Safety product license management method based on XML encryption and digital certificate

Abstract

The invention relates to a safety product license management method based on XML encryption and a digital certificate, which comprises the steps of applying a license, generating the license, verifying the license and checking the license. The invention ensures the confidentiality, the non-repudiation and the tamper resistance during the software distribution based on the safety of symmetric key / public key and private key theory; a product has a certain popularity in the product inside an enterprise and can be repeatedly used by every product, thereby effectively lowering the software development cost of the enterprise, improving the efficiency of the critical development of the enterprise, and promoting the image of the product of the enterprise.

Description

technical field [0001] The present invention relates to a method for license generation and management of safety software products. It specifically involves the license management method based on XML digital signature and encryption, common attributes and distribution system. Background technique [0002] Current security software generally protects software copyrights and authorizes users through software licenses. Commonly used license generation and management methods are calculated by symmetric key algorithms such as DES (the key is built-in). The problem with this method is that once the encrypted key is leaked, the license can be easily cracked. The other is to dynamically generate the key every time the license is generated, but the key file needs to be encrypted again and then distributed with the software. This also has a similar problem, that is, once the second encryption key is leaked, the license of the entire software is useless. . At present, the multiple s...

AI Technical Summary

Problems solved by technology

Commonly used license generation and management methods are calculated by symmetric key algorithms such as DES (the key is built-in). The problem with this method is that once the encrypted key is leaked, the license can be easily cracked

However, it has certain limitations: first, the customer is required to have a digital certificate in order to digitally sign the license; second, it is required to install software on the other party's machine, which is intrusive to the customer's system; third, the attribute definition of the system It does not have scalability. Once the attributes of the license need to be expanded, the system needs to be changed and upgraded to a large extent. Fourth, it does not have strong manageability, and there is no description of the license management process.

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