---
id: "streebog512hash"
kind: "datatype"
status: "draft"
is_pii: false
categories: ["cryptography"]
langs: ["common"]
quality: 80
url: "http://registry.apicrafter.io/datatype/streebog512hash"
---

# Streebog-512 hash (GOST R 34.11-2012) (`streebog512hash`)

> **Draft.** Draft records have not been reviewed yet and may be incomplete or wrong; do not treat them as authoritative for legal or compliance decisions.

Digest of Streebog, the hash function of the Russian standard GOST R 34.11-2012 (also RFC 6986), with a 512-bit output. It is written as 128 hexadecimal digits. The standard and RFC 6986 print digests in reverse byte order, while libraries such as gostcrypto and the Wikipedia article print them in byte order, as the examples here do. Other 512-bit digests (SHA-512, SHA3-512, Keccak-512 and BLAKE2b-512) have the same length, so the value alone does not tell them apart: use the field name or context.

- Parent datatype: `hash`
- Personal data (PII): no
- Categories: Cryptographic identifiers (cryptography)
- Countries: global
- Languages: Common to most languages (common)
- Classification: identifier

## Detection

Regular expression (Python `re`):

```
^[0-9a-fA-F]{128}$
```

## Examples

- `8e945da209aa869f0455928529bcae4679e9873ab707b55315f56ceb98bef0a7362f715528356ee83cda5f2aac4c6ad2ba3a715c1bcd81cb8e9f90bf4c1c1a8a` — Streebog-512 hash of the empty string
- `1b54d01a4af5b9d5cc3d86d68d285462b19abc2475222f35c085122be4ba1ffa00ad30f8767b3a82384c6574f024c311e2a481332b08ef7f41797891c1646f48` — Streebog-512 hash of the RFC 6986 Example 1 message (63 digits 0123456789012...), in byte order
- `8e945da209aa869f0455928529bcae4679e9873ab707b55315f56ceb98bef0a7362f715528356ee83cda5f2aac4c6ad2ba3a715c1bcd81cb8e9f90bf4c1c1a8` (invalid example) — one hex digit short (127 instead of 128)

## Translations

- ru: Хеш Стрибог-512 (ГОСТ Р 34.11-2012): Значение хеш-функции «Стрибог» по ГОСТ Р 34.11-2012 (RFC 6986) длиной 512 бит, записанное 128 шестнадцатеричными цифрами. Стандарт и RFC 6986 печатают значение в обратном порядке байтов, а библиотеки обычно в прямом.

## Sources

- wikipedia: <https://en.wikipedia.org/wiki/Streebog>
- doc: <https://www.rfc-editor.org/rfc/rfc6986>

## Quality

Score 80/100. Missing: mapping (Wikidata, Schema.org, ...), detector coverage.

JSON: <http://registry.apicrafter.io/api/v1/datatypes/streebog512hash.json> · Edit: <https://github.com/apicrafter/metacrafter-registry/edit/main/data/datatypes/any/cryptography/streebog512hash.yaml>