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:
Jan. 18, 2022
Filed:
Jul. 25, 2017
Telefonaktiebolaget Lm Ericsson (Publ), Stockholm, SE;
Telefonaktiebolaget LM Ericsson (publ), Stockholm, SE;
Abstract
An efficient obfuscation of program control flow, comprising obscuring a control execution flow through a plurality of code blocks of a computer program. It involves obtaining a secret key, initializing a state variable based on the secret key, generating a switching value by processing the state variable through an encoding function, and selecting a code block from among a set of code blocks using the switching value. It further involves executing the block code, which comprises updating the state variable based on a present value of the state variable, and repeating the steps of generating a switching value, selecting a code block, and executing the code block to control execution flow through the set of code blocks.