Copyright protection method and system for downloading data by portable terminal

Abstract

The invention relates to a method and a system of copyright protection, which are used for a portable terminal to download data; the invention belongs to the technical field of digital copyright protection and relates to the method and the system of copyright protection in the process of data information transmitting. In the invention, a Bluetooth equipment address is taken as the encrypted information of downloaded data to encrypt the downloaded data, namely, before the data is transmitted or downloaded to the portable terminal which is provided with a built-in Bluetooth module, the Bluetooth equipment address of the portable terminal is added to the appropriate position of the downloaded data and then sent to the portable terminal; when the data is operated or played, the Bluetooth equipment address is extracted from the built-in Bluetooth module of the portable terminal and is used for comparison with the encrypted information added in the encryption of the data; if correct, the data document is operated or played, otherwise, operation is stopped. The method of the invention is characterized by simple encrypting and decrypting, low resource occupancy rate to the equipment, goodconfidentiality, convenient use, and the like, which is specially applicable to the potable terminal with limited hardware performance.

Description

technical field [0001] The invention belongs to the technical field of digital copyright protection, and relates to a copyright protection method and system during the transmission of data information, especially a copyright protection method and system for downloading or transmitting data to a portable terminal, which is used for downloading or transmitting data to a portable terminal. The data on the terminal is protected by copyright to prevent the data from being illegally copied and disseminated. Background technique [0002] As the technology of portable information processing equipment becomes more and more mature, all kinds of portable terminals in use now have a variety of information processing capabilities, and this capability is constantly improving, such as mobile phones based on cellular mobile communication technology, PHS mobile terminals, Mobile communication terminals including SCDMA mobile terminals, PDA, portable MP3 player terminals, portable MP4 player ...

AI Technical Summary

Problems solved by technology

Because this technology encrypts and codes all the data, and then decrypts and plays them according to the key, it places a heavy load on the encryption and decryption devices. For devices such as portable terminals, due to their own performance, it is difficult to process such devices. Work with a large amount of data often takes up a lot of hardware resources, runs slowly, or even fails to run normally

At the same time, due to the use of the key to decode, the data content and the key can also be provided to multiple users at the same time for use on multiple terminals, which also leads to illegal copying; use

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