Licensing file generating method, software product protection method and system

A technology for file generation and software products, applied to digital data processing parts, instruments, computing, etc., can solve problems such as high risk, single key vulnerable to attack, legal segment copy attack, etc., to achieve extended signature strategy, Effects of preventing illegal copying and increasing difficulty

Inactive Publication Date: 2005-12-07
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantages of the method are: firstly, the single key introduces high risk and is not suitable for the protection of diversified product forms
The disadvantage of the method is: there is still the problem that the overall signature is not conducive to the expansion of the control strategy
The defect of described method is: at first, still there is the vulnerabl

Method used

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  • Licensing file generating method, software product protection method and system
  • Licensing file generating method, software product protection method and system
  • Licensing file generating method, software product protection method and system

Examples

Experimental program
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Embodiment Construction

[0050] In order to realize the protection of software products, the present invention generates a license file based on a digital signature system and realizes the verification of the license file.

[0051] Please refer to Fig. 2, which is a schematic block diagram of the software product protection system of the present invention. The software product protection system includes a license file generating device for generating a license file and a verification device for verifying the legality of the license file. Among them, the license file generating device and the verification device respectively use the corresponding private key and public key to complete the generation and verification of the digital signature of the license file.

[0052] The license file generation device includes an information storage unit, a digital signature generation unit, and a digital signature storage unit.

[0053] The information storage unit is used to store public information and product inform...

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PUM

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Abstract

This invention discloses a generation method for permit documents including the following steps: generating a permit document die plate, storing shared information and product information for a soft product, applying a shared information private key to generate a shared information digital signature, its cleartext data include at least the above mentioned shared information, applying a product information private key to generate its digital signature and storing the signature of the shared information and the product information in a permit document die plate to form a permit document. This invention also relates to a protection method and a system for software products.

Description

Technical field [0001] The invention relates to the field of software product protection, in particular to a method and system for generating a license file and protecting software through the license file. Background technique [0002] With the development of information technology, the software industry has also received more and more attention, and various system software products and application software products have emerged one after another. Generally, software product developers need to invest a huge amount of manpower and material resources in software product research and development. However, once software product development is successful, pirates can copy and sell at low prices with only a small amount of energy, which greatly dampens people's enthusiasm for software product development and seriously hinders the development of the software industry. [0003] In order to curb piracy to protect intellectual property rights, control the application scope of software pro...

Claims

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Application Information

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IPC IPC(8): G06F1/00
Inventor 范云松何迎春谢永政林中
Owner HUAWEI TECH CO LTD
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