System for restricting data access

Details System for restricting data access System for restricting data access

2006-08-18

2011-10-18

Srivastava, Vivek (Department: 2433)

Information security

Access control or authentication

Network

C726S003000, C726S017000, C726S018000, C726S019000, C726S020000, C726S021000, C725S025000, C725S030000, C725S031000

Reexamination Certificate

active

08042157

ABSTRACT:
A filter is arranged to selectively block or allow a data access command from an initiator according to whether the initiator is secure or insecure and whether a data source or destination being accessed is privileged or unprivileged. The data access command contains an identification of the initiator from which the data access command originated and an identification of the data source or destination being accessed. The security filter compares the initiator identification and data source or destination identification contained within the data access command with a list of those initiators defined as secure and a list of those data sources or destinations which are defined as unprivileged. The filter then blocks or allows the data access command signal according to a set of rules.

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