---
title: SecTrustSettingsKeyUsage
framework: security
role: symbol
role_heading: Structure
path: security/sectrustsettingskeyusage
---

# SecTrustSettingsKeyUsage

Allowed uses for the encryption key in a certificate.

## Declaration

```swift
struct SecTrustSettingsKeyUsage
```

## Topics

### Initializers

- [init(rawValue:)](security/sectrustsettingskeyusage/init(rawvalue:).md)

### Constants

- [useSignature](security/sectrustsettingskeyusage/usesignature.md)
- [useEnDecryptData](security/sectrustsettingskeyusage/useendecryptdata.md)
- [useEnDecryptKey](security/sectrustsettingskeyusage/useendecryptkey.md)
- [useSignCert](security/sectrustsettingskeyusage/usesigncert.md)
- [useSignRevocation](security/sectrustsettingskeyusage/usesignrevocation.md)
- [useKeyExchange](security/sectrustsettingskeyusage/usekeyexchange.md)
- [useAny](security/sectrustsettingskeyusage/useany.md)

## Relationships

### Conforms To

- [BitwiseCopyable](swift/bitwisecopyable.md)
- [Equatable](swift/equatable.md)
- [ExpressibleByArrayLiteral](swift/expressiblebyarrayliteral.md)
- [OptionSet](swift/optionset.md)
- [RawRepresentable](swift/rawrepresentable.md)
- [Sendable](swift/sendable.md)
- [SendableMetatype](swift/sendablemetatype.md)
- [SetAlgebra](swift/setalgebra.md)