---
title: LAAccessControlOperation.useKeySign
framework: localauthentication
role: symbol
role_heading: Case
path: localauthentication/laaccesscontroloperation/usekeysign
---

# LAAccessControlOperation.useKeySign

Specifies that access control is used for accessing an existing key.

## Declaration

```swift
case useKeySign
```

## See Also

### Constants

- [LAAccessControlOperation.createItem](localauthentication/laaccesscontroloperation/createitem.md)
- [LAAccessControlOperation.useItem](localauthentication/laaccesscontroloperation/useitem.md)
- [LAAccessControlOperation.createKey](localauthentication/laaccesscontroloperation/createkey.md)
- [LAAccessControlOperation.useKeyDecrypt](localauthentication/laaccesscontroloperation/usekeydecrypt.md)
- [LAAccessControlOperation.useKeyKeyExchange](localauthentication/laaccesscontroloperation/usekeykeyexchange.md)