Finger print structure in digital products, its authentication and digital products issue system

Abstract

The invention relates to an in-digital product fingerprint constructing and verifying method, and the constructing method obtains purchase secret information from a purchaser, and uses a copyright server to construct an evidence fingerprint unable to be forged, and then uses a copyright issuing server to construct an ID fingerprint with license issued by the copyright server and sale information, and finally adopts fusion technique to construct a fingerprint-containing copy. And the verifying method extracts the ID fingerprint stored in the digital product to check the product license and identify the ID of the purchaser, and then checks and confirms the belonging relation by comparability of the evidence fingerprint. Correspondingly, the invention provides a digital product issuing system, comprising purchasing device, copyright issuing server and copyright server. And it provides a user-friendly and simple-to-apply method, largely improving safety and extendibility of the existing system.

Description

technical field [0001] The invention relates to a method for constructing and verifying digital fingerprints, in particular to a method for constructing and verifying fingerprints for digital products, and a digital product issuing system for realizing the method, belonging to the field of software technology. Background technique [0002] With the application and popularization of Internet and digital technology, the media industry based on e-commerce has developed rapidly. However, the characteristics of digital products that are easy to modify, copy and spread make piracy more and more rampant, and copyright protection is becoming more and more important. Moreover, in the existing digital product sales services on the Internet in e-commerce (such as MP3, books, software, movies, etc. download services), usually the copy of the digital product is directly transmitted to the buyer, so that the sales security cannot be guaranteed. The certificate cannot be monitored, and the...

AI Technical Summary

Problems solved by technology

For example, electronic currency and electronic transaction systems based on cryptographic technology can guarantee the security and confidentiality of data in sales, but cannot provide support for copyright protection; It is relatively effective, but it cannot be identified by pirates to deter piracy, nor can it provide effective evidence in court and achieve fairness and legitimacy in electronic transactions, especially the imperceptible watermark that has multiple watermark embedded copyrights. Controversial issue, limiting its use in copyright protection

[0004] On the other hand, the existing e-commerce transactions have higher requirements on the computing and storage capabilities of the equipment used to purchase digital products, and even require the same capabilities as the distribution server. As far as the equipment actually used by buyers is concerned, the There are significant limitations in the implementation

For example, using a mobile phone to download mp3 songs from a website through GPRS+WAP technology, the buyer's mobile phone can only perform simple calculations on the transaction, and there is not enough processing power and storage space for complex business and password protocols. The information provided by the user is also extremely limited

[0005] In short, copyright protection technology not only needs to achieve control access permission and copyright certification, but also needs to meet functional requirements such as tracking and trial of pirates, and convenient processing, and existing technologies are currently unable to meet these requirements

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