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Method for protection of digital certificate extension information

A digital certificate and information protection technology, applied in the field of digital certificate extension information protection, can solve the problems of strengthening digital certificate extension information security, exposure, etc.

Active Publication Date: 2011-11-16
THE THIRD RES INST OF MIN OF PUBLIC SECURITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to provide a digital certificate extension item information protection method to solve the problem of exposing unnecessary extension item information in the digital certificate during the use of existing digital certificates, and to strengthen the security of digital certificate extension item information

Method used

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  • Method for protection of digital certificate extension information
  • Method for protection of digital certificate extension information
  • Method for protection of digital certificate extension information

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Experimental program
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Embodiment

[0025] The digital certificate extension item information protection method of the present invention comprises the following steps:

[0026] (1) The certification center classifies the content of the extension item information in the digital certificate, and sets an identifier for each category;

[0027] (2) The key management center generates a corresponding key pair for each type of identifier of the certification center;

[0028] (3) The certification center receives the digital certificate application information from the registration center and extracts the extension item information in the digital certificate information;

[0029] (4) Using the corresponding key pair of the key management center to encrypt separately according to the identifiers of each category of the extension item information;

[0030] (5) The digital certificate application information and the encrypted extension information are used to generate a digital certificate, and the digital certificate is ...

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Abstract

The invention aims to disclose a method for protection of digital certificate extension information. In the method, information of different types in digital certificate extension information is respectively encrypted by a key management center, keys for encryption are under unified management of the key management center, and when the user needs information of a specific type in a digital certificate, a specific key card is required to read the information, thereby preventing abuse of personal information, solving the problem of exposure of unnecessary extension information in the digital certificate during the use of the digital certificate, enhancing the security of the digital certificate extension information, and achieving the purposes of the invention.

Description

technical field [0001] The patent of the present invention relates to an information protection method in the field of computer information security, in particular to a digital certificate extension item information protection method suitable for protecting information contained in digital certificate extension items in a PKI system. Background technique [0002] With the development of large-scale networks, data involves LAN, WAN, Internet, etc., and data security issues are becoming more and more prominent. Data security, confidentiality, authenticity, and integrity have become the focus of attention. [0003] In order to solve the problem of network data security, countries all over the world have launched the research and application of public key infrastructure based on public key encryption technology. PKI technology uses certificates to manage public keys, and binds the user's public key with other identification information (such as name, Email, etc.) through a thir...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L9/32
Inventor 金波胡永涛姚静晶邹翔王佳倪力舜朱政洪侯强刘旻斐高峰柯耀宏
Owner THE THIRD RES INST OF MIN OF PUBLIC SECURITY