05187790 is referenced by 182 patents and cites 18 patents.

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.

Title
Server impersonation of client processes in an object based computer operating system
Application Number
373878
Publication Number
5187790
Application Date
April 21, 1992
Publication Date
February 16, 1993
Inventor
James W Kelly Jr
Redmond
WA, US
Mark C Ozur
Redmond
WA, US
Steven M Jenness
Redmond
WA, US
James J Walker
Redmond
WA, US
Jeffrey A East
Aptos
CA, US
Agent
Flehr Hohbach Test Albritton & Herbert
Assignee
Digital Equipment Corporation
MA, US
IPC
G06F 9/00
G06F 9/44
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