In cryptography, the ... digital certificate, or the certificate of the public key document, E is a digital signature to it can take up a public key to an identity, like the name of the person or organization and the address and information of the hands, relative.

typically, in a plan the public key infrastructure (PKI), the signature on behalf of reference, issuance of digital certificate, Certificate authority, or CA). In a grid layout of the Trust, signed or on behalf of its user or users. In any case, signatures on a certificate from the sides, a signature is official and certified, this is the profile identity and the public key corresponding to.