OTP-SD electronic publication encryption method

A technology of OTP-SD and electronic publications, applied in the direction of electronic digital data processing, instruments, program/content distribution protection, etc., can solve the problem of reducing SD cards, etc., and achieve the effect of great development potential and high market foresight

Inactive Publication Date: 2010-09-22
JIANGSU XINGUANGLIAN TECH
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AI Technical Summary

Problems solved by technology

[0006] The SD card with hard encryption uses a dedicated read-write chip and a specific interface protocol, so that unauthorized users cannot copy the contents of the SD card, but the interface requirement that it must be used in conjunction with a dedicated read-write chip reduces the versatility of the SD card , and the scope of use, can only be applied on a specific terminal

Method used

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  • OTP-SD electronic publication encryption method
  • OTP-SD electronic publication encryption method
  • OTP-SD electronic publication encryption method

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Embodiment Construction

[0026] The present invention will be further described below in conjunction with drawings and embodiments. The present invention improves the traditional SD card and encryption method on the basis of using the universal SD card interface, enhances the copyright protection function, and enables the majority of users and reading terminals to identify, replaces the traditional storage medium with semiconductor storage, and issues electronic publications prerequisites and basic guarantees.

[0027] Such as figure 1 As shown, the source data of the electronic publication is hashed and encrypted to form three parts of the data to be copied: the encrypted file containing copyright protection information, the special reader, and the key, which are respectively burned to the specified OTP-SD card. within the area.

[0028] The source data of electronic publications must be protected by encryption before they can be burned into the OTP-SD card. The present invention uses key informati...

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Abstract

The invention provides an OTP-SD electronic publication encryption method; a logic unit of an OTP-SD main control chip is pre-programmed, a storage unit in an OTP-SD card is divided into two parts, i.e. a file system and a non-public storage area, an agreed authentication string is burned in a register of the main control chip, and the access to the non-public storage area is controlled and authenticated; and the data of an electronic publication and a special reader are stored in the file system, and a key is stored in the non-public storage area. Based on the use of a universal SD card interface, a traditional SD card and an encryption method are improved, thereby enhancing the copyright protection function and enabling users and reading terminals to identify; and semi-conductor storageis used for replacing a traditional storage medium so as to publish the electronic publication.

Description

technical field [0001] The invention relates to an OTP-SD electronic publication encryption method, in particular to an encryption method by changing the OTP-SD card control chip program and a special reader. Background technique [0002] At present, there are two interface modes used by SD cards and SD card readers: SD MODE and SPI MODE. Ordinary SD cards cannot implement anti-copy and copyright protection functions under these two protocols. [0003] It is a relatively common effective protection method to rewrite the original data through encryption to protect the original data. [0004] There are two types of SD card data encryption: soft encryption and hard encryption: [0005] The SD card with soft encryption has nothing to do with the interface protocol. By using special reading software to read the encrypted data, it is easy to crack. After the key and encryption method are cracked, it will form a broken situation, which is more effective for data protection. Low. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F21/00G06K7/00G06F21/10
Inventor 唐建伟承铁冶孙建平蒋韧
Owner JIANGSU XINGUANGLIAN TECH
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