Hawkynt

KNOT-AEAD-128-384

NIST Lightweight Cryptography finalist using 384-bit sponge construction with bit-sliced KNOT permutation. Offers higher throughput than KNOT-128-256 with a 192-bit rate, ideal for constrained environments requiring performance.

Properties

Property	Value
Category	Authenticated Encryption
Sub-category	Authenticated Encryption
Security status	🧪 Experimental
Complexity	Advanced
Inventor	Designers from Nanyang Technological University
Year	2019
Origin	Not specified
Source	algorithms/aead/knot-aead.js

Parameters

Parameter	Supported values
Key sizes	16 bytes (128 bits)
Tag sizes	16 bytes (128 bits)

Capabilities

Flag	Value
SupportsDetached	No

Security

Status: 🧪 Experimental

No vulnerabilities are recorded for this implementation.

Documentation

• NIST LWC Project
• KNOT Specification
• Reference Implementation

References

• KNOT NIST LWC Round 2 Submission Package (Reference C Code)
• NIST LWC Round 2 Candidates

Test vectors

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

Vector 1 — NIST LWC KAT Vector #1: Empty PT/AD

Field	Value
key	000102030405060708090a0b0c0d0e0f
nonce	000102030405060708090a0b0c0d0e0f
associatedData	(empty)
input	(empty)
expected	df323ce70693fab9266458adf3ed3d3f

Vector 2 — NIST LWC KAT Vector #2: Empty PT with 1-byte AD

Field	Value
key	000102030405060708090a0b0c0d0e0f
nonce	000102030405060708090a0b0c0d0e0f
associatedData	00
input	(empty)
expected	6a1315d028a57be50a1e0106297175f9

Vector 3 — NIST LWC KAT Vector #5: Empty PT with 4-byte AD

Field	Value
key	000102030405060708090a0b0c0d0e0f
nonce	000102030405060708090a0b0c0d0e0f
associatedData	00010203
input	(empty)
expected	a250d62293cc5e144170038925dcc670

Vector 4 — NIST LWC KAT Vector #9: Empty PT with 8-byte AD

Field	Value
key	000102030405060708090a0b0c0d0e0f
nonce	000102030405060708090a0b0c0d0e0f
associatedData	0001020304050607
input	(empty)
expected	7960e636225be5906093c052c4d9d2b9

Vector 5 — NIST LWC KAT Vector #25: Empty PT with 24-byte AD (rate boundary)

Field	Value
key	000102030405060708090a0b0c0d0e0f
nonce	000102030405060708090a0b0c0d0e0f
associatedData	000102030405060708090a0b0c0d0e0f1011121314151617
input	(empty)
expected	b072e203798396f521abea46fe5d05eb

Vector 6 — NIST LWC KAT Vector #34: 1-byte PT with empty AD

Field	Value
key	000102030405060708090a0b0c0d0e0f
nonce	000102030405060708090a0b0c0d0e0f
associatedData	(empty)
input	00
expected	844b6da7e3aa4b388f62f2896dc5ef157a

Vector 7 — NIST LWC KAT Vector #44: 1-byte PT with 10-byte AD

Field	Value
key	000102030405060708090a0b0c0d0e0f
nonce	000102030405060708090a0b0c0d0e0f
associatedData	00010203040506070809
input	00
expected	203d9c10a8e20eb23c99f37eb3d55629b2

Vector 8 — NIST LWC KAT Vector #340: 10-byte PT with 9-byte AD

Field	Value
key	000102030405060708090a0b0c0d0e0f
nonce	000102030405060708090a0b0c0d0e0f
associatedData	000102030405060708
input	00010203040506070809
expected	0b27c0c725d709ff8c6cfbedefdabe971544fbe89ac67a074561

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