---
url: /process-functions/security-sha1.md
description: Generate a SHA1 hash from a string.
---

# security.sha1

Generate a SHA1 hash from a string.

```js
security.sha1(str);
```

#### Parameters

* `str` - The string to hash.

#### Example

```js
let hash = security.sha1("Hello"); // "f7ff9e8b7bb2e09b70935a5d785e0cc5d9d0abf0"
```