DarkCrypt Total Commander plugin cipher: 16 rounds of the standard DES Feistel round function (real DES S-boxes/E/P) without the DES initial/final permutation. Declared 192-bit key but only the high nibble of each of the first 16 key bytes (64 bits) is effective; the remaining declared key material has no effect on the output. 64-bit block. As implemented in the DarkCrypt Total Commander plugin.
| Property | Value |
|---|---|
| Category | Block Ciphers |
| Sub-category | Block Cipher |
| Security status | 🎓 Educational Only |
| Complexity | Intermediate |
| Inventor | Alexander Myasnikov (DarkCrypt/”Zarya” project) |
| Year | 2013 |
| Origin | 🇷🇺 Russia |
| Source | algorithms/block/darkcrypt-3newde.js |
| Parameter | Supported values |
|---|---|
| Key sizes | 24 bytes (192 bits) |
| Block sizes | 8 bytes (64 bits) |
Status: 🎓 Educational Only
| Issue | Description | Mitigation |
|---|---|---|
| Reduced effective key | The declared 192-bit key collapses to 64 bits of real entropy (only 16 nibbles are used); the round function additionally omits DES’s IP/FP. | Use AES or another vetted cipher. |
3 vectors ship with this algorithm and run in the test suite. Byte values are hexadecimal.
Vector 1 — DarkCrypt 3newde — zero key/plaintext
| Field | Value |
|---|---|
key |
000000000000000000000000000000000000000000000000 |
input |
0000000000000000 |
expected |
1c2087fcbbea0dc2 |
Vector 2 — DarkCrypt 3newde — incrementing key/plaintext
| Field | Value |
|---|---|
key |
000102030405060708090a0b0c0d0e0f1011121314151617 |
input |
0001020304050607 |
expected |
fe73f3967b3a7d6f |
Vector 3 — DarkCrypt 3newde — shifted incrementing key/plaintext
| Field | Value |
|---|---|
key |
0102030405060708090a0b0c0d0e0f101112131415161718 |
input |
1011121314151617 |
expected |
b7361e976d0f6e00 |