Digital Certificates are normally allocated by a trusted body known as a CA (Certification Authority). When a party or entity is allocated a certificate it is described as certificate enrolment. This process involves the party requesting a certificate, providing the CA with a copy of its public key and additional identity information. This information in turn is signed by the CA. This involves the CA encrypting this information with its private key. The certificate is returned to the requesting party, which has now been enrolled.