Data storage with CBC-mode encryption processing

Details Data storage with CBC-mode encryption processing Data storage with CBC-mode encryption processing

2007-07-10

2007-07-10

Moazzami, Nasser (Department: 2136)

Electrical computers and digital processing systems: support

Multiple computer communication using cryptography

Packet header designating cryptographically protected data

C713S161000, C713S181000

Reexamination Certificate

active

09982624

ABSTRACT:
Between a data recording/playback device and a data storage device, CBC-mode encryption processing is executed which encrypts a plurality of encryption keys of content which correspond to sectors. The encrypted data is stored in a header corresponding to the content. The CBC-mode encryption processing is executed by using a storage key unique to media in which the content is stored. For using the content, only by decrypting the key data in media in which mutual authentication is established, the content can be used, so that highly-secure key storage is implemented.

REFERENCES:
patent: 5671283 (1997-09-01), Michener et al.
patent: 5673319 (1997-09-01), Bellare et al.
patent: 5768390 (1998-06-01), Coppersmith et al.
patent: 5838791 (1998-11-01), Torii et al.
patent: 6360320 (2002-03-01), Ishiguro et al.
patent: 6748485 (2004-06-01), Yokota et al.
patent: 2001/0007127 (2001-07-01), Staring

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