Bridge encryption and decryption chip card

Abstract

The invention provides a bridge type encryption and decryption chip card capable of connecting a main board and a memory module. The bridge type encryption and decryption chip card comprises an authentication module and an encryption and decryption module, wherein the authentication module is used for judging the legitimacy of access requests for different areas of the memory module; the encryption and decryption module is used for encrypting data written into the memory module when the authentication module judges that the access requests are legal, and decrypting the data when the main board reads the data of the memory module. According to the bridge type encryption and decryption chip card, each operation of a user can be authenticated when the user is authenticated, and the memory module can be used as a system boot disk through partition of the areas of the memory module.

Description

technical field [0001] The application relates to the field of computer information security, in particular to a bridge encryption and decryption chip card. Background technique [0002] With the rapid development of information technology, computing equipment has penetrated into all walks of life. While bringing convenience to people's lives, hackers and virus attacks have become the biggest threat to information security. How to ensure the security of personal data has become an urgent problem to be solved. [0003] At present, the most common way to protect personal information is to use password protection, but due to problems such as password loss and easy cracking, it is only suitable for information protection with a lower security level. Another way is to use a hard disk encryption card to hard-encrypt the data in the storage device, but this method has the following problems: one, because the entire storage device is hard-encrypted, the storage device cannot be used...

AI Technical Summary

Problems solved by technology

[0003] At present, the most common way to protect personal information is to use password protection, but due to problems such as password loss and easy cracking, it is only suitable for information protection with a lower security level.

Another way is to use a hard disk encryption card to hard-encrypt the data in the storage device, but this method has the following problems: one, because the entire storage device is hard-encrypted, the storage device cannot be used as a system boot disk; Only authenticate the legitimacy of the user, once the user password is cracked or the certified USB Key is obtained, the contents of the entire hard disk can be cracked

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