# Random Bit

Random Bit definition in **Computer Security** terms:

Acronym(s): *None*

Definition(s): A bit for which an attacker has exactly a 50% probability of success of guessing the value of the bit as either zero or one.

**Source(s):** NIST SP 800-106

A bit for which an attacker has exactly a 50% probability of success of guessing the value of the bit as either a zero or one.

**Source(s):** NIST SP 800-107 (Superceded by Rev. 1)

Synonym(s): Unbiased Bit

reference: CSRC Glossary

Tags: computer security

Categorised in: What is
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