Entropy

nouncandidate·updated May 9, 2026

A measure of the amount of uncertainty that an Attacker faces to determine the value of a secret. Entropy is usually stated in bits.

Framework senses

NISTIR 7298: Glossary of Key Information Security Terms, Revision 21 senseview framework →
§1
A measure of the amount of uncertainty that an Attacker faces to determine the value of a secret. Entropy is usually stated in bits.
NIST SP 800-631 senseview framework →
§1
A measure of the amount of uncertainty that an Attacker faces to determine the value of a secret. Entropy is usually stated in bits.