Ca-certificate
时间: 2023-10-10 16:07:13 浏览: 61
A CA certificate, or a certificate authority certificate, is the root certificate that belongs to a certificate authority (CA). This certificate is used to verify the digital identity of an entity, such as a website or an organization, and it is trusted by web browsers and other software applications.
When a website or organization wants to obtain an SSL/TLS certificate, they need to go through a validation process with a CA. The CA verifies the identity of the entity, and if everything checks out, issues an SSL/TLS certificate to them. This certificate contains the domain name or organization name, the public key, and the digital signature of the CA.
Web browsers and other software applications trust the CA certificate because it has been digitally signed by the CA, and they use it to verify the SSL/TLS certificates issued by the same CA. If a website's SSL/TLS certificate is not issued by a trusted CA, web browsers will show a warning message to the user.