---
title: "Signature hash algorithm constants enum"
url: "https://help.internetx.com/en/api/core-signature-hash-algorithm-constants-enum/"
lang: "en"
section: "API reference — API reference (XML/JSON)"
breadcrumb: "API documentation (JSON/XML) > Enums and constants > SSL enums"
updated: "2023-09-25"
---

# Signature hash algorithm constants enum

## Description

This enum defines the different SHA algorithms.

## Possible values

-   SHA1
-   SHA2
-   SHA2\_FULL\_CHAIN
-   SHA384
-   SHA512
-   SHA256
-   UNKNOWN

When ordering certificates, only SHA2 and SHA2\_FULL\_CHAIN are supported. Other values are only for display purposes.