Software authorization system based on public key cryptosystem

Abstract

The invention discloses a software authorization system based on public key cryptosystem. The software authorization system comprises a server end and a client end, wherein the server end comprises an institution authorization certification generation module, a receiving module, a verification module and a user authorization certificate generation module. The user authorization certificate generation module comprises a digital signing module used for carrying out digital signing on computer hardware characteristics h0 in a user registration file with an RSA private key to generate S0, an encryption string generation module used for carrying out preset hybrid operations on obtained software version information v, user information u, an authorization term ex, current time cur and s0 to generate an encryption string signB64 and a certificate generation module used for generating a user authorization certificate with the encryption string signB64 and the RSA public key. The method can prevent software from being illegally copied, meanwhile, the software can be managed by a software issuer in a concentrated mode, and upgrading and tracking of the software, pushing personalized services for users and other after-sale management are facilitated.

Description

technical field [0001] The invention relates to a software authorization method, in particular to a software authorization system based on a public key cryptosystem. Background technique [0002] The existence of piracy has become an important factor restricting the development of the computer software industry. Software is easy to copy and the copy cost is low. Now companies urgently need to take technical measures to protect their copyrights. Therefore, it is of great practical significance to study and design an effective, practical and secure software authorization method. [0003] In public key cryptography, the encryption key is different from the decryption key. Among all public key cryptosystems so far, the RSA algorithm is the most famous and widely used one. The RSA algorithm solves the problem of using the public channel transmission and distribution of the key of the symmetric encryption algorithm well. It can also use the RSA algorithm to complete the digital ...

AI Technical Summary

Problems solved by technology

However, as the use of the Internet becomes more and more popular, many shortcomings are also exposed: 1) It is suitable for traditional one-time permanent authorization, and trial versions and on-demand purchases cannot be realized; 2) The existence of hardware brings additional production and initialization , logistics, installation and maintenance costs; 3) installation of drivers and client components and additional hardware devices affect customer experience; 4) electronic distribution based on the Internet cannot be realized; 5) it is difficult to perform upgrades, tracking and after-sales management

However, the current license file authorization mechanism still has obvious deficiencies in the use of institutional management environments, and it cannot realize modular authorization by user level

The organization administrator role cannot effectively manage the authorization information of ordinary users under it

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