Safety three-dimensional code for block chain and generation and decoding method

A technology of three-dimensional code and block chain, which is applied in the field of safe three-dimensional code and generation and decoding, and can solve the problems such as difficult identification of logos or pictures, no correlation, security and confidentiality defects of two-dimensional codes, etc.
CN112418371AActive Publication Date: 2021-02-26上海巨通电子有限公司
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
上海巨通电子有限公司
Publication Date
2021-02-26

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Abstract

The invention discloses a safety three-dimensional code for a block chain and a generation and decoding method. The safety three-dimensional code comprises a code word positioning area, a code word starting point confirmation area, a code word control information area, a code word data information area and a picture area. Pictures, two-dimensional code and / or three-dimensional code words and setsare embedded into the picture area. The generation method comprises the following steps: acquiring data information to be transmitted and a picture, a two-dimensional code and / or a two-dimensional code word to be embedded; extracting picture characteristic value information and storing in a server, and forming data information to be transmitted through encryption, compression and error coding processing; and determining the composition and size of the security three-dimensional code, and filling the security three-dimensional code with the content of each region to generate a corresponding security three-dimensional code. The decoding method comprises the steps of scanning and photographing the safety three-dimensional code, obtaining a picture, processing and restoring the picture, performing error control decoding and decompression on restored information, and reading and decrypting data information through the code scanning terminal. According to the invention, the anti-counterfeiting performance is effectively improved, and the visual identification of the embedded picture is improved.
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Description

Technical field

[0001] The present invention relates to the technical field of information security combining the Internet of Things and blockchain, in particular to a secure three-dimensional code used in the blockchain and a method for generating and decoding.Background technique

[0002] Three-dimensional code is based on two-dimensional code, superimposed with color codewords. Its biggest feature is that color is a new dimension of information, which increases the information capacity and can add more information in the same unit area. , Which can add more secure encrypted information, improve security, and further use information compression algorithms to increase information capacity.

[0003] The three-dimensional code has larger information capacity, the same ease of identification and better security. Whether it is a one-dimensional bar code or a two-dimensional code, it is a two-dimensional space code printed on a plane, on the same coding area , 3D code can contain a large amount o...

Claims

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