Nonvolatile semiconductor memory and method of managing...

Details Nonvolatile semiconductor memory and method of managing... Nonvolatile semiconductor memory and method of managing...

2008-04-08

2008-04-08

Peugh, Brian R. (Department: 2187)

Electrical computers and digital processing systems: memory

Storage accessing and control

Control technique

Reexamination Certificate

active

11296274

ABSTRACT:
There is provided semiconductor memory capable of reconfiguring an area to be given an authentication key and access limitation, and there is implemented an information distribution system having an advanced security function using the semiconductor memory.Part of a storage area in the semiconductor memory stores information about the area to be given the authentication key and the access limitation. Alternatively, the authentication key is stored in units of data to be authenticated for limiting an access to stored information. Information is protected doubly by storing encrypted information in the area provided with the access limitation according to the above-mentioned method.

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patent: 8-506915 (1996-07-01), None
patent: 2000-50047 (2000-02-01), None
patent: WO 95/19608 (1995-07-01), None

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