System and method for accessing discrete data

Details System and method for accessing discrete data System and method for accessing discrete data

2008-04-29

2008-04-29

Chai, Longbit (Department: 2131)

Electrical computers and digital processing systems: support

Data processing protection using cryptography

By stored data protection

C713S169000, C713S170000, C713S171000, C713S189000, C713S190000, C713S191000, C713S192000, C713S194000, C726S030000, C380S259000, C380S260000, C380S261000, C380S262000

Reexamination Certificate

active

07366917

ABSTRACT:
A method for accessing discrete data includes transmitting a write command to a memory, determining whether each data following a header of the file needs to be encrypted according to a data format of a file that is to be written into the memory, transmitting the file header and each data following the file header to a logic unit, turning on the logic unit for encrypting the data determined to be encrypted and writing the encrypted data into the memory, turning off the logic unit for writing the data determined not to be encrypted into the memory directly, and sending a first response signal from the memory when the writing of the file is finished.

REFERENCES:
patent: 5684876 (1997-11-01), Pinder et al.
patent: 7227952 (2007-06-01), Qawami et al.
patent: 2003/0026423 (2003-02-01), Unger et al.
patent: 2004/0071289 (2004-04-01), Rose et al.

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