Hawkynt

MISTY2

Enhanced theoretical successor to MISTY1 with 12-round structure. Features enhanced FL/FO functions and additional diffusion. Academic design for educational purposes only.

Properties

Property Value
Category Block Ciphers
Sub-category Block Cipher
Security status 🎓 Educational Only
Complexity Intermediate
Inventor Theoretical enhancement of Mitsuru Matsui design
Year 2000
Origin 🇯🇵 Japan
Source algorithms/block/misty.js

Parameters

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

Security

Status: 🎓 Educational Only

No vulnerabilities are recorded for this implementation.

Documentation

References

Test vectors

1 vector ship with this algorithm and run in the test suite. Byte values are hexadecimal.

Vector 1 — MISTY2 regression vector (no published KAT exists for MISTY2)

Field Value
key 00112233445566778899aabbccddeeff
input 0123456789abcdef
expected 1232eb29d12cf745

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