The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 27, 2024
Filed:
Sep. 03, 2021
Siemens Aktiengesellschaft, Munich, DE;
Karl-Hermann Witte, Fürth, DE;
SIEMENS AKTIENGESELLSCHAFT, Munich, DE;
Abstract
A method, device and computer program product for securing access to an encoded variable in a computer program with a plurality of encoded variables that each having its own dynamic signature, wherein when the encoded variable is accessed, the dynamic signature of the variable is modified, where the sum value for all dynamic signatures of all other encoded variables is controlled in an encoded tracer variable, the sum value being controlled in the tracer variables is adapted if a dynamic signature of one of the encoded variables is modified, the encoded variable is compared with the sum value stored in the encoded tracer variable to monitor the sum of the dynamic signatures, and where an error handling process is initiated in the event of a discrepancy such that all signatures in an arithmetically encoded program can be managed in a high-performance manner regardless of the complexity of the program.