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.

Date of Patent:
Dec. 24, 2019

Filed:

Mar. 01, 2012
Applicants:

Berndt Gammel, Markt Schwaben, DE;

Stefan Mangard, Munich, DE;

Steffen Sonnekalb, Taufkirchen, DE;

Inventors:

Berndt Gammel, Markt Schwaben, DE;

Stefan Mangard, Munich, DE;

Steffen Sonnekalb, Taufkirchen, DE;

Assignee:

Infineon Technologies AG, Neubiberg, DE;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 21/52 (2013.01); G06F 21/54 (2013.01); G06F 9/48 (2006.01);
U.S. Cl.
CPC ...
G06F 21/52 (2013.01); G06F 9/4812 (2013.01); G06F 21/54 (2013.01);
Abstract

A signature module calculates a signature during the execution of a program by a central processing unit based on program instructions to the central processing unit, and stores the signature in a signature register of the signature module. The signature module includes: a calculation unit configured to generate a signature value based on program instructions executed on the central processing unit; and an instruction information interface configured to receive at least one item of instruction information from the central processing unit which indicates whether an instruction currently being executed by the central processing unit was jumped to indirectly or directly.


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