Message digest algorithm

nounid 3249·updated May 9, 2026

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Message digest algorithms are SHA1, MD2, MD4 and MD5. These algorithms are one-way functions unlike private and public key encryption algorithms. Scope Note: All digest algorithms take a message of arbitrary length and produce a 128-bit message digest.

MWE

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Classifications

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Entity Type

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

Sensitivity

—85%llm-generatedllm:claude-haiku-4-5

Information Class

—90%llm-generatedllm:claude-haiku-4-5

Variants

3 surface forms

plural: Message digest algorithms
possessive: Message digest algorithm's
pluralpossessive: Message digest algorithms'

Framework definitions

2 senses across 2 frameworks

ISACA Cybersecurity Glossary1 senseview framework →

§1: Message digest algorithms are SHA1, MD2, MD4 and MD5. These algorithms are one-way functions unlike private and public key encryption algorithms. Scope Note: All digest algorithms take a message of arbitrary length and produce a 128-bit message digest.

Legacy lexicon import1 senseview framework →

§1 · legacy_primary: Message digest algorithms are SHA1, MD2, MD4 and MD5. These algorithms are one-way functions unlike private and public key encryption algorithms. Scope Note: All digest algorithms take a message of arbitrary length and produce a 128-bit message digest.
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