[A] device or electronic key used to unlock the secure mode of crypto-equipment. [INFOSEC-99]

A complete system of crypto-communications between two or more holders. The basic unit for naval cryptographic communication. A cryptochannel is analogous to a radio circuit. It includes:
(a) The cryptographic aids prescribed.
(b) The holders thereof.
(c) The indicators or other means of identification.
(d) The area or areas in which effective.
(e)The special purpose, if any, for which provided.… (Read More →)

1. [The] art or science concerning the principles, means, and methods for rendering plain information unintelligible, and for restoring encrypted information to intelligible form. [INFOSEC-99]
2. The branch of cryptology that treats of the principles, means, and methods of designing and using cryptosystems.
3. The discipline which embodies principles, means, and the methods for the transformation of data in order… (Read More →)

Information which is derived by performing a cryptographic transformation (see cryptography) on a data unit [7498-2].
Note: The derivation of the check value may be performed in one or more steps and is a result of a mathematical function of the key and data unit. It is usually used to check the integrity of a data unit.

Hardware or firmware embodiment of the cryptographic logic. A cryptographic component may be a modular assembly, a printed wiring assembly, a microcircuit, or a combination of these items. [INFOSEC-99]

Any device that embodies cryptographic logic or performs one or more cryptographic functions (e.g., key generation, encryption, and authentication).

A mathematical function that maps values from a large (or even very large) domain into a smaller range, and is (a) one-way in that it is computationally infeasible to find any input which maps to any pre-specified output; and (b) collision-free in that it is computationally infeasible to find any two distinct inputs which map to the same output. [After… (Read More →)

Seecryptographic hash.

All information significantly descriptive of cryptographic techniques and processes or of cryptographic systems and equipment, or their functions and capabilities, and all cryptomaterial. [JP 1-02]

[A] function used to set the state of a cryptographic logic prior to key generation, encryption, or other operating mode. [INFOSEC-99]