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Public Key Certificate

In cryptography, a public key certificate (also known as a digital certificate or identity certificate) is an electronic document that uses a digital signature to bind a public key with an identity — information such as the name of a person or an organization, their address, and so forth. the certificate can be used to verify that a public key belongs to an individual. in a typical public key infrastructure (pki) scheme, the signature will be of a certificate authority (ca).