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E-mail encryption method and system

An email and public key encryption technology, which is applied in the field of communication security, can solve problems such as endangering the security of user email information and leakage of certificate private keys

Inactive Publication Date: 2017-04-26
WOSIGN CA LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When a device (especially a mobile device) is stolen or the system is cracked, it is very easy to leak the private key of the certificate and endanger the security of user email information

Method used

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  • E-mail encryption method and system
  • E-mail encryption method and system
  • E-mail encryption method and system

Examples

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Embodiment Construction

[0059] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0060] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relationship between the components in a certain posture (as shown in the accompanying drawings). Relative positional relationship, movement conditions, etc., if the specific posture changes, the directional indication will also change accordingly.

[0061]In the present inv...

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PUM

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Abstract

The invention discloses an E-mail encryption method and system; the method comprises the following steps: storing public keys of a plurality of E-mail client end key pairs in a third party certificate server end; logging on the E-mail client end, requesting to send an e-mail to at least one e-mail client end receiving the e-mail, and requesting to the third party certificate server end to obtain the public key of the e-mail client end receiving the e-mail; determining whether the third party certificate server end has the public key of the e-mail client end receiving the e-mail or not; if yes, allowing the e-mail client end sending the e-mail to obtain the public key, and the e-mail client end sending the e-mail can use the public key to encrypt the sending e-mail, thus finishing sending the e-mail. The E-mail encryption method and system can provide more E-mail usage convenience and high safety.

Description

technical field [0001] The invention relates to the technical field of communication security, in particular to an email encryption method and system. Background technique [0002] At present, e-mail has been widely used. Since e-mail is transmitted in clear text on the Internet, the security of personal privacy information and commercial confidential information cannot be guaranteed. Therefore, e-mail encryption technology is used to solve the problem, among which are widely used: S / MIME and OpenPGP, the email client software supporting S / MIME includes Microsoft Outlook, Mozilla's Thunderbird and Apple's iPhone email client software, and the email client software supporting OpenPGP includes PGP Desktop Email. It is summarized that the former certificate used for email encryption is issued by a third-party CA, while the latter certificate is issued by itself. [0003] The premise of the above two email encryption technologies is that the sender must have the recipient's pub...

Claims

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Application Information

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IPC IPC(8): H04L29/06H04L9/08H04L9/32H04L12/58
CPCH04L9/083H04L9/085H04L9/3268H04L63/0428H04L63/062H04L63/08H04L51/42
Inventor 王高华余鹏袁剑波钟安龙余凌峰张文俊
Owner WOSIGN CA LTD