High-security radio frequency fingerprint U disk and secure implementation method

Abstract

The invention discloses a high-security radio frequency fingerprint U disk which comprises a security chip, a radio frequency fingerprint module and a NANDFLASH memory. The security chip comprises a USB2.0 / 3.2 interface and a UART interface, the USB2.0 / 3.2 interface is used for connecting a PC end, and the UART interface is used for connecting the radio frequency fingerprint module, receiving a living fingerprint information of a user, and determining whether the user has permission to access the high-security radio frequency fingerprint U disk through the PC end. The fingerprint module is used for collecting the live fingerprint information of the user and transmitting the live fingerprint information of the user to the security fingerprint chip through the UART interface. The NANDFLASH memory is used as a storage space of the U disk and is bidirectionally connected to the security chip. In the embodiment of the present invention, the security of the data stored in the fingerprint U disk is effectively guaranteed.

Description

Technical field [0001] The present invention and the field of data security technology particularly relate to a high-security radio frequency fingerprint U disk and a security implementation method. Background technique [0002] With the rapid development of information technology, as a mobile storage medium, U disk has the characteristics of small and beautiful, large storage capacity, easy to carry, and low price. It has been widely used by people; however, there are seemingly convenient U disks. Serious security risks. Once the USB flash drive is lost or stolen, the important files and data in it may be leaked by criminals, causing serious consequences or economic losses; therefore, the identity authentication method of the USB flash drive is important for enhancing the storage security of the USB flash drive. Said that it has received more and more attention. [0003] In theory, there are three main elements of identity authentication, one is the password information recorded ...

AI Technical Summary

Problems solved by technology

[0005] However, this problem is only solved, and it is not enough for security considerations; the fingerprint U disk stores data in plain text in flash memory (such as NANDFLASH); the user disassembles the fingerprint U disk and replaces it on another U disk, Therefore, it is our research direction to encrypt and store internal data; most common encrypted U disks use foreign encryption algorithms AES and DES to encrypt data in hardware, and this encryption algorithm is very safe. High, but foreign security algorithms have back-end risks

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