System and method for protecting digital data using electronic key

Abstract

The invention relates to a system for protecting digital data through using electronic key and a method thereof, which is used for avoiding digital content to be pirated. The system for protecting digital data at least consists of an electronic key and a supply terminal, wherein the electronic key is provided with a first encryption / decryption unit and sequence codes; the supply terminal is provided with a second encryption / decryption unit corresponding to the first encryption / decryption unit and digital contents; the sequence codes provided by the electronic key allow the second encryption / decryption unit of the supply terminal to encrypt the digital contents according to the sequence codes, and the first encryption / decryption unit of the electronic key decrypts the encrypted digital contents according to the sequence codes.

Description

technical field [0001] The invention relates to a system and method for protecting digital data by using an electronic key, in particular to a system and method for identifying the legitimacy of digital content in an electronic device by using an electronic key with a hot-swappable interface. Background technique [0002] At present, for the content of books, most of them are copied by photocopying. The content of video and music knowledge is reproduced in the form of video tapes and audio tapes. These two copying methods will degrade the quality of the original content as the number of copies increases. With the development of electronic digital technology, the quality of books, videos or music is still the same no matter how many times it is copied, so the requirements for diversified digital contents are becoming more and more urgent. [0003] Intellectual property protection related to digital content has not been well established. When a user purchases a set of digit...

AI Technical Summary

Problems solved by technology

Since the physical protection of intellectual property rights for digital content is relatively weak, if users cannot copy, the assets of digital content purchased by users cannot be guaranteed.

At present, digital content providers solve the property rights issues with users. As far as previous technologies are concerned, for example, they use serial codes to sell digital content discs to users. Content disc protection does not exist, or users are prohibited from copying digital content discs, but in case the user damages or scratches the digital content disc, the user must spend another sum of money to re-purchase the digital content disc

Moreover, it is inconvenient for the user to recognize the serial number of the digital content disc, but the limited media carrier is also inconvenient for the user. For the same digital content disc, the user may wish to watch it with different carriers at different times, or Lend it to others like a book or a CD (no one borrows someone else's CD and borrow it together with the stereo), so this method of protection will not work

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