A device that can (a) receive a signal, (b) amplify, delay, or otherwise manipulate the signal, and (c) retransmit it solely for creating deception. [From Weik '89]

[In security, the] Revocation of the certification of an information-system (IS) item or equipment for cause. [INFOSEC-99]

See dB.

[To] convert enciphered text to the equivalent plain text by means of a cryptographic system. [INFOSEC-99]
Note: This does not include solution by cryptanalysis.

The reversal of a corresponding reversible encipherment [7498-2]

A circuit that measures the probable value of a signal element and makes an output signal decision based on the value of the input signal and a predetermined criterion or criteria.

In the reception of a digital signal, the instant at which a decision is made by a receiving device as to the probable value of a signal condition. Synonym selection position.

1. To convert data by reversing the effect of previous encoding.
2. To interpret a code.
3. [To] convert encoded text into plain text by means of a code. [INFOSEC-99]
Note: Decoding does not include deriving plain text by cryptanalysis.

In a beam with the minimum possible ray divergence or convergence, any mechanism by which rays are caused to diverge or converge from parallelism.
Note 1: Decollimation may be deliberate for systems reasons, or may be caused by many factors, such as refractive index inhomogeneities, occlusions, scattering, deflection, diffraction, reflection, and refraction.
Note 2: Decollimation occurs in applications such as… (Read More →)

The reversal of the procedure conducted by the compression algorithm, which reversal returns [expands] the data to its original size and condition. [After Silicon]