A mathematical value that is used (a) in an algorithm to generate cipher text from plain text or vice versa, and (b) to determine the operation of a cryptographic function (e.g., the synchronized generation of keying material), or a digital signature computation or validation. [After X9.31]

The ability for two nodes, that have cryptographically processed a transaction, to determine the identical transaction key. [After X9.24]

The embodiment of one (or more) crypto-algorithm(s) along with alarms, checks, and other processes essential to effective and secure performance of the cryptographic process(es). [INFOSEC-99]

[A] function that randomly determines the transmit state of a cryptographic logic. [INFOSEC-99]

Seecryptographic key synchronization.

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 →)

Of or pertaining to cryptology. [JP 1-02]

1. The science that deals with hidden, disguised, or encrypted communications. It includes communications security and communications intelligence. [JP1-02]
2. [The] field encompassing both cryptography and cryptanalysis. [INFOSEC-99]

All material including documents, devices, equipment, and apparatus essential to the encryption, decryption, or authentication of telecommunications. When classified, it is designated CRYPTO and subject to special safeguards. [JP 1-02]

Stations holding a common key. [INFOSEC-99]
Note: Activities that hold key for other than use, such as cryptologistic depots, are not cryptonet members for that key. Controlling authorities are de facto members of the cryptonets they control. [NIS]