Encryption communication method and device based on SM9 algorithm

A technology for encrypted communication and encrypted information, applied in the field of information security, can solve problems such as the inability to guarantee communication security and the inability to realize verification, and achieve the effect of simple operation process

Inactive Publication Date: 2018-02-09
Fisherman Information Technology Co Ltd
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

Since the device cannot maintain a network connection with the third-party certificate authority in many cases, verification cannot be achieved in many scenarios, and communication security cannot be guaranteed.

Method used

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  • Encryption communication method and device based on SM9 algorithm
  • Encryption communication method and device based on SM9 algorithm
  • Encryption communication method and device based on SM9 algorithm

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Embodiment Construction

[0045] Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the present disclosure. Rather, they are merely examples of devices consistent with aspects of the present disclosure as recited in the appended claims.

[0046]The terms "first", "second" and the like in the description and claims of the present invention and the drawings are used to distinguish different objects, rather than to describe a specific order. Furthermore, the terms "include" and "have", as well as any variations thereof, are intended to cover a non-exclusive inclusion. For example, a process, method, system, product or device comprising a...

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Abstract

The invention provides an encrypted communication method and device based on the SM9 algorithm. The method includes: the first user equipment uses the identification information of the second user equipment as the SM9 public key, and uses the SM9 algorithm to encrypt the first encryption key to obtain an encrypted first encryption key; the first encryption key is an encryption key of a preset first encryption algorithm; the first user equipment uses the first encryption algorithm to encrypt information to be sent according to the encrypted first encryption key to obtain encrypted information; the The first user equipment sends the encrypted information and the encrypted first encryption key to the second user equipment. The embodiment of the present invention realizes the safe communication between multiple user equipments and the function of safe group sending of messages.

Description

technical field [0001] The invention relates to the technical field of information security, in particular to an encrypted communication method and device based on the SM9 algorithm. Background technique [0002] With the continuous progress of global information technology, the level of social information application in our country has also developed by leaps and bounds. Electronic products emerge in endlessly, which greatly facilitate people's work and life. However, with the substantial increase in the penetration rate of electronic products, its security and confidentiality issues have become increasingly prominent. When users communicate through electronic products, the communication is easily intercepted and obtained by illegal elements. [0003] Nowadays, digital certificates are generally used to achieve security and confidentiality, that is, to use the key of the certification authority to protect data. A digital certificate is a file that is digitally signed by ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L9/08H04L9/30H04L29/06
CPCH04L9/0822H04L9/30H04L63/0428
Inventor 宋志华徐波
Owner Fisherman Information Technology Co Ltd
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