E-mail data security protection method based on hybrid encryption

Abstract

The invention relates to a hybrid encryption-based email data security protection method. Existing data encryption methods either have relatively low confidentiality, or have relatively large memory resources. The present invention includes a data encryption method for electronic mail communication between terminals and a data encryption method for communication between a terminal and a server. The server generates a pair of public and private keys for asymmetric encryption, and sends the server public key to the client for storage; the client generates a pair of public and private keys for asymmetric encryption, and uploads the client public key to On the server side; the server sets up the client public key library, and saves each client public key and the registration ID as the identification in the client public key library; the client sets the key stream generator, and generates a symmetric key by setting the number of registers. key. The invention combines symmetric encryption and asymmetric encryption methods, integrates the advantages of high speed of symmetric encryption mechanism and higher security of asymmetric encryption, occupies less resources and has high confidentiality.

Description

Technical field [0001] The present invention belongs to the field of information and communication technology, specifically the field of information security, relates to a method of protecting e-mail data based on hybrid encryption. Background [0002] With the development of network technology, the function of the network is becoming more and more powerful, and the field of network application involves all aspects of people's work, study and life. In terms of network communication, e-mail has been widely used with its real-time convenience characteristics, and the forms of information applied are also diverse. As the use of e-mail is getting larger and more extensive, its security is also being more threatened and challenged. Including the network attacks of criminals caused by information leakage and malicious tampering with the authenticity of information, etc., causing a lot of privacy and indirect property losses to network users. [0003] Modern data encryption methods mai...

AI Technical Summary

Problems solved by technology

Including cyber attacks by criminals causing information leakage and malicious tampering and destroying the authenticity of information, etc., causing a lot of privacy and indirect property losses to network users

[0003] Modern data encryption methods mainly include symmetric encryption and asymmetric encryption. The former has fast encryption speed but relatively low confidentiality, while the latter has higher security but consumes more time and memory resources for encryption.

However, existing e-mail encryption methods seldom involve the verification of information integrity.