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Method for associating and verifying multiple digital certificates

A technology of digital certificates and verification methods, applied in the field of association and verification of multiple digital certificates, can solve problems such as not showing correlation, and achieve the effects of avoiding untimely information updates, reducing costs, and simplifying complexity

Active Publication Date: 2012-11-28
江苏先安科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, certificate B belongs to certificate A in terms of scope of use and authority, and B is only valid when A is valid. However, the current certificate system does not reflect such relevance for similar situations.

Method used

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  • Method for associating and verifying multiple digital certificates
  • Method for associating and verifying multiple digital certificates
  • Method for associating and verifying multiple digital certificates

Examples

Experimental program
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Embodiment Construction

[0027] The present invention will be further elaborated below in conjunction with the accompanying drawings and specific embodiments.

[0028] figure 1 It is a flow diagram of the secondary certificate issuance process. A method for associating multiple digital certificates, using one or more digital certificates as the primary certificate, through the primary certificate, digitally signing the specific information in the secondary certificate issuance request to obtain the unique identifier of the primary certificate, and by The issuing authority (CA) of the secondary certificate will include the unique identifier of the primary certificate as a part of the content of the secondary certificate, and include it in the secondary certificate after issuance. So far, the primary and secondary certificates have established mutual associations through the unique identification (signature) of the primary certificate.

[0029] figure 2 It is a comparison diagram of the existing cer...

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Abstract

The invention discloses a method for associating and verifying multiple digital certificates. The method comprises the following steps of: taking one or more digital certificates as a primary certificate, performing digital signature and other operations on specified information in a signature request of a secondary certificate through the primary certificate, acquiring an identifier special for the primary certificate, taking the identifier special for the primary certificate as a component of the content of the secondary certificate through a certificate authority (CA) of the secondary certificate, wherein the component is contained in the signed secondary certificate. During verification, the identifier special for the primary certificate in the secondary certificate is extracted, and the validity of the special identifier is verified through a signature verification method and the like, so that the association validity is obtained. Because the identifier special for the primary certificate is contained in the secondary certificate, a comparison table of the primary certificate and the secondary certificate is not required to be established in an application system, the identifier can be directly obtained from the secondary certificate, the complexity of the application system is simplified, the management and maintenance cost of the application system is reduced, and the error of the comparison table caused by untimely information update can be avoided.

Description

technical field [0001] The present invention relates to the creation of one or more associated digital certificates (called secondary certificates) from one or more digital certificates (called primary certificates), and the verification of the validity of such associations. It is used to solve the problem that units or individuals who currently hold legal and valid digital certificates can create or obtain new associated digital certificates on the basis of existing valid certificates for use in other businesses and application systems. Background technique [0002] A digital certificate is an online identification that proves a user's identity. It identifies the identities of all communication parties in the network, that is, solves the problem of "who am I" in the virtual society. In layman's terms, a digital certificate is like the ID card of an online user, which can ensure that your transactions on the Internet are safe and credible. [0003] Digital certificates main...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L9/32H04L29/06
Inventor 庄昱垚陈鹏董必成
Owner 江苏先安科技有限公司
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