Binary anti-fake printing method by reverse synchronous-progressing encryption

Abstract

The invention relates to a binary anti-fake printing method by reverse synchronous-progressing encryption. According to the method, binary anti-fake information can be converted into a binary modulation signal by encryption operation and channel encoding, and the anti-fake information is embedded in the full page in a circulating look-up table modulation manner in orderly change of shapes of amplitude modulation websites, so that the anti-fake information can be identified from any one fragment when a printed matter is identified. The method can be widely applied to the field of forgery prevention of printed matters.

Description

Technical field:

[0001] The invention relates to an anti-counterfeiting printing technology, in particular to a reverse synchronous progressive encrypted binary anti-counterfeiting printing technology, which can be used for anti-counterfeiting of various printed products. Background technique:

[0002] The existing relatively common anti-counterfeiting methods are as follows: The first is laser anti-counterfeiting marks, which use laser recessive ink fluorescent ink printing technology to print product logos or special identification patterns into product anti-counterfeiting labels. And the same type of product uses the same label, because the anti-counterfeiting label is easier to forge, and the fake anti-counterfeiting label is used on the counterfeit product, causing the product to be confused, so it is difficult to effectively prevent counterfeiting. The second is the password anti-counterfeiting label. The method adopted is to compile a set of numbers for each product...

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