Active and controllable hard disk data deleting method and device without operating system

Abstract

The invention discloses an active and controllable hard disk data deleting method and device without an operating system. The method can achieve the periodic detection of whether a geographic positionsensitive high-risk event happens or not through the combination of a security chip and a positioning chip under the condition that the operating system is not needed; when it is detected that a geographic position sensitive high-risk event occurs, a sector where high-security-level data is located is positioned through an independent hardware-level file system analysis algorithm of an operatingsystem; under the condition that an operating system is not needed, the sector is directly encrypted, the secret key is permanently deleted, and the sector is directly subjected to multiple times of random number copying, so that high-security-level data deletion in multiple states of startup / dormancy / shutdown is realized; therefore, automatic data deletion under the conditions that the secret-related computer is lost, a secret-related computer carrier is stressed by strong force, personnel in a secret-related unit are taken away from the secret-related computer and the like is realized, and the security of the secret-related data is ensured.

Description

technical field

[0001] The invention relates to the technical field of information security, in particular to an active and controllable hard disk data deletion method and device without an operating system. Background technique

[0002] The loss of high security level data will bring serious consequences. In order to ensure the security of high security level data, the country has formulated a strict confidentiality system. Be sure to keep it with you when you encrypt your computer. However, a strict confidentiality system cannot replace confidentiality technology. In special cases, high-security data may still face a huge risk of leakage. Some scenarios such as:

[0003] (1) The internal personnel of the unit intentionally or unintentionally take the classified computer out of the confidential room;

[0004] (2) A staff member who goes out with a classified computer is coerced by force;

[0005] (3) Loss of confidential computers carried out, etc.

[0006] Therefore, o...

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