In this type of cryptography, a key pair - Private and Public Key is used. The Private Key is kept secret and the Public Key is widely distributed. Each key is used to validate operations performed by [..]

The presentation of a credential by a user to a system in order that the users identity may be established so as to determine whether the user is able to access the system.

The action of determining once a user has authenticated to a system what aspects or parts of the system the user is actually allowed to use.

A Hash Function is a transformation that takes an input and returns a fixed-size string, which is called the hash value (sometimes termed a message digest, a digital fingerprint, a digest or a checksu [..]

The Issuing Authority is responsible for determining who can be issued with a certificate bearing the Issuing Authority’s name. The Issuing Authority is named within all certificates which are issued. [..]

Similar to a Message Digest (Hash/Fingerprint), except the Shared Secret Key is used in the process of calculating the Hash. Since a shared secret key is used, an attacker cannot change the Message Di [..]

A service which can be used to ascertain the status of a single certificate. Its main benefit is speed of response to the system requesting the status. OCSP provides one of three responses to the requ [..]

The Private Key is the Key in Asymmetric Cryptography that is kept secret by the owner (End-Entity/Subscriber). The ‘private key’ can be used for authentication and digital signing purposes.