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HKDF

HKDF is a multi-purpose key derivation function (KDF) based on the HMAC message authentication code. HKDF follows "extract-then-expand" paradigm, where the KDF logically consists of two modules: the first stage takes the input keying material and "extracts" from it a fixed-length pseudorandom key, and then the second stage "expands" this key into several…

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Map overview Semantic statistics

HKDF

Nodes39
Edges38
Triples68
Avg. degree1.95
Density0.051282
Components1

How this topic connects Entity context

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HKDF

Top relations

related to HKDF-Extract · 20
HKDF → Computational, Diffie-Hellman, Even, HKDF's, HKDF-Extract, HKDF-Extract's, However, Ideally, IKM, IKMs, In, KDF, OKM, PRK, Salt, SKM, Such, Using, Without, XTR
related to HKDF-Expand · 13
HKDF → CTXinfo, Even, HKDF-Expand, HKDF-Extract, HMAC, HMAC's, IKM, Multiple, OKM, PRF, PRK, SHA-256, Subsequent
has application · 12
HKDF → Elliptic-curve Diffie-Hellman, IPsec Internet Key Exchange, Message Layer Security, Noise Protocol Framework, PRNG, Sealed Sender, Secure Value Recovery, Signal Protocol, Signal's, The, TLS, X3DH
related to Implementations · 11
HKDF → Go, Java, JavaScript, Perl, PHP, Python, RFC6234, Ruby, Rust, Secure Hash Standard, There
related to Mechanism · 5
HKDF → Expand, Extract, HKDF-Expand, HKDF-Extract, IKM
related to Standardization · 4
HKDF → It, KDF, NIST SP800-56Cr2, RFC
is a · 3
HKDF → main component in the Noise Protocol Framework, multi-purpose key derivation function, version of it and citing its paper for the rationale for the recommendations' extract-and-expand mechanisms

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Important terminology

displaystyle mathrm key ikm hash function hkdf-extract output hkdf-expand prk may hmac pseudorandom random entropy length okm message kdf using

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
HKDFis amulti-purpose key derivation function0.90text
HKDFis aversion of it and citing its paper for the rationale for the recommendations' extract-and-expand mechanisms0.90text
HKDFis amain component in the Noise Protocol Framework0.90text
HKDFhas applicationSignal Protocol0.60section
HKDFhas applicationElliptic-curve Diffie-Hellman0.60section
HKDFhas applicationX3DH0.60section
HKDFhas applicationSignal's0.60section
HKDFhas applicationSecure Value Recovery0.60section
HKDFhas applicationSealed Sender0.60section
HKDFhas applicationNoise Protocol Framework0.60section
HKDFhas applicationMessage Layer Security0.60section
HKDFhas applicationIPsec Internet Key Exchange0.60section

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