GOST Hash

Category: Hashing

Status: Registered and callable in the CyberChef 11.3.0 compatibility inventory.

Input / output: ArrayBuffer → string

Background: https://wikipedia.org/wiki/GOST_(hash_function)

What it does

The GOST hash function, defined in the standards GOST R 34.11-94 and GOST 34.311-95 is a 256-bit cryptographic hash function. It was initially defined in the Russian national standard GOST R 34.11-94 Information Technology – Cryptographic Information Security – Hash Function. The equivalent standard used by other member-states of the CIS is GOST 34.311-95. This function must not be confused with a different Streebog hash function, which is defined in the new revision of the standard GOST R 34.11-2012. The GOST hash function is based on the GOST block cipher.

Note

Status here means the operation name is implemented and callable. It does not by itself promise byte-for-byte parity for every upstream option. See Compatibility and current status for the verified scope and known boundaries.

Arguments and options

Arguments are positional. Keep their order when using bake() or Pipeline.then().

Index	Name	UI type	PyChef default	Accepted values / format
`0`	Algorithm	`argSelector`	`'GOST 28147 (1994)'`	`'GOST 28147 (1994)'`, `'GOST R 34.11 (Streebog, 2012)'`
`1`	Digest length	`option`	`'256'`	`'256'`, `'512'`
`2`	sBox	`option`	`'D-A'`	`'E-TEST'`, `'E-A'`, `'E-B'`, `'E-C'`, `'E-D'`, `'E-SC'`, `'E-Z'`, `'D-TEST'`, `'D-A'`, `'D-SC'`

Recipe template

Important

This is a call template built from the documented defaults. Replace placeholder values such as empty keys, paths, patterns, or lookup data before running it.

from pychef import bake

input_value = b"example"
args = ['GOST 28147 (1994)', '256', 'D-A']
result = bake(input_value, [{"op": 'GOST Hash', "args": args}])
print(result)

Pipeline example

from pychef import Pipeline

args = ['GOST 28147 (1994)', '256', 'D-A']
transform = Pipeline().then('GOST Hash', *args)
result = transform(b"example")

Direct call

pychef.ops.run_operation runs any registered operation as a plain function, under the active ExecutionPolicy (safe defaults, no network):

from pychef.ops import run_operation

args = ['GOST 28147 (1994)', '256', 'D-A']
result = run_operation('GOST Hash', b"example", args=args)

Common operations also have typed helpers in Direct operations.

Low-level operation module

Warning

The module below is an internal implementation detail. It applies no execution policy, resource limits, or error sanitization; prefer bake(), Pipeline, or pychef.ops for application code.

The registered entry point lives in pychef.operations.by_operation.gost_hash. Direct calls receive the input value and a positional argument tuple:

from pychef.operations.by_operation.gost_hash import run

result = run(b"example", tuple(['GOST 28147 (1994)', '256', 'D-A']))

pychef.operations.by_operation.gost_hash.run(value, args)

Run this operation using its shared internal implementation.

Parameters:

value (str | bytes)
args (Sequence[Any])

Return type:

str | bytes