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Does HTTPS require client certificate?
HTTPS Client Authentication requires the client to possess a Public Key Certificate (PKC). If you specify client authentication, the web server will authenticate the client using the client’s public key certificate.
Do I need a client certificate?
The client does not need to have certificates, but it’s good practice to verify who the server says they are, and that means the client needs CA certificates to verify the certificate chain presented by the server. It is possible to configure the server to ask for a client authentication certificate.
Does the client need a certificate for TLS?
So, for a client to authenticate, it involves a client certificate. In two-way TLS authentication, aka TLS with client certificate authentication, client certificate is also involved in addition to the server certificate for hardening the authentication process.
Do you need a certificate to use HTTPS?
Generally, most web servers running HTTPS do not require the client to have a certificate. If the server requires the client to authenticate, this is often done through credentials (e.g. username and password).
How does a client authenticate a SSL certificate?
Properly logged (CT logs). When a client SSL certificate is present, though, both sides perform the authentication steps. When the server presents its certificate, the client responds with its own. Then, both the client and server authenticate the certificate before the handshake can conclude.
Can you use SSL without a server side certificate?
SSL/TLS can also be used without certificates at all, i.e. not even at the server side. In this case authentication is done with other methods, like a secret key pre-shared between client and server (PSK). These methods are rarely used and browsers don’t support these.
Can a HTTPS server be configured without a server?
Existing browsers support that. When the server presents a certificate, however bogus, it is then allowed to ask, in return, for a client certificate, yielding the kind of authentication that you are looking for. And Web browsers do support client certificates for SSL.