---
title: digest.hash_sha512
summary: null
url: >-
  https://www.fastly.com/documentation/reference/vcl/functions/cryptographic/digest-hash-sha512
---

```
STRING digest.hash_sha512(STRING s)
```

**Available in:** all subroutines

Returns a SHA-512 cryptographic hash for the string `s`.

## Example

```vcl
declare local var.hash_sha512 STRING;
set var.hash_sha512 = digest.hash_sha512("123456789");
# var.hash_sha512 is now "d9e6762dd1c8eaf6d61b3c6192fc408d4d6d5f1176d0c29169bc24e71c3f274ad27fcd5811b313d681f7e55ec02d73d499c95455b6b5bb503acf574fba8ffe85"
```