990-03-01), Wiedemer
patent: 4945563 (1990-07-01), Horton et al.
U. Reimers, Digitale Fernsehtechnik, 1995, pp.9-11 and 171-176, Germany (translation attached).
Functional Model of a Conditional Access System, EBU Review Technical, Grand-Saconnex, CH, Dec. 21, 1995, pp. 64-77.
MPEG Systems Standard (ISO/IEC 13818-1, Jun. 10th 1994, Sections 2.4 and 2.6.
Preliminary EIA Document of Apr. 7 1994 version 2.0 draft as precursor to unpublished EIA Draft Document IS-679, Project PN-3639 by NRSS (National Renewable Standards Committee).
International Standards Organization Document ISO 7816-3 of 1989.
Blatter Harold
Bridgewater Kevin Elliott
Deiss Michael Scott
Horlander Thomas Edward
Barron Jr. Gilberto
Burke Alexander J.
Kurdyla Ronald H.
Thomson Consumer Electronics Inc.
Tripoli Joseph S.
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