Boots – shoes – and leggings
Patent
1992-04-21
1993-02-16
Clark, David L.
Boots, shoes, and leggings
395650, 364DIG1, 364280, 3642813, 3642817, G06F 944, G06F 900
Patent
active
051877902
ABSTRACT:
In a multitasking, multiuser computer system, a server process temporarily impersonates the characteristics of a client process when the client process preforms a remote procedure call on the server process. Each process has an identifier list with a plurality of identifiers that characterize the process. The server process generates a new identifier list which is either the same as the client process's list, or is the union of the server's and the client's lists. Each object in the system can have an access control list which defines the identifiers that a process must have in order to access the object. The operation system has access checking software for enabling a selected process access to a specified object when the identifers for the process match the list of identifiers in the access control list of the specified object. The server can therefore access all objects accessible to the client while the server is working for the client. The server can restore its original identifier list after completing the services that it performs for the client.
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East Jeffrey A.
Jenness Steven M.
Kelly, Jr. James W.
Ozur Mark C.
Walker James J.
Clark David L.
Digital Equipment Corporation
Fagan Matthew C.
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