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Product source tracing scheme based on PKI (Public Key Infrastructure) and two-dimensional codes

A technology of two-dimensional codes and two-dimensional code information, which is applied in the field of product traceability solutions based on PKI and two-dimensional codes, and can solve problems such as the impossibility of determining input values

Inactive Publication Date: 2012-11-28
袁开国
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Problems solved by technology

This conversion is a compressed mapping, that is, the space of the hash value is usually much smaller than the space of the input. Different inputs may generate the same output, but it is impossible to uniquely determine the input value from the hash value.

Method used

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  • Product source tracing scheme based on PKI (Public Key Infrastructure) and two-dimensional codes

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Embodiment Construction

[0018] Through the technical solution of the invention, users can easily confirm whether the product they purchased is produced by the manufacturer marked on the package. The scheme is implemented by taking the mobile phone as the carrying platform of the two-dimensional code verification module as an example. The specific implementation scheme is as follows:

[0019] (1) The manufacturer's CA system applies, and the CA system provides the private key and the corresponding digital certificate. The private key is stored in the USB KEY physical device and provided to the manufacturer.

[0020] (2) The manufacturer inputs the plaintext of the manufacturer and its product information (referred to as product information) to the two-dimensional code generation module, and the generation module will generate the following two sets of data: the ciphertext of the product information encrypted by the private key and the HASH value of the product information, or Product information plain...

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Abstract

The invention provides a product source tracing scheme based on PKI (Public Key Infrastructure) and two-dimensional codes. The credible two-dimensional codes can be printed at the outer side of a package of each layer of a product by a manufacturer. In each product circulation loop, a product can be verified through the two-dimensional codes. Data of all the circulation loops can be sent to a product source tracing center. The manufacturer, a dealer and a user only need to scan the two-dimensional codes on the product to see a tree state diagram of the product in the entire circulation process. The product source tracing scheme can be used for providing a simple and rapid management manner for product source tracing. Shown by a picture, the scheme at least consists of a product source tracing center module, a CA (Certificate Authority) module, a two-dimensional code generation module and a two-dimensional code verification module.

Description

technical field [0001] The present invention relates to the fields of cryptography, product anti-counterfeiting and food and drug safety. Specifically, the present invention provides a product traceability scheme based on PKI (Public Key Infrastructure: public key infrastructure) and two-dimensional code. Background technique [0002] PKI is a new security technology, which is composed of public key cryptography, digital certificate (Certificate), CA (Certificate Authority: Certificate Authority) and public key security policies. PKI public key infrastructure is a system or platform that provides public key encryption and digital signature services for the purpose of managing keys and certificates. An organization can establish a secure network environment by adopting the PKI framework to manage keys and certificates. PKI mainly includes four parts: certificate in X.509 format and certificate revocation list CRL; CA operation agreement; CA management agreement; CA policy fo...

Claims

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Application Information

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IPC IPC(8): G06Q30/00H04L9/32G06K19/06
Inventor 袁开国袁静国刘强
Owner 袁开国
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