Hawkynt

Hamsi-512

SHA-3 candidate hash function with 512-bit output. Uses a Serpent-inspired non-linear permutation with a linear-code based message expansion in a concatenation-truncation construction.

Properties

Property	Value
Category	Hash Functions
Sub-category	Hash Function
Security status	📰 Obsolete
Complexity	Advanced
Inventor	Özgül Küçük
Year	2008
Origin	Not specified
Source	algorithms/hash/hamsi.js

Parameters

Parameter	Supported values
Output sizes	64 bytes (512 bits)

Security

Status: 📰 Obsolete

No vulnerabilities are recorded for this implementation.

Documentation

• Hamsi Specification
• Hamsi Submission Package (NIST SHA-3 Round 2)
• sphlib Reference Implementation
• NIST SHA-3 Competition

References

• Distinguishers for the Compression Function and Output Transformation of Hamsi-256
• sphlib test vectors (test_hamsi.c)

Test vectors

1 vector ship with this algorithm and run in the test suite. Byte values are hexadecimal.

Vector 1 — NIST Vector #1 (0 bits)

Field	Value
input	(empty)
expected	5cd7436a91e27fc809d7015c34075406 33dab391127113ce6ba360f0c1e35f40 4510834a551610d6e871e75651ea381a 8ba628af1dcf2b2be13af2eb6247290f

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