Raiden, the genetic-programming-designed TEA replacement of Polimon, Hernandez-Castro, Estevez-Tapiador and Ribagorda, at the 16 rounds used by the published reference implementation and shipped by the DarkCrypt Total Commander plugin. TEA/XTEA-family Feistel network with a self-mutating 4-word key state (no separate DELTA accumulator). 64-bit block, 128-bit key.
| Property | Value |
|---|---|
| Category | Block Ciphers |
| Sub-category | Block Cipher |
| Security status | 🎓 Educational Only |
| Complexity | Beginner |
| Inventor | Javier Polimon, Julio C. Hernandez-Castro, Juan M. Estevez-Tapiador, Arturo Ribagorda |
| Year | 2006 |
| Origin | 🇷🇺 Russia |
| Source | algorithms/block/darkcrypt-raiden.js |
| Parameter | Supported values |
|---|---|
| Key sizes | 16 bytes (128 bits) |
| Block sizes | 8 bytes (64 bits) |
Status: 🎓 Educational Only
| Issue | Description | Mitigation |
|---|---|---|
| Broken by differential cryptanalysis | An iterative differential characteristic covering the full cipher is known from automated trail search on ARX constructions, and related-key attacks have also been published. Raiden is broken and must not be used to protect anything. | Use AES or another vetted cipher. |
| All-zero weak key | Under the all-zero key every round value is zero and the round function degenerates, leaving the all-zero block unencrypted. No round constant exists to prevent this. | Never use an all-zero key. |
4 vectors ship with this algorithm and run in the test suite. Byte values are hexadecimal.
Vector 1 — Raiden reference implementation - zero plaintext, incrementing key
| Field | Value |
|---|---|
key |
000102030405060708090a0b0c0d0e0f |
input |
0000000000000000 |
expected |
979531fe59845bca |
Vector 2 — Raiden reference implementation - incrementing key/plaintext
| Field | Value |
|---|---|
key |
000102030405060708090a0b0c0d0e0f |
input |
0001020304050607 |
expected |
3e7ff369dad916bc |
Vector 3 — Raiden reference implementation - shifted incrementing key/plaintext
| Field | Value |
|---|---|
key |
0102030405060708090a0b0c0d0e0f10 |
input |
1011121314151617 |
expected |
44d5e9b829102175 |
Vector 4 — Raiden reference implementation - all-ones plaintext, descending key
| Field | Value |
|---|---|
key |
0f0e0d0c0b0a09080706050403020100 |
input |
ffffffffffffffff |
expected |
54bb5cfd485c0af6 |