Anti-fake code generation and verification method based on cipher machine and universal serial bus key (USBKey)

Abstract

The invention provides an anti-fake code generation and verification method based on a cipher machine and a universal serial bus key (USBKey). Calculation is performed to generate a specific anti-fake code according to parameters such as tax number, sum and code of an invoice, an invoice number and an invoice-making-out date, and a verification method is supported. USBKey data verification is synchronously provided, the problem of low USBKey timeliness is solved, effective, safe and timely 'one invoice one code' can be achieved, the cipher machine is applied, an algorithm which can support SM1 / SM2 / SM3 / SM4 / 3DES / SSF33 encryption is provided, an anti-fake code with national standard rule is generated according to invoice information of identify number of invoice maker taxpayer, invoice sum, invoice code, invoice number and invoice making date, hidden dangers that exist in network security can be avoided, and the problem of timeliness can not be solved if secret keys that are instilled by the USBKey are different from any group of secret keys of the cipher machine.

Description

technical field [0001] The invention relates to the technical field of computer applications, in particular to an anti-counterfeit code generation and verification method based on a cipher machine and a USBKey, which provides effective invoice identification and authenticity verification for the existing network invoice and electronic invoice fields. Background technique [0002] The invoice management system is becoming more and more mature, and the concept of controlling taxes by invoices has gained broad consensus. Therefore, it is more important to verify the authenticity of invoices, and it is more necessary to strengthen network security and verification methods. [0003] The use of online invoices and electronic invoices relies on the Internet. In practical applications, the network has very unstable security issues. Once data leaks, the consequences will be disastrous. [0004] At present, USBKey is mainly used as two ways of verifying identity and storing data. In ...

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is achieved in the following manner, because there is a problem of low timeliness in offline storage of invoice data by USBKey, the same anti-counterfeit code is used under the premise of ensuring that the USBKey key for filling is the same as the set of keys fixed by the encryption machine. Generate algorithms and rules, and then rely on cipher machine verification to effectively solve the problem of low timeliness, including the following steps:

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