Patent ID: 8243930
Filing Date: 2012-08-14
Classification: G09F

Abstract:
1. A method, comprising: forming a first code and a second code directly on a readable part of a product, wherein said first code is formed from a chaotic portion on the readable part that has a chaotic layout created by a chaotic function, said chaotic portion formed directly on said readable part in a way that always forms chaotic results directly on said readable part; said forming comprising using an encryption based technique to form said second code based on said chaotic layout of said first code that is formed directly on said readable part, in a way that a decrypted version of said second code can be compared with said first code; and determining that said product is authentic when said first code agrees with said decrypted version of said second code and determining that said product is not authentic when said first code does not agree with said decrypted version of said second code.