What is a ca digital certificate?

What is a ca digital certificate

A CA digital certificate is a certificate issued by the CA center’s authoritative signature certification . Digital certificates are ID cards in the online world. A safe and reliable trust relationship can be established for users who do not meet each other in the online world. The establishment of this trust relationship originates from the PKI/CA certification center. It is crucial to build a secure PKI/CA certification center.

Processing

To obtain a certificate, you should first apply to the CA. After the CA determines the identity of the applicant, it allocates a public key, and the CA binds the public key to the applicant's identity information and signs it to form a certificate and issue it to the applicant. To identify the authenticity of a certificate, use the CA's public key to verify the signature on that certificate. Once the verification is passed, the certificate is considered valid.

Function

Digital certificate provides electronic authentication for secure communication between both parties. Digital certificates are used to achieve identification and encryption of electronic information on the Internet, company intranet, or extranet. The digital certificate contains the identification information of the owner of the key pair (public key and private key), and the identity of the certificate holder is authenticated by verifying the authenticity of the identification information.

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