04621321 is referenced by 154 patents and cites 2 patents.

A data processing system having an architecture for protecting selected system files. The data processing unit includes a secure processing unit operating in a manner independent of the operation of the remainder of the data processing unit for storing and comparing system file attributes and user entity attributes. The comparison of attributes is performed in accordance with a table in the secure processing unit containing the security context. The secure processing unit alone is able to manipulate special data groups called distinguished data objects. The secure processing unti also manipulates a data object identifier that isolates the indentification of the system files from the actual memory storage locations. Apparatus and method are also disclosed for providing secure creation of protected system files that in part eliminates interruption of the data processing system in the process. The architecture also facilitates secure transfer of files between data processing systems.

Title
Secure data processing system architecture
Application Number
6/580910
Publication Number
4621321
Application Date
February 16, 1984
Publication Date
November 4, 1986
Inventor
Richard Y Kain
Minneapolis
MN, US
William E Boebert
Minneapolis
MN, US
Agent
William T Udseth
Assignee
Honeywell
MN, US
IPC
G06F 15/20
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