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A method and device for updating crl

An incremental and serial number technology, applied in the field of updating the certificate revocation list, can solve the problems that the CRL cannot be kept consistent, the user cannot update the CRL in time, and the user cannot know the time to update the CRL, etc.

Active Publication Date: 2019-12-06
BEIJING LEADSEC TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] After the CA releases the CRL, the user can download the released CRL from the server where the CA issued the CRL. Since the CA will continue to issue new CRLs, and the user cannot know when the server that issued the CRL updates the CRL, the user cannot update their own CRL in time. , so that the CRL in the server issuing the CRL and the CRL obtained by the user cannot be consistent

Method used

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  • A method and device for updating crl
  • A method and device for updating crl

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Embodiment Construction

[0049] In order to facilitate the understanding of those skilled in the art, the present invention will be further described below in conjunction with the accompanying drawings, which cannot be used to limit the protection scope of the present invention. It should be noted that, in the case of no conflict, the embodiments in the present application and various manners in the embodiments can be combined with each other.

[0050] see figure 1 , the present invention proposes a method for updating CRL, comprising:

[0051] Step 100, obtain the base CRL corresponding to each CA respectively. Specifically include:

[0052] The base CRL corresponding to each CA is respectively downloaded from the server corresponding to the pre-set address corresponding to each CA.

[0053] Wherein, the address corresponding to each CA may be a Lightweight Directory Access Protocol (LDAP, Lightweight Directory Access Protocol) server address, or a Hypertext Transfer Protocol (HTTP, Hypertext Tran...

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Abstract

The invention discloses a method and device for updating a certificate revocation list (CRL). The method comprises the following steps: separately obtaining a base CRL corresponding to each certificate authority (CA); and separately obtaining an increment CRL corresponding to each CA, and obtaining a complete CRL according to the obtained base CRL and increment CRL. According to the scheme of the invention, the base CRL and increment CRL corresponding to each CA are spontaneously obtained, and the complete CRL is obtained based on the obtained base CRL and increment CRL, and thus the own CRL can be timely updated, and the CRL in the server that issues the CRL and the CRL obtained by the user can keep consistent.

Description

technical field [0001] The invention relates to digital certificate technology, in particular to a method and device for updating a certificate revocation list (CRL, Certification Revocation List). Background technique [0002] A digital certificate is an authoritative electronic document that provides a way to verify identity on the Internet (Internet), and its function is similar to a driver's license or an ID card in daily life. Digital certificates are issued by an authoritative organization - Digital Certificate Authority (CA, Certificate Authority), and people can use digital certificates to identify each other's identities in Internet communication. Of course, in the process of digital certificate authentication, the role of CA as an authoritative, impartial, and reliable third party is crucial. [0003] Digital certificates have a specified lifespan, but CAs can shorten this lifespan through a process called certificate revocation. The CA lists the serial numbers o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L9/32
CPCH04L9/3268
Inventor 任洪军孟庆森李校慧
Owner BEIJING LEADSEC TECH