Method for protecting safety of trusted certificate
A certificate and security technology, which is applied to the public key of secure communication, user identity/authority verification, etc., can solve the problems of the verifier being wrongly trusted, using incorrect trusted certificates, and changes that cannot be detected by technical means, so as to prevent The effect of digital certificate verification
Active Publication Date: 2009-09-16
AEROSPACE INFORMATION
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Changes to these certificates are also not detectable by technical means
[0012] Any of the above situations will cause the verifier to use an incorrect trusted certificate in the trusted verification of the digital certificate, so that the digital certificate that should have passed the verification will not pass the verification, and the digital certificate that should have failed the verification will pass the verification, and finally the verifier will wrong trust
And all of this happened without the verifier's knowledge. As a non-technical verifier, it is difficult to find the existence of this kind of error.
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[0038] The above and other technical features and advantages of the present invention will be described in more detail below in conjunction with the accompanying drawings.
[0039] Aiming at the security problems of trusted certificates in the current application of digital certificates, the present invention uses digital signature technology to provide a protection method to ensure that trusted certificates are not replaced during downloading, transmission and storage, and prevent users from The wrong trusted certificate is used as the basis for authentication. The first is the establishment of self-trust, that is, when a user chooses a CA center to apply for a certificate, the CA center will first review the authenticity of the user's identity, and the user who passes the review will get a digital certificate authorized by the CA center, as well as the digital certificate used in the digital certificate. The private key corresponding to the public key is stored in the certif...
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The invention discloses a method for protecting the safety of a trusted certificate, which comprises the following steps: a user applies for a digital certificate; the trusted certificate of a CA center is signed by a private key of the user under the supervision of the CA center; when using the trusted certificate, the user can sign with a public key to check the correctness of the trusted certificate. The private key is used for signing the trusted certificate of the CA center, and the trusted certificate and the signature are stored for the user to use. The trusted certificate can be the combination of the random codes and formats of X. 509 certificates. When using the trusted certificate, the user uses the public key to check the signature of the trusted certificate so as to protect the safety of the trusted certificate.
Description
technical field [0001] The invention relates to a digital certificate security authentication method, in particular to a method for protecting the security of trusted certificates. Background technique [0002] With the increasing popularity of network applications, the country legally recognizes digital signature technology, and the country recognizes and supports digital certificates based on PKI (Public Key Infrastructure) technology, based on digital certificate application technology The network identity authentication, digital signature, and verification signature have been widely used in systems such as e-commerce, e-government, online banking, and online office. Practice has also proved that the network information security technology based on digital certificates is currently the most feasible and effective technology. However, in the actual application of digital certificates, there are still some unsound usage methods that threaten the security of digital certifi...
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IPC IPC(8): H04L9/32H04L9/30
Inventor 宁红宙华刚
Owner AEROSPACE INFORMATION