What is user certificate authentication?
Hereof, how does client certificate authentication work?
In server certificates, the client (browser) verifies the identity of the server. In client authentication, a server (website) makes a client generate a keypair for authentication purpose. The private key, the heart of an SSL certificate, is kept with the client instead of the server. It's stored in the browser.
Subsequently, question is, why do we use authentication certificates? Certificates replace the authentication portion of the interaction between the client and the server. Instead of requiring a user to send passwords across the network continually, single sign-on requires the user to enter the private-key database password once, without sending it across the network.
Furthermore, what is a certificate authentication?
A certificate-based authentication scheme is a scheme that uses a public key cryptography and digital certificate to authenticate a user. The server then confirms the validity of the digital signature and if the certificate has been issued by a trusted certificate authority or not.
How do you verify a client certificate?
- The client has to prove that it is the proper owner of the client certificate.
- The certificate has to be validated against its signing authority This is accomplished by verifying the signature on the certificate with the signing authority's public key.