Original 1985 NewDES cipher by Robert Scott as implemented in the DarkCrypt Total Commander plugin: 64-bit block, 120-bit key, 8 loop iterations plus a 4-step tail over a fixed 256-byte rotor S-box, simple 4x-repeated key schedule.
| Property | Value |
|---|---|
| Category | Block Ciphers |
| Sub-category | Block Cipher |
| Security status | 🎓 Educational Only |
| Complexity | Intermediate |
| Inventor | Robert Scott; DarkCrypt port by Alexander Myasnikov |
| Year | 1985 |
| Origin | 🇷🇺 Russia |
| Source | algorithms/block/darkcrypt-newdes.js |
| Parameter | Supported values |
|---|---|
| Key sizes | 15 bytes (120 bits) |
| Block sizes | 8 bytes (64 bits) |
Status: 🎓 Educational Only
| Issue | Description | Mitigation |
|---|---|---|
| Related-key weakness | The original (pre-1996) key schedule simply repeats the 15-byte key, which was later shown to be vulnerable to related-key attacks; superseded by NewDES’96. | 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 Newdes — zero key/plaintext
| Field | Value |
|---|---|
key |
000000000000000000000000000000 |
input |
0000000000000000 |
expected |
a2176054f58b3458 |
Vector 2 — DarkCrypt Newdes — incrementing key/plaintext
| Field | Value |
|---|---|
key |
000102030405060708090a0b0c0d0e |
input |
0001020304050607 |
expected |
255cc7953fee5aeb |
Vector 3 — DarkCrypt Newdes — shifted incrementing key/plaintext
| Field | Value |
|---|---|
key |
0102030405060708090a0b0c0d0e0f |
input |
1011121314151617 |
expected |
48fbd180b8f4cd1a |