[A] sequence of symbols (or their electrical or mechanical equivalents) produced in a machine or auto-manual cryptosystem to combine with plain text to produce cipher text, control transmission security processes, or produce key. [INFOSEC-99]

Identification information associated with certain types of electronic key. [INFOSEC-99]

Punched or magnetic tape containing key. Printed key in tape form is referred to as a key list. [INFOSEC-99]

In a local environment, terminals and equipment that provide immediate access from all terminals to a variety of telephone services without attendant assistance.
Note: A KTS may interface with the public switched telephone network.

The means by which a cryptographic key is passed from its origination point to its point(s) of actual use, whether by bonded courier, registered mail, over-the-air-rekeying (OTAR), or a number of other protected methods.
Note: As a result of key transport, all rightful participants share a common secret key in such a way that the secret key is determined entirely… (Read More →)

A characteristic of a key that distinguishes it as either a key-encrypting key or a data key. [After X9.17]

Irreversible cryptographic process for modifying key. [INFOSEC-99]

An identifier that specifies cryptographic services, modes, and key values in which the associated key may be used. [After X9.69]

In public key infrastructure (PKI) systems, the procedure allowing the receiver of a public key to verify that it conforms with the requirements for such a key; this procedure is used to counter certain types of attacks against the security of the PKI system. Synonym public key validation. [After X9.42]

Deprecated synonym for key.