Hawkynt

BLAKE2s

BLAKE2s is a high-speed cryptographic hash function optimized for 8-32 bit platforms. It’s the 32-bit version of BLAKE2 and is used in protocols like WireGuard.

Properties

Property	Value
Category	Hash Functions
Sub-category	BLAKE Family
Security status	Not classified
Complexity	Advanced
Inventor	Jean-Philippe Aumasson, Samuel Neves, Zooko Wilcox-O’Hearn, Christian Winnerlein
Year	2012
Origin	🇨🇭 Switzerland
Source	algorithms/hash/blake2.js

Parameters

Parameter	Supported values
Output sizes	32 bytes (256 bits)

Security

Status: not classified — treat as unverified.

No vulnerabilities are recorded for this implementation.

Documentation

• RFC 7693 - BLAKE2 Cryptographic Hash and MAC
• BLAKE2 Official Specification
• BLAKE2 Reference Implementation

References

• Wikipedia BLAKE2
• WireGuard Protocol

Test vectors

3 vectors ship with this algorithm and run in the test suite. Byte values are hexadecimal.

Vector 1 — RFC 7693 BLAKE2s - Empty string

Field	Value
input	(empty)
expected	69217a3079908094e11121d042354a7c1f55b6482ca1a51e1b250dfd1ed0eef9

Vector 2 — RFC 7693 BLAKE2s - ‘abc’

Field	Value
input	616263
expected	508c5e8c327c14e2e1a72ba34eeb452f37458b209ed63a294d999b4c86675982

Vector 3 — Linux crypto test vector - Empty string unkeyed

Field	Value
input	(empty)
expected	69217a3079908094e11121d042354a7c1f55b6482ca1a51e1b250dfd1ed0eef9

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