Five Modes of Operation Have Been Standardized by NISt for Use

question 37

Short Answer

Five modes of operation have been standardized by NISt for use with symmetric block ciphers such as DES and AES: electronic codebook mode, cipher block chaining mode, cipher feedback mode, __________, and counter mode.

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Definitions:

Scale Parameter

A parameter in statistical or mathematical models that measures the scale or level of concentration of a distribution or data set.

Probability

The measure of the likelihood that a particular event will occur, expressed as a number between 0 and 1.

Transponders

Devices that transmit a responding signal when they receive a designated signal, used in various applications like aviation, satellite communication, and toll collection.

License Plates

License Plates are metal or plastic plates attached to vehicles for official identification purposes, typically displaying a unique combination of letters and numbers.