Lightweight hash function based on bit-sliced PRESENT-like permutations, finalist in NIST Lightweight Cryptography competition. Uses KNOT-384 permutation with 256-bit output.
| Property | Value |
|---|---|
| Category | Hash Functions |
| Sub-category | Lightweight Hash |
| Security status | 🧪 Experimental |
| Complexity | Advanced |
| Inventor | Zheng Gong, Guohong Liao, Ling Song, Keting Jia, Lei Hu |
| Year | 2019 |
| Origin | 🇨🇳 China |
| Source | algorithms/hash/knot-hash.js |
| Parameter | Supported values |
|---|---|
| Output sizes | 32 bytes (256 bits) |
Status: 🧪 Experimental
No vulnerabilities are recorded for this implementation.
10 vectors ship with this algorithm and run in the test suite. Byte values are hexadecimal.
Vector 1 — KNOT-HASH-256-384: Empty message (NIST KAT Count=1)
| Field | Value |
|---|---|
input |
(empty) |
expected |
5025252949bf0ebf9d750d2e11ab5c75e4f7b8dca426b58ea2ae52a857653e04 |
Vector 2 — KNOT-HASH-256-384: Single zero byte (NIST KAT Count=2)
| Field | Value |
|---|---|
input |
00 |
expected |
c15c34623e347c0d3f73b84d8f1706f4f95c5640a1ab8db43fd7b07e07ad0397 |
Vector 3 — KNOT-HASH-256-384: Two bytes (NIST KAT Count=3)
| Field | Value |
|---|---|
input |
0001 |
expected |
53ca8ec8bfbb0610154c86019bdbb45c70706696120233d61ec1199bccad8cd3 |
Vector 4 — KNOT-HASH-256-384: Three bytes (NIST KAT Count=4)
| Field | Value |
|---|---|
input |
000102 |
expected |
9e6908918b5445ffac8321b0d8eb83a47d0c2c858cdad1dbc81db70f9df012ed |
Vector 5 — KNOT-HASH-256-384: Four bytes (NIST KAT Count=5)
| Field | Value |
|---|---|
input |
00010203 |
expected |
21ef8a4c2e600a3d2b40de5a80e6ba4b664116a1383f26ef95ad1892be649cd5 |
Vector 6 — KNOT-HASH-256-384: Eight bytes (NIST KAT Count=9)
| Field | Value |
|---|---|
input |
0001020304050607 |
expected |
df3dbefa6ab5194e5692c7fef78c442f6a6feaf262adb5f3630682b58fe3766f |
Vector 7 — KNOT-HASH-256-384: 16 bytes (NIST KAT Count=17)
| Field | Value |
|---|---|
input |
000102030405060708090a0b0c0d0e0f |
expected |
b3f056368184838cc83dfb0e7466e439a010743ae7c03e55022d116b5c3733b3 |
Vector 8 — KNOT-HASH-256-384: 32 bytes (NIST KAT Count=33)
| Field | Value |
|---|---|
input |
000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f |
expected |
4968d39797d02a81928e67b085e06f5c9dfb44a1fd8d49f3029b9af126783b54 |
Vector 9 — KNOT-HASH-256-384: 48 bytes (NIST KAT Count=49)
| Field | Value |
|---|---|
input |
000102030405060708090a0b0c0d0e0f 101112131415161718191a1b1c1d1e1f 202122232425262728292a2b2c2d2e2f |
expected |
8d818b7b903ba04a94cf0992b89a2988ba086c339096d16dfd636b4a3f7bd743 |
Vector 10 — KNOT-HASH-256-384: 64 bytes (NIST KAT Count=65)
| Field | Value |
|---|---|
input |
000102030405060708090a0b0c0d0e0f 101112131415161718191a1b1c1d1e1f 202122232425262728292a2b2c2d2e2f 303132333435363738393a3b3c3d3e3f |
expected |
c38b93aac496b1376a1e53e7a82a2836a5141a08bc91f48291d1446921a535b8 |