---
title: "createCredentialRegistrationRequest(challenge:displayName:name:userID:)"
framework: authenticationservices
role: symbol
role_heading: Instance Method
path: "authenticationservices/asauthorizationsecuritykeypublickeycredentialprovider/createcredentialregistrationrequest(challenge:displayname:name:userid:)"
---

# createCredentialRegistrationRequest(challenge:displayName:name:userID:)

Creates a registration request with a challenge, display name, and user ID.

## Declaration

```swift
func createCredentialRegistrationRequest(challenge: Data, displayName: String, name: String, userID: Data) -> ASAuthorizationSecurityKeyPublicKeyCredentialRegistrationRequest
```

## Parameters

- `challenge`: A stream of bytes that the server provides to prove an authenticator is valid.
- `displayName`: The proper name of the user.
- `name`: The name of the user.
- `userID`: The user’s account identifier.

## Mentioned in

Supporting passkeys Supporting Security Key Authentication Using Physical Keys

## Return Value

Return Value A security key credential registration request.

## See Also

### Creating the request

- [relyingPartyIdentifier](authenticationservices/asauthorizationsecuritykeypublickeycredentialprovider/relyingpartyidentifier.md)
- [createCredentialAssertionRequest(challenge:)](authenticationservices/asauthorizationsecuritykeypublickeycredentialprovider/createcredentialassertionrequest(challenge:).md)