Hard disk encryption method and device

Abstract

The invention discloses a hard disk encryption method and device. The method comprises the steps that a domestic BIOS is used to perform identity authentication; during first starting, the domestic BIOS detects whether a secure storage card exists, when the secure storage card exists, the domestic BIOS reads a key from the secure storage card, and when the secure storage card does not exist, the domestic BIOS randomly generates a key; during non-first starting, the domestic BIOS acquires the key used in last starting; the domestic BIOS configures an encryption mode and a use algorithm and sends the key, the encryption mode and the use algorithm to a hard disk encryption chip; and the hard disk encryption chip acquires the key, the encryption mode and the use algorithm, and the hard disk encryption chip is used to perform hardware-level encryption / decryption on a hard disk. Through the hard disk encryption method and device, encryption speed can be increased, the key can be securely stored, and multiple encryption modes can be applied according to needs.

Description

technical field [0001] The present invention relates to the field of computer security, more specifically, to a hard disk encryption method and device. Background technique [0002] Enterprises and governments, especially secret-related organizations often carry a large amount of secret-related data, and the storage security of these data has become more and more prominent with the development of information technology. In a complex network environment, data leaks occur frequently, and users urgently need a safe and effective data protection system. The disk encryption system uses various encryption technologies to realize ciphertext storage of important data, which guarantees data security to a certain extent, but still faces problems such as slow full disk encryption speed, easy loss or theft of keys, and single encryption algorithm. [0003] Aiming at the problems of the disk encryption system in the prior art, such as slow encryption speed, easy loss of keys, single enc...

AI Technical Summary

Problems solved by technology

The disk encryption system uses various encryption technologies to realize ciphertext storage of important data, which guarantees data security to a certain extent, but still faces problems such as slow full disk encryption speed, easy loss or theft of keys, and single encryption algorithm.

[0003] Aiming at the problems of slow encryption speed, easy loss of keys, and single encryption algorithm in the existing disk encryption system, there is currently no effective solution

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