64-bit block, 160-bit key cipher from the DarkCrypt Total Commander plugin. Unbalanced generalized Feistel over four 16-bit words, 32 rounds using MD4/SHA-1-style choose/parity/majority round functions and a multiply-based key schedule.
| Property | Value |
|---|---|
| Category | Block Ciphers |
| Sub-category | Block Cipher |
| Security status | 🎓 Educational Only |
| Complexity | Advanced |
| Inventor | Alexander Myasnikov (DarkCrypt “Zarya” project) |
| Year | 2013 |
| Origin | 🇷🇺 Russia |
| Source | algorithms/block/darkcrypt-karla.js |
| Parameter | Supported values |
|---|---|
| Key sizes | 20 bytes (160 bits) |
| Block sizes | 8 bytes (64 bits) |
Status: 🎓 Educational Only
| Issue | Description | Mitigation |
|---|---|---|
| Unanalyzed proprietary design | Custom cipher with no public cryptanalysis. | 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 Karla — zero key/plaintext
| Field | Value |
|---|---|
key |
0000000000000000000000000000000000000000 |
input |
0000000000000000 |
expected |
c7bdb02ebf088d20 |
Vector 2 — DarkCrypt Karla — incrementing key/plaintext
| Field | Value |
|---|---|
key |
000102030405060708090a0b0c0d0e0f10111213 |
input |
0001020304050607 |
expected |
7b9603d49fe463d3 |
Vector 3 — DarkCrypt Karla — shifted incrementing key/plaintext
| Field | Value |
|---|---|
key |
0102030405060708090a0b0c0d0e0f1011121314 |
input |
1011121314151617 |
expected |
5ba154dec94695d3 |