Chaining key broadcasting reception system and chaining key...

Details Chaining key broadcasting reception system and chaining key... Chaining key broadcasting reception system and chaining key...

2006-05-02

2006-05-02

Song, Hosuk (Department: 2135)

Cryptography

Key management

C380S228000, C380S278000, C380S279000, C380S281000, C713S157000

Reexamination Certificate

active

07039191

ABSTRACT:
In the chaining key broadcasting reception system, a chaining key reception unit receives a chaining key, an identifier of the key in question and a target key identifier indicative of a chaining key to be decoded by the key in question; a chaining key management unit takes out an already stored chaining key by using the target key identifier received by the chaining key reception unit; and a chaining key decoding unit decodes the chaining key received by the chaining key reception unit by using the chaining key sent from the chaining key management unit to generate a new chaining key.

REFERENCES:
patent: 5915018 (1999-06-01), Aucsmith
patent: 6157719 (2000-12-01), Wasilewski et al.
patent: 6219422 (2001-04-01), Sato
patent: 10-164550 (1998-06-01), None
patent: 11-112950 (1999-04-01), None
patent: 2001-338212 (2001-12-01), None
patent: 2002-034007 (2002-01-01), None
patent: 2002-057637 (2002-02-01), None
patent: 2002-116976 (2002-04-01), None

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