Skip to main content
Tool Factory

Hashing & Checksums

GOST Hash Calculator

Calculate or verify a digest with GOST Hash. Enter the data, choose the digest options, then copy the calculated value.

Tool workspace

Your input stays in this browser.

Add the required input to continue.

Needs input

You can run the tool again after any change.

Options

Your result appears here

Calculate or verify a digest with GOST Hash. Enter the data, choose the digest options, then copy the calculated value.

This tool runs open-source code from CyberChef by GCHQ (Apache License 2.0). See open-source credits.

GOST Hash Calculator uses GOST Hash for the supplied input. The operation returns a deterministic digest for the supplied input and selected settings. The digest or checksum format is specific to GOST Hash Calculator.

The operation returns a deterministic digest for the supplied input and selected settings. The digest or checksum format is specific to GOST Hash Calculator. This result runs in the browser for this catalog category. Processing runs in the browser.

This digest provides deterministic comparison output; it does not provide encryption or source authentication.

Instructions

  1. Provide text or data for this tool.
  2. Use a short public fixture. This applies to GOST Hash Calculator.
  3. Record every size, round, variant, or seed setting beside the digest. This applies to GOST Hash Calculator.
  4. Change one input byte to verify that the result changes as expected. This applies to GOST Hash Calculator.

Example

Input: Short public bytes "Test message". Algorithm operation: GOST Hash Calculator.

Settings: GOST Hash Calculator: Use the operation's documented input encoding. Select digest size, rounds, variant, seed, or output encoding when shown. Keep byte order and formatting unchanged when comparing outputs.

Result: The operation returns a deterministic digest for the supplied input and selected settings. The digest or checksum format is specific to GOST Hash Calculator.

Limits

  • GOST Hash Calculator: A digest is one-way output and does not encrypt the input.
  • GOST Hash Calculator: Digest equality depends on exact bytes, encoding, and settings.
  • GOST Hash Calculator: A digest alone does not authenticate its source.

Questions

What input does GOST Hash Calculator accept?

GOST Hash Calculator accepts binary data or a selected file.

Which settings does GOST Hash Calculator provide?

GOST Hash Calculator provides controls for Algorithm, GOST 28147 (1994), GOST R 34.11 (Streebog, 2012), Digest length, sBox.

What does GOST Hash Calculator return?

GOST Hash Calculator returns text. 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.