Hawkynt

SparkleHash

NIST Lightweight Cryptography finalist based on the Sparkle permutation. Provides 256-bit hash output (Esch256 variant) with efficient performance on constrained devices.

Properties

Property Value
Category Hash Functions
Sub-category Lightweight Hash
Security status 🛡️ Secure
Complexity Intermediate
Inventor Christoph Dobraunig, Maria Eichlseder, Florian Mendel, Martin Schläffer
Year 2019
Origin Not specified
Source algorithms/hash/sparkle-hash.js

Parameters

Parameter Supported values
Output sizes 32 bytes (256 bits)

Security

Status: 🛡️ Secure

No vulnerabilities are recorded for this implementation.

Documentation

References

Test vectors

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

Vector 1 — Esch256: Empty message (NIST LWC KAT)

Field Value
input (empty)
expected c0e815d78b875dc768c6c8b3afa51987cd69e5c087d387368628a511cfad5730

Vector 2 — Esch256: Single byte 0x00 (NIST LWC KAT)

Field Value
input 00
expected d515fd9c2852d9d6f00c9cf01d858af467eedf21ff68cc14c005b3eff7a6ecd3

Vector 3 — Esch256: Two bytes 0x0001 (NIST LWC KAT)

Field Value
input 0001
expected fbcad7ab77fd4cc844534d2716d08c092b40b86e00647ecaa429afdfe3b3fc43

Vector 4 — Esch256: Three bytes 0x000102 (NIST LWC KAT)

Field Value
input 000102
expected f33561ba7dcf690e4e1c519b28712a878028417a3974873f188ae33b289fcab6

Vector 5 — Esch256: Four bytes 0x00010203 (NIST LWC KAT)

Field Value
input 00010203
expected 649d3e5258e504ef842a7176108d36a823e751d5e0ee31e3faf111415bb9bbc2

Vector 6 — Esch256: 16 bytes (full rate) (NIST LWC KAT)

Field Value
input 000102030405060708090a0b0c0d0e0f
expected acff841e2a526d83d6e94ab5564d6d64c98f5e8016bb1c2950386ed156c6c174

Vector 7 — Esch256: 32 bytes (NIST LWC KAT)

Field Value
input 000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f
expected 78b905b2e2d4110b76ef8afd2495f58ad6ffd6b9727377f3e5dfceebf3031e24

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