Secure receiving and transmitting system and method for email

Abstract

The invention relates to the field of secure email receiving and transmitting technologies, and discloses a secure receiving and transmitting system and a secure receiving and transmitting method for an email. The system comprises a digital certificate acquisition module, a sender client module and a receiver client module, wherein the digital certificate acquisition module is used for acquiring a digital certificate of a receiver according to an email address of the receiver; the sender client module is used for encrypting the email by using the digital certificate of the receiver, and sending the encrypted email; and the receiver client module is used for receiving the email, decrypting the email by using a secret key of the receiver and displaying the decrypted email. According to the system and the method provided by the invention, the digital certificate of the receiver is automatically acquired, so that the corresponding digital certificate is automatically searched for encryption and decryption, security protection of email data is automatically performed, the email data in local, network transmission and email servers are all strictly protected in an encrypted manner, and thus behaviors of forging or modifying the email under the name of the receiver can be well completely eradicated.

Description

technical field [0001] The present invention relates to the technology of secure sending and receiving of emails, in particular to a system and method for sending and receiving secure emails. Background technique [0002] With the development of social informatization, the application of e-mail has become an indispensable part of daily life, especially in the fields of business and government affairs, which will involve a large amount of confidential data. However, there are many security problems in the traditional e-mail system, such as identity forgery, data leakage, behavior repudiation and so on. Moreover, the traditional e-mail system has weak security protection, so it is very vulnerable to attacks, and the leakage or forgery of confidential information will bring huge losses. [0003] At present, mail clients such as OUTLOOK and FOXMAIL all support security solutions based on the S / MIME protocol. This scheme also signs and encrypts emails based on digital certifica...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a system and method for securely sending and receiving e-mails, which is used to solve the problem of automatically searching for corresponding digital certificates for encryption and decryption when sending and receiving e-mails

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