Audit Information systems & IT Security
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Audit Information systems & and IT Security

Information System audit and IT Security

Definitions and Terminology

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known-answer test


method of testing a deterministic mechanism where a given input is processed by the mechanism and the resulting output is then compared to a corresponding known value. NOTE Known Answer Testing of a deterministic mechanism may also include testing the integrity of the software which implements the deterministic mechanism. For example, if the software implementing the deterministic mechanism is digitally signed, the signature can be recalculated, and compared to the known signature value.

source: ISO18031, 2005


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