---
title: "attestKey(ofType:clientDataHash:)"
framework: authenticationservices
role: symbol
role_heading: Instance Method
path: "authenticationservices/asauthorizationproviderextensionloginmanager/attestkey(oftype:clientdatahash:)"
---

# attestKey(ofType:clientDataHash:)

## Declaration

```swift
func attestKey(ofType keyType: ASAuthorizationProviderExtensionKeyType, clientDataHash: Data) async throws -> [SecCertificate]
```