SATA hard disc physical enciphering system based on MEMS enciphered lock and double FPGA

Abstract

The invention relates to a SATA hard disk encrypting system based on MEMS code lock and double FPGA, belonging to the technical field of information security. An MEMS code lock drive and authentication module communicates with a special FPGA board for physical authentication, a PCI controller converts instructions on a PCI bus into internal bus instructions of a first FPGA chip, a control word isoutputted to a MEMS code lock driving circuit by an I / O signal expanded chip to drive a MEMS code lock to decode, at the same time, the MEMS code lock generates a key signal, a key processing module reads a key and judges the key is correct or erroneous: if the key is correct, the key processing module sends the key to first FPGA chip, and returns to a host through a PCI controller, the host startsa connection and scan hardware module after receiving the key, the system recognizes an encrypted hard disk, and then the hard disk information can be read / written correctly; or else, the key process ing module sends a rest phase to PCI local bus, resets the MEMS code lock, and returns an erroneous password information to the host.

Description

technical field [0001] The present invention relates to a system in the technical field of information security, in particular to a SATA hard disk physical encryption system based on MEMS (micro-electro-mechanical systems) combination locks and dual FPGAs (field-programmable gate arrays). Background technique [0002] Information security is of great significance to enterprises, governments, national defense and other departments. Generally, the existing hard disk encryption methods store the key through the storage medium, and use a comparator to compare whether the input key is correct or not. This method has poor confidentiality and is easy to crack. Moreover, most hard disk encryption systems do not have authentication functions, and illegal users who can enter the system can still read hard disk information, and the security and confidentiality of the system is greatly reduced. [0003] After searching the literature of the prior art, it was found that the Chinese pate...

AI Technical Summary

Problems solved by technology

This method of storing the key through the memory is easy to be cracked by illegal users, and the confidentiality is poor

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