Secrecy isolation hard disk and secrecy method thereof

Abstract

The invention discloses a secrecy isolation hard disk which comprises a hard disk interface, a startup disk, an encrypting and decrypting module, a controller, a local secrecy disk and a remote receiving and transmitting secrecy disk, wherein the hard disk interface is connected with a computer mainboard; the local secrecy disk is physically isolated from the remote receiving and transmitting secrecy disk and used for storing secrecy data; and the remote receiving and transmitting secrecy disk is used for storing unclassified data. The invention also discloses a secrecy method of the secrecy isolation hard disk, a computer reads the startup disk data of the secrecy hard disk after being switched on, the startup disk leads a system to enter a login authentication program, and the secrecy isolation hard disk and an authentication KEY are mutually authenticated; if the authentication passes, the login authentication program prompts a user whether data is exchanged or not; if so, the dataexchange is carried out; otherwise, a working state of the secrecy isolation hard disk is selected; and the secrecy isolation hard disk resets the working state to start to work according to the selection. The hard disk realizes the physical isolation on a single hard disk, the two secrecy disks do not have the problem of electromagnetic leakage, the hard disk grade full disk encryption is realized, and the safety is high.

Description

technical field [0001] The invention relates to the technical field of hard disk security, in particular to a security isolation hard disk and a security method thereof. Background technique [0002] In the patent document of Chinese Patent Application No. 200410025825.5 "Computer Hard Disk Data Encryption Method and Its Device", a special encryption and decryption device for PCI interface is added between the hard disk and the host to take over all the control signals and response signals between the host and the hard disk , so as to control the encryption and decryption process and encryption and decryption operation of the actual data stream of the hard disk. In the patent document of Chinese patent application No. 00104780.9 "hard disk device with security function and its security method", a hard disk data protection method is provided. The password of the hard disk is set in advance. When the hard disk is connected to the host system, it is identified by external input...

AI Technical Summary

Problems solved by technology

Chinese patent application No. 00104780.9 "hard disk device with security function and its security method", this protection method does not encrypt and store the data on the hard disk, but prevents unauthorized users from accessing the hard disk data through access control. Hard disk data can be stolen through abnormal technical means

Chinese Patent Application No. 02113032.9 "A Device and Method for Realizing Hard Disk Safety Isolation" requires adding special hardware between IDE interfaces, which is not suitable for notebook computers. Also, this device does not have encryption and decryption functions. Once the computer or hard disk is stolen, the data will be lost. can be obtained illegally

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