Mir stream cipher from the DarkCrypt Total Commander plugin. Six 64-bit state words mixed with 64-bit modular multiplications, a T-function term and a key-dependent AES-S-box substitution. 128-bit key, 64-bit IV. As implemented in the DarkCrypt Total Commander plugin.
| Property | Value |
|---|---|
| Category | Stream Ciphers |
| Sub-category | Stream Cipher |
| Security status | 🎓 Educational Only |
| Complexity | Advanced |
| Inventor | Alexander Myasnikov (DarkCrypt) |
| Year | 2013 |
| Origin | 🇷🇺 Russia |
| Source | algorithms/stream/darkcrypt-mir.js |
| Parameter | Supported values |
|---|---|
| Key sizes | 16 bytes (128 bits) |
| Nonce sizes | 8 bytes (64 bits) |
Status: 🎓 Educational Only
| Issue | Description | Mitigation |
|---|---|---|
| Unanalyzed proprietary cipher | Obscure design with no public cryptanalysis; not recommended for real use. | Use a vetted stream cipher such as ChaCha20. |
3 vectors ship with this algorithm and run in the test suite. Byte values are hexadecimal.
Vector 1 — DarkCrypt Mir — incrementing plaintext 00..3F
| Field | Value |
|---|---|
key |
000102030405060708090a0b0c0d0e0f |
iv |
0000000000000000 |
input |
000102030405060708090a0b0c0d0e0f 101112131415161718191a1b1c1d1e1f 202122232425262728292a2b2c2d2e2f 303132333435363738393a3b3c3d3e3f |
expected |
e830032e6a759bbb7483a4d2c105ba2e e96d42ccb708815fb8e52d97712b1690 29c0ac178aa654c83dba6651b0967859 7c9e5c51cb2ef0008b85365a8f051142 |
Vector 2 — DarkCrypt Mir — zero plaintext (raw keystream)
| Field | Value |
|---|---|
key |
000102030405060708090a0b0c0d0e0f |
iv |
0000000000000000 |
input |
00000000000000000000000000000000 00000000000000000000000000000000 00000000000000000000000000000000 00000000000000000000000000000000 |
expected |
e831012d6e709dbc7c8aaed9cd08b421 f97c50dfa31d9748a0fc378c6d36088f 09e18e34ae8372ef15934c7a9cbb5676 4caf6e62ff1bc637b3bc0c61b3382f7d |
Vector 3 — DarkCrypt Mir — non-zero key and IV, 64-byte message (verified against the DarkCrypt implementation)
| Field | Value |
|---|---|
key |
0b30557a9fc4e90e33587da2c7ec1136 |
iv |
073c71a6db10457a |
input |
03203d5a7794b1ceeb0825425f7c99b6 d3f00d2a4764819ebbd8f5122f4c6986 a3c0ddfa1734516e8ba8c5e2ff1c3956 7390adcae704213e5b7895b2cfec0926 |
expected |
58296e532629cee10d4b22d0fc8d128a 7acf2737aa101af6b8e0a117c0a9de1c 178e23af20880990375d8f559de7874c ff32dcacd493b2cb875f146dc681579d |