Inventors:
Larry J. Yount - Scottsdale AZ
Nicholas J. Wilt - Phoenix AZ
Bryan H. Hill - Phoenix AZ
Donald A. Peterson - Phoenix AZ
Assignee:
Honeywell Inc. - Minneapolis MN
International Classification:
G06F 1130
Abstract:
Verification of proper operation of computer programs executing in a central processor and protection of critical data is accomplished by an independent software monitor which accepts data keys from the executing program and outputs defined legitimate codes in response thereto. Legitimate codes and selected portions of input data keys are compared to validate proper softward execution.