---
title: clientDataHash
framework: authenticationservices
role: symbol
role_heading: Instance Property
path: authenticationservices/aspasskeyregistrationcredential/clientdatahash
---

# clientDataHash

A hash of the client data for this credential.

## Declaration

```swift
var clientDataHash: Data { get }
```

## See Also

### Accessing credential information

- [attestationObject](authenticationservices/aspasskeyregistrationcredential/attestationobject.md)
- [credentialID](authenticationservices/aspasskeyregistrationcredential/credentialid.md)
- [relyingParty](authenticationservices/aspasskeyregistrationcredential/relyingparty.md)