Electrical computers and digital processing systems: support – Digital data processing system initialization or configuration – Loading initialization program
Patent
1997-11-14
2000-03-07
Swann, Todd R.
Electrical computers and digital processing systems: support
Digital data processing system initialization or configuration
Loading initialization program
713200, H04K 100
Patent
active
06035397&
ABSTRACT:
The invention relates to a process for data certification as well as to the system implementing the certification process.
The certification of the data is performed by scrambling.
An authority independent of the entity which controls the data source and of the user(s) for which these data are intended, scrambles the data with the aid of control words and encrypts the control words with the aid of an encryption algorithm with key K.
So that a user or the users can descramble the data scrambled by the independent authority, a certification verification device containing the encryption key K is supplied to the user or users under the control of the independent authority.
The certification process and the system associated therewith apply more particularly to conditional-access systems.
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patent: 5191611 (1993-03-01), Lang
patent: 5282149 (1994-01-01), Cohen et al.
patent: 5703951 (1997-12-01), Dolphin
patent: 5721781 (1998-02-01), Deo
patent: 5870476 (1999-02-01), Fischer
IEEE Micro, vol. 12, No. 6, Dec. 1, 1993 pp. 74-81, Kaliski B: "A Survey of Encryption Standards".
IEEE Communications Magazine, vol. 28, No. 5, May 1, 1990, pp. 21-29, XP000132493 Omura J.K.: "Novel Applications of Cryptography in Digital Communications".
Proceedings of the National Electronics Conference, vol. 35, 1981 Oct.. Oak Brook, Illinois US, pp. 296-301 Authentication using the Federal Data Encryption Standard:.
Campinos Arnaldo
Gregoire Louis
Vigneron Jean-Marie
Emanuel Peter M.
Jack Todd
Shoneman David T.
Swann Todd R.
Thomson Multimedia S.A.
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