US Patent 7506177 Tamper resistant software encoding and analysis
Patent 7506177 was granted and assigned to Cloakware on March, 2009 by the United States Patent and Trademark Office.
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The present invention relates generally to computer software, and more specifically, to a method and system of making computer software resistant to tampering and reverse-engineering. Tampering refers to changing computer software in a manner that is against the wishes of the original author, and is distinct from obscurity techniques which do not change the underlieing data or control flow of a program. Broadly speaking, the method of the invention is to analyse the effectiveness of various encoding techniques by measuring the number of possible decodings corresponding to a given encoded world. This analysis gave rise to a number of new data flow encoding techniques including alternative mixed encoding (a combination of linear and residue number encoding), and multinomial encoding.
US Patent 07506177 Tamper resistant software encoding and analysis US Patent 7506177 Tamper resistant software encoding and analysis
US Patent 07506177 Tamper resistant software encoding and analysis
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