MULTI2 block cipher used in DVB (Digital Video Broadcasting) systems. Features 64-bit blocks with 320-bit keys and variable rounds for security flexibility.
| Property | Value |
|---|---|
| Category | Block Ciphers |
| Sub-category | Feistel Network |
| Security status | 🎓 Educational Only |
| Complexity | Intermediate |
| Inventor | Hitachi |
| Year | 1988 |
| Origin | 🇯🇵 Japan |
| Source | algorithms/block/multi2.js |
| Parameter | Supported values |
|---|---|
| Key sizes | 40 bytes (320 bits) |
| Block sizes | 8 bytes (64 bits) |
| Rounds | 1 round to 255 rounds |
Status: 🎓 Educational Only
No vulnerabilities are recorded for this implementation.
2 vectors ship with this algorithm and run in the test suite. Byte values are hexadecimal.
Vector 1 — MULTI2: Test vector 1 (LibTomCrypt)
| Field | Value |
|---|---|
key |
00000000000000000000000000000000 00000000000000000000000000000000 0123456789abcdef |
rounds |
128 |
input |
0000000000000001 |
expected |
f89440845e11cf89 |
Vector 2 — MULTI2: Test vector 2 (LibTomCrypt)
| Field | Value |
|---|---|
key |
35919d960702e2ce8d0b583cc9c89d59 a2ae964e878245ed3f2e62d63635d067 b127b906e7562238 |
rounds |
216 |
input |
1fb46060d0b34fa5 |
expected |
ca84a93475c860e5 |