Network system, terminal, and method for encryption and...

Details Network system, terminal, and method for encryption and... Network system, terminal, and method for encryption and...

2008-03-18

2008-03-18

Moazzami, Nasser (Department: 2136)

Cryptography

Key management

Key escrow or recovery

C713S163000, C713S169000, C380S286000

Reexamination Certificate

active

07346171

ABSTRACT:
Provides encryption methods, and systems and apparatus corresponding decryption method systems and apparatus in which terminals belonging to a subset selected as a recipient group can collaborate to decrypt encrypted information. In an example embodiment, a sender and recipients communicate information over a network. The sender sends information encrypted by using a group key that can be decrypted by collaboration among a given number of recipients to the recipients in a predetermined recipient group. On the other hand, the recipients receive encrypted data from the sender, exchange partial information concerning the encrypted data among a plurality of recipients in the recipient group to obtain decryption information used for decrypting the encrypted data, and decrypt the sent information by using the decryption information.

REFERENCES:
patent: 5475757 (1995-12-01), Kelly
patent: 5768391 (1998-06-01), Ichikawa
patent: 5956407 (1999-09-01), Slavin
patent: 6240188 (2001-05-01), Dondeti et al.
patent: 6263435 (2001-07-01), Dondeti et al.
patent: 6295361 (2001-09-01), Kadansky et al.
patent: 6820204 (2004-11-01), Desai et al.
patent: 6834310 (2004-12-01), Munger et al.
patent: 6972864 (2005-12-01), Lapstun et al.
patent: 2001/0023487 (2001-09-01), Kawamoto
patent: 10-260903 (1998-09-01), None
patent: 2000-151573 (2000-05-01), None

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