Method for managing the access to a memory, by using passwords

Details Method for managing the access to a memory, by using passwords Method for managing the access to a memory, by using passwords

2011-07-26

2011-07-26

Srivastava, Vivek (Department: 2433)

Electrical computers and digital processing systems: support

System access control based on user identification by...

Using record or token

C726S002000, C726S004000, C726S009000, C713S182000, C713S183000, C713S161000, C713S168000

Reexamination Certificate

active

07987372

ABSTRACT:
A method for managing the access to a memory space shareable by several users, by using passwords, comprises: defining a maximum number of passwords, providing a password storage zone, dividing the shareable memory space into a plurality of blocks greater in number than the maximum number of passwords, providing in each block a parameterization field for parameterizing the protection of the block, providing in each parameterization field a binary index smaller in size than a password and designating a password assigned to the protection of the block, and allocating, to each block, access rights requiring a password to be presented corresponding to the password designated by the index present in the block parameterization field. Application is provided particularly but not exclusively to multi-user integrated circuits.

REFERENCES:
patent: 5469564 (1995-11-01), Junya
patent: 5796943 (1998-08-01), Fujioka
patent: 6563600 (2003-05-01), Young
patent: 2004/0078511 (2004-04-01), Vogt et al.
patent: 2005/0015601 (2005-01-01), Tabi
patent: 2005/0271156 (2005-12-01), Nakano
patent: 2 248 324 (1992-04-01), None

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