Electrical computers and digital processing systems: support – System access control based on user identification by...
Reexamination Certificate
2007-09-19
2011-11-15
Zand, Kambiz (Department: 2434)
Electrical computers and digital processing systems: support
System access control based on user identification by...
C713S159000, C713S165000, C713S167000, C713S185000, C713S191000, C380S044000, C726S026000, C726S027000, C726S028000, C726S029000, C726S030000, C726S018000, C726S019000, C726S020000, C711S152000, C711S154000, C711S155000
Reexamination Certificate
active
08060751
ABSTRACT:
A programmable electronic device (10) stores a number of cipher-text software modules (14) to which access is granted after evaluating a user's token (55, 80, 82), a software-restriction class (58) for a requested software module (14), and/or a currently active access-control model (60). Access-control models (60) span a range from uncontrolled to highly restrictive. Models (60) become automatically activated and deactivated as users are added to and deleted from the device (10). A virtual internal user proxy that does not require users to provide tokens (80, 82) is used to enable access to modules (16) classified in a global software-restriction class (62) or when an uncontrolled-access-control model (68) is active. Both licensed modules (76) and unlicensed modules (18,78) may be loaded in the device (10). However, no keys are provided to enable decryption of unlicensed modules (18,78).
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Hardy Douglas Allan
Kitaj Paul Thomas
Paskett Sherman W.
Seeker Frank Edward
Tuggenberg Steve Robert
General Dynamics C4 Systems, Inc.
Meschkow & Gresham P.L.C.
Tran Tongoc
Zand Kambiz
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