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Light weight certificate suitable for encryption communication of circuit domain and encryption communication method

An encrypted communication and circuit domain technology, applied in the field of lightweight certificate generation and use, can solve the problems of incomplete delay, small encryption and identity authentication, and achieve the effects of protecting security, reducing delay, and improving user experience

Inactive Publication Date: 2016-07-13
INST OF INFORMATION ENG CAS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The current encryption algorithm is generally introduced at the IP layer or above the IP layer. In the circuit domain, it is impossible to complete encryption and identity authentication that is relatively safe and has a small delay.

Method used

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  • Light weight certificate suitable for encryption communication of circuit domain and encryption communication method

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Embodiment Construction

[0029] The present invention will be further described below through specific embodiments and accompanying drawings.

[0030] The invention proposes a lightweight certificate for encrypted communication in the circuit domain, and related generating and using methods. The lightweight certificate is compatible with the standard X.509 certificate, and it is guaranteed to have no impact on CA (CertificationAuthority, digital certification authority) and related certificate specifications.

[0031] 1. Extensions for X.509 certificates

[0032] X.509 certificate is a common signature certificate format. The certificates are in line with the ITU-TX.509 international standard. Certificates in the X.509 format are widely used for signing e-mail messages, authenticating program code, and authenticating many other types of data, among other things.

[0033] The present invention first expands the standard X.509 certificate as follows: a new extension item conforming to the X.509 certi...

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Abstract

The invention relates to a light weight certificate suitable for encryption communication of a circuit domain and a method utilizing the certificate for encryption communication. According to the invention, a standard X.509 certificate is expanded and a circuit domain encryption communication special expansion item meeting X.509 certificate expansion item standard is added. The expansion item includes a signature given by a current CA for content including a telephone number of the certificate and a public key of the certificate and a signature algorithm used when the CA performs signing. Then, the special light weight certificate used for circuit domain encryption communication is obtained based on the expanded X.509 certificate. The special light weight certificate includes fields such as version, algorithm clan, sequential number, public key and circuit domain encryption communication special signature. Then the special light weight certificate is adopted for realizing circuit domain encryption communication. According to the invention, time delay of communication caused by the encryption function is reduced, communication and data exchange safety in mobile communication is protected and user experience is improved.

Description

technical field [0001] The invention relates to the technical field of network communication security, in particular to a method for generating and using a lightweight certificate in encrypted communication in the circuit domain. Background technique [0002] The rapid development and wide application of mobile communication technology have brought great convenience to people's life, but also brought many security risks. Due to the openness of the wireless channel, as long as the corresponding receiving equipment is used, the call information of the mobile phone can be intercepted, and it can be located, tracked and monitored. In some special occasions (such as confidential meeting rooms), in order to prevent leakage of mobile phone communication, it is not desirable to have mobile phone communication. [0003] Encrypting call information is a commonly used method, mainly including methods such as prefabricated keys or dynamic key negotiation. In the method of dynamic key ...

Claims

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Application Information

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IPC IPC(8): H04L9/32H04L29/06
Inventor 周卫华顾小卓朱大立
Owner INST OF INFORMATION ENG CAS