Data security protection method and data security protection device

Abstract

The invention relates to a data security protection method and a data security protection device for protecting data security in a computer memory. The method comprises the following steps that: while starting computer equipment, a security module respectively distinguishes and authenticates a user identity and an encryption module, after passing through the distinguishing and the authentication, the security module transmits a data key to the encryption module, in the following use, the encryption module encrypts the memory data for protection, and if the distinguishing and the authentication are not passed, the computer cannot be started. The device comprises the security module and the encryption module, which are arranged in computer equipment, such as a PC host, a PDA, a mobile phone, a PMP or a digital photo frame and the like, and are connected with each other. The method and the device implement the transparent encryption for the memory data of computer equipment and the distinguishing of user identity, and simultaneously, separately store a key and an encryption algorithm, thereby implementing higher security.

Description

technical field [0001] The invention relates to the technical field of computers, in particular to a data security protection method and a data security protection device for protecting computer memory data security. Background technique [0002] With the advent of the information age, data has become more and more important. Most important data and information of companies, industries, and individuals are basically stored in modern storage media, and some important data may be stored in system terminals. For example, in a memory module of a personal computer, a PDA (Personal Digital Assistant, personal digital assistant), a server or other removable memory modules. At present, the memory modules in personal computers, PDAs, servers, and removable memory modules do not have encryption features. Once the memory module is lost, the original data on the memory module may be obtained by illegal users, which seriously threatens personal privacy, business secrets, and even financi...

AI Technical Summary

Problems solved by technology

Others such as the BitLocker (disk encryption bit lock) function that Microsoft has launched since the Vista operating system have realized user identity authentication and data encryption, but the data encryption method it adopts is completed by CPU execution instructions, and its data encryption key Exposed in computer memory, in the current year when computer viruses and Trojan horses are prevalent, the data encryption key is extremely easy to be obtained illegally, and the security of this function is low

Moreover, encrypting and decrypting data by executing instructions through the CPU will greatly reduce the performance of the computer system.

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