Flash memory apparatus with secret function

Abstract

This invention provides a flash memory with the privacy function composed of a flash memory device and a decipher device, among which, an electronic computer reads and writes information in the flash memory, which has a cipher device for ciphering the information, the decipher device releases the ciphering operation of the cipher device of the internal cipher device. This invention utilizes a fix cipher method to protect information safety, which installs a cipher device to rearrange all stored information to gash to reduce the probability of stealing the internal information by non-users.

Description

technical field [0001] The invention relates to a flash memory storage device with a security function, especially a device that adds an encryption action in the process of reading and writing original data. Background technique [0002] IDE (Integrated Device Electronic), generally the motherboards on the market have a built-in IDE transmission interface. The early development of the IDE interface was mainly to connect the hard disk drive. Later, due to the development of the optical drive, the improved interface of E-IDE was derived. , and now it has been developed to the ATAPIE-IDE interface specification. In addition to supporting faster hard drive speeds, it also defines the control commands for IDE devices. If the device needs to be connected through the IDE interface, a 40Pin cable is required to connect the board to the connector of the device, and a cable can connect up to two IDE devices, only need to set the jumper of Master and Slave. The biggest advantages of t...

AI Technical Summary

Problems solved by technology

[0007] Traditional general flash memory storage devices, such as figure 1 As shown, the general flash memory (100) is composed of a flash memory array (120), a flash memory controller (130) and an interface (140), which is passed through the electronic computer (300) through the interface ( 310) to the processor (320) for data transmission, reading and writing, and deleting its data. Generally, there are USB-interface flash drives and IDE-interface DOM (Disk OnModule) solid-state drives and SD, CF, I- Stick, Memory Stick, etc., traditional flash memory storage device security methods generally protect data in the form of software encryption, which is characterized by simplicity and security, but it is easy to be decoded and deciphered, and the data itself has no encryption protection. The data in the flash memory has the flaw of being deciphered

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