Hawkynt

TinyJAMBU-128 AEAD

Lightweight authenticated encryption finalist in NIST LWC. Features 128-bit keyed permutation with 4-word state, 96-bit nonce, and 64-bit authentication tag. Optimized for constrained environments.

Properties

Property	Value
Category	Authenticated Encryption
Sub-category	Lightweight Cryptography
Variant	128
Security status	🧪 Experimental
Complexity	Intermediate
Inventor	Hongjun Wu, Tao Huang
Year	2019
Origin	🇨🇳 China
Source	algorithms/aead/tinyjambu.js

Parameters

Parameter	Supported values
Key sizes	16 bytes (128 bits)
Tag sizes	8 bytes (64 bits)

Capabilities

Flag	Value
SupportsDetached	No

Security

Status: 🧪 Experimental

No vulnerabilities are recorded for this implementation.

Documentation

• NIST LWC Finalist Specification
• NIST Lightweight Cryptography Project

References

• rweather/TinyJAMBU Official-Author-Adjacent Reference (C)
• rweather/lwc-finalists C Reference (embedded-optimized)

Test vectors

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

Vector 1 — TinyJAMBU-128: Empty message, empty AAD (Count 1)

Field	Value
key	000102030405060708090a0b0c0d0e0f
nonce	000102030405060708090a0b
aad	(empty)
input	(empty)
expected	7c5456e109b55a3a

Vector 2 — TinyJAMBU-128: Empty message with 1-byte AAD (Count 2)

Field	Value
key	000102030405060708090a0b0c0d0e0f
nonce	000102030405060708090a0b
aad	00
input	(empty)
expected	607dfb91ae92d187

Vector 3 — TinyJAMBU-128: Empty message with 4-byte AAD (Count 5)

Field	Value
key	000102030405060708090a0b0c0d0e0f
nonce	000102030405060708090a0b
aad	00010203
input	(empty)
expected	f7a293db3fb16464

Vector 4 — TinyJAMBU-128: 1-byte message, empty AAD (Count 34)

Field	Value
key	000102030405060708090a0b0c0d0e0f
nonce	000102030405060708090a0b
aad	(empty)
input	00
expected	02a5b193ad5739203e

Vector 5 — TinyJAMBU-128: 1-byte message with 1-byte AAD (Count 35)

Field	Value
key	000102030405060708090a0b0c0d0e0f
nonce	000102030405060708090a0b
aad	00
input	00
expected	cab4391f64177f8c2b

Vector 6 — TinyJAMBU-128: 4-byte message with 4-byte AAD (Count 137)

Field	Value
key	000102030405060708090a0b0c0d0e0f
nonce	000102030405060708090a0b
aad	00010203
input	00010203
expected	362bc344c45c165ceca7fd82

Vector 7 — TinyJAMBU-128: 8-byte message with 8-byte AAD (Count 273)

Field	Value
key	000102030405060708090a0b0c0d0e0f
nonce	000102030405060708090a0b
aad	0001020304050607
input	0001020304050607
expected	c7d6a4d8244a54636022d9e7ab0a0673

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