1. [Any] Security measure designed to establish the validity of a transmission, message, or originator, or a means of verifying an individual's authorization to receive specific categories of information.
2. A security measure designed to protect a communications system against acceptance of a fraudulent transmission or simulation by establishing the validity of a transmission, message, or originator.
3. Evidence by… (Read More →)

An encryption process or tool in which the results of text encryption depend on all relevant authentication elements. [After X9.24]

An authority recognized in a security domain as a source of certified identities. (See also Subject Authority) [ECMA138].

Authentication information in the form of a security certificate which may be used to assure the identity of an entity guaranteed by an authentication authority [10181-2].

A contiguous group of characters or bits that are corruption-protected by being processed by the authentication algorithm. [After X9.24]

1. A mechanism intended to ensure the identity of an entity by means of an information exchange. [2382-pt.8]
2. A mechanism intended to ensure the identity of an entity by means of information exchange [7498-2].
3. A sequence of one or more transfers of exchange authentication information (AI) for the purposes of performing an authentication[10181-2].

1. Information used to establish the validity of a claimed identity of an entity. [2382-pt.8]
2. Information used to establish the validity of a claimed identity [7498-2].

The entity which starts an authentication exchange [10181-2].

A (data-encryption algorithm) key used to authenticate data in accordance with specific encryption standards. [After X9.26]

A set of rules, part of an access control policy, by which credentials are matched against claims of identity [ECMATR46].