Safety product license management method based on XML encryption and digital certificate
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- LINKAGE SYST INTEGRATION
- Publication Date
- 2010-04-14
- Estimated Expiration
- Not applicable · inactive patent
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Abstract
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...