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:
Jun. 23, 2009
Filed:
Feb. 16, 2005
Applicant:
Jeffrey Glen Rennie, Mountain View, CA (US);
Inventor:
Jeffrey Glen Rennie, Mountain View, CA (US);
Assignee:
Rennie Glen Software, LLC, Mountain View, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 21/22 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method for increasing the tamper resistance of a computer software application comprises four steps. In the first step, a datum in the application to protect from tampering is chosen. In the second step, a location in memory into which the datum will be loaded when the application is executed is calculated. In the third step, user-purpose code to modify is chosen. In the fourth step, the chosen user-purpose code is modified so that, when executed, it reads a value from the memory location and uses it in useful calculation.