05111390 is referenced by 107 patents and cites 15 patents.

A computer system which uses a main processor with main memory, and operates under a specialized software operating system, provides for checking the integrity of its compiler by use of software routines which permit an authorized user or an authorized program to authorize a file as a compiler and additionally will operate to identify any ordinary user and ordinary programs so as to prevent such ordinary user or ordinary program from authorizing a code file as a compiler.

Title
Software security system for maintaining integrity of compiled object code by restricting users ability to define compilers
Application Number
7/234772
Publication Number
5111390
Application Date
August 22, 1988
Publication Date
May 5, 1992
Inventor
Larry R Ketcham
Laguna Niguel
CA, US
Agent
Robert S Bramson
Nathan Cass
Alfred W Kozak
Assignee
Unisys Corporation
PA, US
IPC
G06G 3/02
G06G 9/45
G06G 9/445
G06G 12/14
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