# GOST hash 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. GOST hash lives in the **Hashing** category of the `fx` menu. ## Parameters | Parameter | Type | Required | Default | Description | | --------- | ------ | -------- | ------- | ------------------------------------------------------------------------ | | Input | string | yes | — | Value to transform. Previous step output or a literal. | | S-Box | string | no | `D-A` | Choose one of: `D-A`, `D-SC`, `E-TEST`, `E-A`, `E-B`, `E-C`, and 4 more. | `Input` is the primary value (previous step output or a literal). ## Returned value | Type | Description | | -------- | --------------------------------------- | | `string` | Result of the GOST hash transformation. | ## Limitations - This operation treats Input as raw bytes (binary-capable). Non-text payloads may display differently after decoding. - Wrong key, algorithm options, or malformed input typically raises an evaluation error — fix Input or options before re-running. ## Example
Run GOST hash 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. Adjust optional parameters when the defaults do not match your payload. 1. Set **Input** to the value to transform (previous step output or a literal). 2. Review **S-Box** and keep defaults unless your format requires otherwise. 3. Confirm **Output value** shows the transformed result.