---
title: ASCOSEAlgorithmIdentifier
framework: authenticationservices
role: symbol
role_heading: Structure
path: authenticationservices/ascosealgorithmidentifier
---

# ASCOSEAlgorithmIdentifier

An identifier for the algorithm that a credential’s key pair uses.

## Declaration

```swift
struct ASCOSEAlgorithmIdentifier
```

## Topics

### Creating the identifier

- [init(_:)](authenticationservices/ascosealgorithmidentifier/init(_:).md)
- [init(rawValue:)](authenticationservices/ascosealgorithmidentifier/init(rawvalue:).md)
- [ES256](authenticationservices/ascosealgorithmidentifier/es256.md)

## Relationships

### Conforms To

- [BitwiseCopyable](swift/bitwisecopyable.md)
- [Equatable](swift/equatable.md)
- [Hashable](swift/hashable.md)
- [RawRepresentable](swift/rawrepresentable.md)
- [Sendable](swift/sendable.md)
- [SendableMetatype](swift/sendablemetatype.md)

## See Also

### Request configuration

- [ASPublicKeyCredential](authenticationservices/aspublickeycredential.md)
- [ASAuthorizationPublicKeyCredentialParameters](authenticationservices/asauthorizationpublickeycredentialparameters.md)
- [ASCOSEEllipticCurveIdentifier](authenticationservices/ascoseellipticcurveidentifier.md)
- [ASAuthorizationPublicKeyCredentialAttestationKind](authenticationservices/asauthorizationpublickeycredentialattestationkind.md)
- [ASAuthorizationPublicKeyCredentialResidentKeyPreference](authenticationservices/asauthorizationpublickeycredentialresidentkeypreference.md)
- [ASAuthorizationPublicKeyCredentialUserVerificationPreference](authenticationservices/asauthorizationpublickeycredentialuserverificationpreference.md)
- [ASAuthorizationPublicKeyCredentialDescriptor](authenticationservices/asauthorizationpublickeycredentialdescriptor.md)
- [ASAuthorizationPlatformPublicKeyCredentialDescriptor](authenticationservices/asauthorizationplatformpublickeycredentialdescriptor.md)
- [ASAuthorizationSecurityKeyPublicKeyCredentialDescriptor](authenticationservices/asauthorizationsecuritykeypublickeycredentialdescriptor.md)
- [ASAuthorizationSecurityKeyPublicKeyCredentialDescriptor.Transport](authenticationservices/asauthorizationsecuritykeypublickeycredentialdescriptor/transport.md)
- [allSupported](authenticationservices/asauthorizationsecuritykeypublickeycredentialdescriptor/transport/allsupported.md)