ARX-based stream cipher designed for high performance and security using Addition, Rotation, and XOR operations. Part of eSTREAM portfolio with no S-boxes or lookup tables required.
| Property | Value |
|---|---|
| Category | Stream Ciphers |
| Sub-category | Stream Cipher |
| Security status | Not classified |
| Complexity | Intermediate |
| Inventor | Daniel J. Bernstein |
| Year | 2005 |
| Origin | 🇺🇸 United States |
| Source | algorithms/stream/salsa20.js |
| Parameter | Supported values |
|---|---|
| Key sizes | 16 bytes (128 bits) to 32 bytes (256 bits) in steps of 16 bytes |
| Block sizes | 1 byte (8 bits) to 65536 bytes (524288 bits) |
Status: not classified — treat as unverified.
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 — eSTREAM Salsa20 Set 1, Vector 0 (128-bit key)
| Field | Value |
|---|---|
key |
80000000000000000000000000000000 |
nonce |
0000000000000000 |
input |
00000000000000000000000000000000 |
expected |
4dfa5e481da23ea09a31022050859936 |
Vector 2 — eSTREAM Salsa20 Set 6, Vector 0 (256-bit key)
| Field | Value |
|---|---|
key |
8000000000000000000000000000000000000000000000000000000000000000 |
nonce |
0000000000000000 |
input |
00000000000000000000000000000000 |
expected |
e3be8fdd8beca2e3ea8ef9475b29a6e7 |