Hybrid broadcast encryption method

Details Hybrid broadcast encryption method Hybrid broadcast encryption method

2006-02-03

2010-12-07

Arani, Taghi T (Department: 2438)

Cryptography

Key management

Key distribution

C380S277000, C380S281000, C380S284000, C380S044000, C380S047000, C713S150000, C713S171000

Reexamination Certificate

active

07848525

ABSTRACT:
A hybrid broadcast encryption method is provided. The hybrid broadcast encryption method includes setting initialization values, generating a node secret using the initialization values; generating a private secret using the node secret; sending the node secret and the private secret; generating a broadcast message based on a revoked group; encrypting a session key using a key encryption key (KEK) which is allocated to every user group and the broadcast message; and broadcasting to every user the encrypted session key and the broadcast message.

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patent: 2007/0140483 (2007-06-01), Jin et al.
patent: 2004349733 (2004-12-01), None
English translation of JP 2004349733 A.

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