Method of sharing bus key and apparatus therefor

Electrical computers and digital processing systems: support – Multiple computer communication using cryptography – Particular communication authentication technique

Reexamination Certificate

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C380S044000, C380S278000

Reexamination Certificate

active

07975141

ABSTRACT:
A method and apparatus of sharing a bus key is provided, the method including receiving at a first device a device key, encrypted using an encryption key, from a storage device; decrypting the encrypted device key using a decryption key corresponding to the encryption key; creating a random number, and generating a bus key using the created random number and the decrypted device key, by which data to be transmitted through a bus can be encrypted using the bus key; and transmitting the generated bus key to a predetermined device connected to the first device via the bus.

REFERENCES:
patent: 2002/0141577 (2002-10-01), Ripley et al.
patent: 2002/0141578 (2002-10-01), Ripley et al.
patent: 2003/0009668 (2003-01-01), Chan et al.
patent: 2005/0081047 (2005-04-01), Kitani
patent: 2005/0089165 (2005-04-01), Kitani et al.
patent: 2005/0160284 (2005-07-01), Kitani et al.
patent: 2005/0198529 (2005-09-01), Kitani
patent: 2007/0209077 (2007-09-01), Kitani
patent: 2008/0069354 (2008-03-01), Kitani et al.
patent: 2008/0289038 (2008-11-01), Kim et al.
patent: 2010/0161972 (2010-06-01), Staring et al.
patent: 2004/053699 (2004-06-01), None

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