Hawkynt

Oribatida-192-96

Lightweight AEAD cipher based on SimP-192 permutation (reduced-round Simon-96-96). Features 128-bit keys, 64-bit nonces, and 96-bit tags with masked ciphertext generation. Optimized for constrained environments.

Properties

Property	Value
Category	Authenticated Encryption
Sub-category	Lightweight Cryptography
Security status	🧪 Experimental
Complexity	Advanced
Inventor	Arghya Bhattacharjee, Eik List, Cuauhtemoc Mancillas López, Mridul Nandi
Year	2019
Origin	🌐 International
Source	algorithms/aead/oribatida.js

Parameters

Parameter	Supported values
Key sizes	16 bytes (128 bits)
Nonce sizes	8 bytes (64 bits)
Tag sizes	12 bytes (96 bits)

Capabilities

Flag	Value
SupportsDetached	No

Security

Status: 🧪 Experimental

No vulnerabilities are recorded for this implementation.

Documentation

• Oribatida Official Website
• NIST LWC Round 2 Submission
• Oribatida Specification (NIST LWC Round 2)

References

• Oribatida Reference Software Package (ISI Kolkata)
• rweather lightweight-crypto Oribatida Source

Test vectors

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

Vector 1 — NIST LWC KAT Count=1: Empty plaintext, empty AD

Field	Value
key	000102030405060708090a0b0c0d0e0f
nonce	0001020304050607
aad	(empty)
input	(empty)
expected	83dcc3e7df9986adc38358cd

Vector 2 — NIST LWC KAT Count=2: Empty plaintext, 1-byte AD

Field	Value
key	000102030405060708090a0b0c0d0e0f
nonce	0001020304050607
aad	00
input	(empty)
expected	2ca7f3d7ac0074e649a768a5

Vector 3 — NIST LWC KAT Count=46: 1-byte plaintext, 12-byte AD (full rate block)

Field	Value
key	000102030405060708090a0b0c0d0e0f
nonce	0001020304050607
aad	000102030405060708090a0b
input	00
expected	5df32fd38e0d3e2a6482dd055d

Vector 4 — NIST LWC KAT Count=18: 0-byte plaintext, 13-byte AD (partial rate block)

Field	Value
key	000102030405060708090a0b0c0d0e0f
nonce	0001020304050607
aad	000102030405060708090a0b0c0d0e0f10
input	(empty)
expected	685c11ca5529e306030fd98f

Vector 5 — NIST LWC KAT Count=403: 12-byte plaintext (full rate block), 6-byte AD

Field	Value
key	000102030405060708090a0b0c0d0e0f
nonce	0001020304050607
aad	000102030405
input	000102030405060708090a0b
expected	a1315d1f07aa2b5bfa676b5cbed7374a962cd217373cce64

---

← All algorithms

This site is open source. Improve this page.