Portable storage device encryption system and encryption method

Abstract

The invention discloses a portable storage device encryption system. The portable storage device encryption system comprises an encryption and decryption micro controller unit (MCU), a storage unit, an interface unit, and a verification unit, wherein an encryption and decryption algorithm program is solidified in the encryption and decryption MCU to perform encryption and decryption processing on data, the storage unit is connected with the encryption and decryption MCU to achieve buffering storage of input and output data, the interface unit is connected with the encryption and decryption MCU to provide a connection interface to external devices, and the verification unit is connected with the encryption and decryption MCU to perform password verification for a user to obtain use authorization. Meanwhile, the invention further discloses a portable storage device encryption method comprising the following steps that the encryption system is connected between a portable storage device and a computer; the user performs password verification on the encryption system to obtain a right of use; after a password is successfully verified, the encryption system encrypts data in the computer and transmits the data to the portable storage device, or decrypts the data in the portable storage device and transmits the data to the computer.

Description

technical field [0001] The invention relates to the technical field of information security of a mobile storage device, in particular to an encryption system and an encryption method of a mobile storage device that can be applied independently. Background technique [0002] With the gradual improvement of people's awareness of information security, the demand for encrypted mobile storage devices, especially encrypted mobile hard disks and U disks, continues to expand. Traditional encryption systems for encrypted mobile hard disks and U disks are based on mobile hard disks and U disks. Embedded with a chip for hardware encryption to realize hardware encryption, the currently popular encryption algorithm in the world is AES (Advanced Encryption Standard, Advanced Encryption Standard), and the domestic mainstream is SM1 (S-Box Modified1) algorithm, etc. Due to the continuous upgrading of the capacity and transmission speed of the mobile hard disk and U disk, the user will be el...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problem that the encryption system of the existing mobile storage device cannot be reused, and to provide an encryption system independent of the mobile storage device and a corresponding encryption method

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