File encryption system based on third party key management

Abstract

The invention discloses a file encryption system based on third party key management, which relates to the technical field of information security. The file encryption system comprises a key manager used for managing keys, a client used for file encryption / decryption and synchronization, and a cloud server used for storing and backing up encrypted files. The client and the cloud server carry out information interaction through the Ethernet. The client encrypts / decrypts files, and transmits the files to the cloud server for storage and backup. According to the invention, keys are managed by theindependent third party key manager, an encrypted file can be opened only when the key is obtained, and it is ensured that only the user himself or herself can see the file being decrypted and opened. Moreover, the file is encrypted / decrypted and synchronized to the cloud server by the client. The problem on how to encrypt a file securely is well solved. A key is updated by a key update module after the key is verified by a key verification module, and therefore, the risk of key cracking is reduced.

Description

technical field [0001] The invention belongs to the technical field of information security, in particular to a file encryption system based on third-party key management. Background technique [0002] Information security mainly includes the following five aspects, that is, the need to ensure the confidentiality, authenticity, integrity, unauthorized copying of information and the security of the parasitic system. Information security itself covers a wide range, including how to prevent the leakage of commercial enterprise secrets, prevent teenagers from browsing bad information, and the leakage of personal information. The information security system in the network environment is the key to ensuring information security, including computer security operating systems, various security protocols, security mechanisms (digital signatures, message authentication, data encryption, etc.), and security systems, such as UniNAC, DLP, etc., as long as A security breach can threaten ...

AI Technical Summary

Problems solved by technology

[0003] Enterprise information security is very important to enterprises. Information is usually encrypted by keys, but keys are usually cracked and may be stolen by others; now a file encryption system based on third-party key management is proposed, Manage the key through an independent third-party key management terminal to ensure that the encrypted file can only be opened by the user, and update the key through the key update module, reducing the risk of the key being cracked

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