GOST Hash Generator
Generate GOST R 34.11-94 and Streebog (GOST R 34.11-2012) hashes
Result Streebog-256
About GOST Hash Functions
What is GOST Hash?
GOST hash functions are cryptographic hash algorithms developed in Russia and standardized as national standards. The GOST R 34.11 series includes two main versions: the original GOST R 34.11-94 and the newer GOST R 34.11-2012, also known as Streebog.
GOST R 34.11-94
GOST R 34.11-94 is the original Russian cryptographic hash function standardized in 1994. It produces a 256-bit (32-byte) hash value. This algorithm was documented in RFC 5831. While it served well for many years, it has been superseded by the newer Streebog algorithm for most applications.
GOST R 34.11-2012 (Streebog)
Streebog (GOST R 34.11-2012) is the modern Russian cryptographic hash function standardized in 2012. It produces either 256-bit or 512-bit hash values and is documented in RFC 6986. Streebog offers improved security margins and performance compared to its predecessor.
Key Features
- Security: Streebog provides strong resistance against collision and preimage attacks
- Flexibility: Streebog supports both 256-bit and 512-bit output lengths
- Standardization: Both algorithms are Russian national standards (GOST)
- International Recognition: Both algorithms are documented in IETF RFCs
Algorithm Comparison
| Algorithm | Output Size | Block Size | Standard |
|---|---|---|---|
| GOST R 34.11-94 | 256 bits | 256 bits | RFC 5831 |
| Streebog-256 | 256 bits | 512 bits | RFC 6986 |
| Streebog-512 | 512 bits | 512 bits | RFC 6986 |
Security Notes
GOST R 34.11-94 has known theoretical weaknesses and should be used only for legacy compatibility. For new applications, use Streebog (GOST R 34.11-2012) which provides stronger security guarantees.
References
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