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Pseudorandom number generator

nounid 3723·updated May 9, 2026
candidate

An algorithm that produces a sequence of bits that are uniquely determined from an initial value called a seed. The output of the PRNG “appears” to be random, i.e., the output is statistically indistinguishable from random values. A cryptographic PRNG has the additional property that the output is unpredictable, given that the seed is not known.

MWE

Classifications

Entity Type

Capability72%llm-generatedllm:claude-haiku-4-5

Sensitivity

55%llm-generatedllm:claude-haiku-4-5

Information Class

60%llm-generatedllm:claude-haiku-4-5

Variants

acronym
PRNG
plural
Pseudorandom number generators
possessive
Pseudorandom number generator's
pluralpossessive
Pseudorandom number generators'

Framework definitions

NISTIR 7298: Glossary of Key Information Security Terms, Revision 21 senseview framework →
§1
An algorithm that produces a sequence of bits that are uniquely determined from an initial value called a seed. The output of the PRNG “appears” to be random, i.e., the output is statistically indistinguishable from random values. A cryptographic PRNG has the additional property that the output is unpredictable, given that the seed is not known.
CNSSI-4009 (Glossary of Information Assurance Terms)1 senseview framework →
§1
An algorithm that produces a sequence of bits that are uniquely determined from an initial value called a seed. The output of the PRNG “appears” to be random, i.e., the output is statistically indistinguishable from random values. A cryptographic PRNG has the additional property that the output is unpredictable, given that the seed is not known.

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