In cryptography, a client certificate is a type of digital certificate that is used by client systems to set up a secure connection to a remote server. Certificates contain information about the client and are signed by a certificate authority. Client certificates can provide mutual authentication without the use of passwords. The Transport Layer Security protocol can optionally exchange and verify client certificates when setting up a connection. This can consequently be used to authenticate to websites and wireless networks.
See also Client-authenticated TLS handshake
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