DarkCrypt Total Commander plugin block cipher: 36 rounds over a 128-bit block (four 32-bit words), round-robin between three Blowfish-style F-box sets, keyed via a 576-bit key through a two-pass Blowfish-style self-encryption schedule applied to a pi-seeded constant table.
| 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-cobra128576.js |
| Parameter | Supported values |
|---|---|
| Key sizes | 72 bytes (576 bits) |
| Block sizes | 16 bytes (128 bits) |
Status: 🎓 Educational Only
| Issue | Description | Mitigation |
|---|---|---|
| Non-standard variant | Undocumented, unanalyzed DarkCrypt-only cipher; not recommended for real use. | Use AES or another vetted cipher. |
5 vectors ship with this algorithm and run in the test suite. Byte values are hexadecimal.
Vector 1 — DarkCrypt Cobra128 – zero key/plaintext
| Field | Value |
|---|---|
key |
00000000000000000000000000000000 00000000000000000000000000000000 00000000000000000000000000000000 00000000000000000000000000000000 0000000000000000 |
input |
00000000000000000000000000000000 |
expected |
324b3eb95a184327b23cefd83d8e330b |
Vector 2 — DarkCrypt Cobra128 – incrementing key/plaintext
| Field | Value |
|---|---|
key |
000102030405060708090a0b0c0d0e0f 101112131415161718191a1b1c1d1e1f 202122232425262728292a2b2c2d2e2f 303132333435363738393a3b3c3d3e3f 4041424344454647 |
input |
000102030405060708090a0b0c0d0e0f |
expected |
56730009366ee99eb8c4375eb94bed1a |
Vector 3 — DarkCrypt Cobra128 – shifted incrementing key/plaintext
| Field | Value |
|---|---|
key |
0102030405060708090a0b0c0d0e0f10 1112131415161718191a1b1c1d1e1f20 2122232425262728292a2b2c2d2e2f30 3132333435363738393a3b3c3d3e3f40 4142434445464748 |
input |
101112131415161718191a1b1c1d1e1f |
expected |
cdb50a1858e9968de5a562073a74ead6 |
Vector 4 — DarkCrypt Cobra128 – random key/plaintext #1
| Field | Value |
|---|---|
key |
0826181ab27ae68c63f4760fb1a483a4 fb4a492e8a5750cf191602e84441d14a de46bd13cab2adfcb07d8769657dce7d 0e97e7a164eed0561f58780e4b814509 c274f74eb710da07 |
input |
af8c2de23857e7cdd85c7e1a2599d2f7 |
expected |
1c9fe1280acbeb6807840a517864d03c |
Vector 5 — DarkCrypt Cobra128 – random key/plaintext #2
| Field | Value |
|---|---|
key |
3adcf85d3144fb1c28844dd151324434 fd371fe213b4feefc54b231c67d9d111 fe49523a1c2bb5a440a768bc9853e5eb abe059a5b307ca81de6892504304254b 6b66b40eccc65d18 |
input |
71d64f6ee14c98cdacea12511fc52921 |
expected |
d7f7bfe852a0e28c20cfa4c3472e395b |