31-round block cipher from the DarkCrypt Total Commander plugin. Key-dependent 64-word round table built via a three-stage key schedule (fixed warm-up scramble, 10-round key/table mixing, 10-iteration key-buffer finalization). 64-bit block, 512-bit key.
| Property | Value |
|---|---|
| Category | Block Ciphers |
| Sub-category | Block Cipher |
| Security status | 🎓 Educational Only |
| Complexity | Advanced |
| Inventor | Alexander Myasnikov (DarkCrypt / “Zarya” project) |
| Year | 2009 |
| Origin | 🇷🇺 Russia |
| Source | algorithms/block/darkcrypt-messa.js |
| Parameter | Supported values |
|---|---|
| Key sizes | 64 bytes (512 bits) |
| Block sizes | 8 bytes (64 bits) |
Status: 🎓 Educational Only
| Issue | Description | Mitigation |
|---|---|---|
| Unanalyzed non-standard cipher | No public specification or third-party cryptanalysis exists for this cipher. Not recommended for real use. | Use AES or another vetted, publicly analyzed cipher. |
3 vectors ship with this algorithm and run in the test suite. Byte values are hexadecimal.
Vector 1 — DarkCrypt Messa — zero key/plaintext
| Field | Value |
|---|---|
key |
00000000000000000000000000000000 00000000000000000000000000000000 00000000000000000000000000000000 00000000000000000000000000000000 |
input |
0000000000000000 |
expected |
bd8de5f59862ed38 |
Vector 2 — DarkCrypt Messa — incrementing key/plaintext
| Field | Value |
|---|---|
key |
000102030405060708090a0b0c0d0e0f 101112131415161718191a1b1c1d1e1f 202122232425262728292a2b2c2d2e2f 303132333435363738393a3b3c3d3e3f |
input |
0001020304050607 |
expected |
b538a173d13fc77f |
Vector 3 — DarkCrypt Messa — shifted incrementing key/plaintext
| Field | Value |
|---|---|
key |
0102030405060708090a0b0c0d0e0f10 1112131415161718191a1b1c1d1e1f20 2122232425262728292a2b2c2d2e2f30 3132333435363738393a3b3c3d3e3f40 |
input |
1011121314151617 |
expected |
94e00bceae69da25 |