Method of authentication of memory device and device therefor

Details Method of authentication of memory device and device therefor Method of authentication of memory device and device therefor

2008-07-15

2008-07-15

Song, Hosuk (Department: 2135)

Electrical computers and digital processing systems: support

Multiple computer communication using cryptography

Particular communication authentication technique

C713S170000, C713S189000, C713S193000

Reexamination Certificate

active

07401222

ABSTRACT:
A memory device authentication method that includes providing a memory device in a host device, and providing both an encryption algorithm, triggering the encryption algorithm during writing of data in the memory device, wherein the encryption algorithm allters the written data and generates a device altered data, then storing the written data in the memory device, running the encryption algorithm in the host device on the data written in the memory device and generating a host altered data, the verifying authenticity of the memory device by comparing the device altered data and the host alerted data. An authentication device and associated system that includes a host device that comprises a unit, a first encryption algorithm that is stored in the host device, and a second encryption algorithm, identical to the first encryption algorithm, that is permanently stored in a memory of the unit.

REFERENCES:
patent: 4888802 (1989-12-01), Cooney
patent: 5150407 (1992-09-01), Chan
patent: 5237609 (1993-08-01), Kimura
patent: 6757832 (2004-06-01), Silverbrook et al.
patent: 0 427 465 (1991-05-01), None
patent: WO 01/43338 (2001-06-01), None

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