Cpk security system and method based on two-dimensional code authentication security

The present invention discloses a security system and a two-dimensional code security authentication method based on CPK, the system comprising: CPK Manager: is responsible based on user identity, generating and distributing a public key CPK and CPK private matrix; secure two-dimensional code generation system: responsible for private use CPK CPK management center for distribution of product information digitally sign, and product information is encrypted, then the digital signature and product information ciphertext package generated two-dimensional code; secure two-dimensional code authentication system: is responsible for the management of CPK APP Center released a program embedded public key matrix is ​​downloaded to the mobile handset, the use of the APP program to validate product dimensional code to determine whether a product is genuine. The present invention supports generic authentication, can be used to build an integrated security system. Product manufacturers write two-dimensional code label based cryptographic signature CPK prevent tampering. CPK using public key technology, public key matrix is ​​disclosed, for validation purposes. Using the client program can be easily verified offline.