Modern Russian Federal Standard GOST R 34.12-2015 (Kuznyechik). Substitution-permutation network with 128-bit blocks and 256-bit keys. Educational implementation of the cipher that replaced GOST 28147-89.
| Property | Value |
|---|---|
| Category | Block Ciphers |
| Sub-category | Block Cipher |
| Security status | Not classified |
| Complexity | Advanced |
| Inventor | Russian cryptographers |
| Year | 2015 |
| Origin | 🇷🇺 Russia |
| Source | algorithms/block/gost.js |
| Parameter | Supported values |
|---|---|
| Key sizes | 32 bytes (256 bits) |
| Block sizes | 16 bytes (128 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 — GOST R 34.12-2015 (Kuznyechik) test vector from RFC 7801
| Field | Value |
|---|---|
key |
8899aabbccddeeff0011223344556677fedcba98765432100123456789abcdef |
input |
1122334455667700ffeeddccbbaa9988 |
expected |
7f679d90bebc24305a468d42b9d4edcd |
Vector 2 — GOST R 34.12-2015 (Kuznyechik) test vector 2 from RFC 7801
| Field | Value |
|---|---|
key |
8899aabbccddeeff0011223344556677fedcba98765432100123456789abcdef |
input |
00112233445566778899aabbcceeff0a |
expected |
b429912c6e0032f9285452d76718d08b |