E-mail encryption method, mail server and system

Abstract

The invention discloses an E-mail encryption method which comprises the steps that mail information sent by a terminal is acquired, and the mail information comprises a receiver, an object, a text and an attachment; whether an encryption password is comprised in the mail information is judged, when the judgment is confirmed, an E-mail is encrypted according to the mail information, the encrypted E-mail comprises a mail head, a template text, an encrypted text and an encrypted attachment, and the mail head further comprises encryption identification corresponding to the E-mail. The invention further discloses a mail server and an E-mail encryption system. By adoption of the E-mail encryption method, the mail server and the E-mail encryption system, a standard format of an E-mail is expanded, each E-mail can have an independent encryption password, and safety of E-mail data is greatly improved. Simultaneously, because the whole encryption data are placed in an original text of an E-mail, the E-mail can be independently downloaded and decrypted. In addition, the E-mail is encrypted by utilizing an Rijndael encryption method, and entity data of each E-mail are effectively ensured.

Description

technical field [0001] The invention relates to the field of communication security, in particular to an email encryption method, server and system. Background technique [0002] Nowadays, with the development and popularization of the network, e-mail has become an important communication tool, and its security has been paid more and more attention. [0003] Emails must contain additional service information in addition to information passed from one user to another. The mail server uses this information to deliver the mail, and the client's mail receiving software uses this information to classify the mail. [0004] At present, the disadvantage of the mail server is that the protection method for mail security is relatively single, and the security of all mails is mainly managed through the login password of the mailbox, and the content of the mail is basically stored in plain text or simply encoded with Base64, etc., and depends on the user A password or other single aut...

AI Technical Summary

Problems solved by technology

[0004] At present, the disadvantage of the mail server is that the protection method for mail security is relatively single, and the security of all mails is mainly managed through the login password of the mailbox, and the content of the mail is basically stored in plain text or simply encoded with Base64, etc., and depends on the user A password or other single authentication method is used to determine whether the user has the right to view the content of the email. If there is a problem with the authentication or the mail server is modified, the data of all the user's emails will be completely exposed, which seriously threatens the security of the user's email

At the same time, once the address of the mail server is disclosed, it is easy to become the target of hackers, which increases the probability of server data being stolen

For example, when the user selects the remember password function of the browser, as long as the user's computer password is stolen, the user can freely log in to the user's mailbox, and the security of the email in the user's mailbox cannot be guaranteed.

[0005] According to conventional thinking, the mail server often adopts the method of accessing all the data of the user in the system once the authentication is passed, but many users lack sufficient awareness of security protection, the password set is too simple, and often the mailbox password is stolen situation, resulting in email data can also be easily stolen

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