Method and apparatus for decrypting encrypted data...

Details Method and apparatus for decrypting encrypted data... Method and apparatus for decrypting encrypted data...

2004-03-24

2009-02-24

Brown, Christopher J (Department: 2434)

Electrical computers and digital processing systems: support

Multiple computer communication using cryptography

C380S277000, C713S171000

Reexamination Certificate

active

07496749

ABSTRACT:
A method and an apparatus for decrypting encrypted data transmitted wirelessly by updating a key-table comprises a receiver in wireless communication with a sender. The method includes receiving an encrypted data from the sender; searching a key-table of the receiver for a decryption key corresponding to the encrypted data; if the decryption key is not stored in the key-table, driving the receiver for searching a master list of the receiver for the decryption key and transferring the decryption key from the master list to the key-table to update the key-table; and decrypting the encrypted data through utilizing the decryption key stored in the key-table. The method also includes the option of disabling the sending of an acknowledgement message from the receiver to the sender after having received data from the sender.

REFERENCES:
patent: 4607137 (1986-08-01), Jansen et al.
patent: 6973071 (2005-12-01), Bourk
patent: 2003/0105717 (2003-06-01), Kim et al.
patent: 2005/0154871 (2005-07-01), Lin et al.

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