Lightweight hash function based on SKINNY-128-256 tweakable block cipher. Uses 32-byte internal state with 4-byte absorption rate for efficient lightweight implementations.
| Property | Value |
|---|---|
| Category | Hash Functions |
| Sub-category | Lightweight Hash |
| Security status | 🧪 Experimental |
| Complexity | Advanced |
| Inventor | Beierle, Jean, Kölbl, Leander, Moradi, Peyrin, Sasaki, Sasdrich, Sim |
| Year | 2016 |
| Origin | 🌐 International |
| Source | algorithms/hash/skinny-hash.js |
| Parameter | Supported values |
|---|---|
| Output sizes | 32 bytes (256 bits) |
Status: 🧪 Experimental
No vulnerabilities are recorded for this implementation.
6 vectors ship with this algorithm and run in the test suite. Byte values are hexadecimal.
Vector 1 — SKINNY-tk2-HASH: Empty message (Count=1)
| Field | Value |
|---|---|
input |
(empty) |
expected |
5dc460677eba0df3b48c60e949097a6c5d58e1c9ecf97c6fe89212b4b91f246f |
Vector 2 — SKINNY-tk2-HASH: Single byte 0x00 (Count=2)
| Field | Value |
|---|---|
input |
00 |
expected |
49bc2538dec23cd247989de36f83bb730d307c758405ef15f7e97fcb7f7674d9 |
Vector 3 — SKINNY-tk2-HASH: Two bytes (Count=3)
| Field | Value |
|---|---|
input |
0001 |
expected |
a5cdcf914b9b8368cb4bc005b36f475e514ed3441799d0e8c022fd50bed8e206 |
Vector 4 — SKINNY-tk2-HASH: Three bytes (Count=4)
| Field | Value |
|---|---|
input |
000102 |
expected |
28fb54a33d65032430af9b45c3417d52d600d22904c8c4ab3675ef29dff999b7 |
Vector 5 — SKINNY-tk2-HASH: Four bytes (Count=5)
| Field | Value |
|---|---|
input |
00010203 |
expected |
5557caa3489858bbf119d7fcf55cdaa1e9817fd647cf68094432a2487d20d377 |
Vector 6 — SKINNY-tk2-HASH: Sixteen bytes (Count=17)
| Field | Value |
|---|---|
input |
000102030405060708090a0b0c0d0e0f |
expected |
8e110634307103b6aa92851b083058814f2a64da807b0824eb8d2865cc6a1447 |