---
title: ASAuthorizationPlatformPublicKeyCredentialAssertionRequest
framework: authenticationservices
role: symbol
role_heading: Class
path: authenticationservices/asauthorizationplatformpublickeycredentialassertionrequest
---

# ASAuthorizationPlatformPublicKeyCredentialAssertionRequest

The concrete assertion request type for platform credentials.

## Declaration

```swift
class ASAuthorizationPlatformPublicKeyCredentialAssertionRequest
```

## Mentioned in

Supporting passkeys

## Overview

Overview Use this class to sign in with an existing credential that the system stores in iCloud Keychain.

## Topics

### Accessing request properties

- [allowedCredentials](authenticationservices/asauthorizationplatformpublickeycredentialassertionrequest/allowedcredentials.md)
- [largeBlob](authenticationservices/asauthorizationplatformpublickeycredentialassertionrequest/largeblob-9kvvl.md)
- [prf](authenticationservices/asauthorizationplatformpublickeycredentialassertionrequest/prf-47uoa.md)

## Relationships

### Inherits From

- [ASAuthorizationRequest](authenticationservices/asauthorizationrequest.md)

### Conforms To

- [ASAuthorizationPublicKeyCredentialAssertionRequest](authenticationservices/asauthorizationpublickeycredentialassertionrequest.md)
- [ASAuthorizationWebBrowserExternallyAuthenticatableRequest](authenticationservices/asauthorizationwebbrowserexternallyauthenticatablerequest.md)
- [ASAuthorizationWebBrowserPlatformPublicKeyCredentialAssertionRequest](authenticationservices/asauthorizationwebbrowserplatformpublickeycredentialassertionrequest.md)
- [CVarArg](swift/cvararg.md)
- [Copyable](swift/copyable.md)
- [CustomDebugStringConvertible](swift/customdebugstringconvertible.md)
- [CustomStringConvertible](swift/customstringconvertible.md)
- [Equatable](swift/equatable.md)
- [Escapable](swift/escapable.md)
- [Hashable](swift/hashable.md)
- [NSCoding](foundation/nscoding.md)
- [NSCopying](foundation/nscopying.md)
- [NSObjectProtocol](objectivec/nsobjectprotocol.md)
- [NSSecureCoding](foundation/nssecurecoding.md)
- [Sendable](swift/sendable.md)
- [SendableMetatype](swift/sendablemetatype.md)

## See Also

### Account authentication

- [ASAuthorizationPublicKeyCredentialAssertion](authenticationservices/asauthorizationpublickeycredentialassertion.md)
- [ASAuthorizationPlatformPublicKeyCredentialAssertion](authenticationservices/asauthorizationplatformpublickeycredentialassertion.md)
- [ASAuthorizationSecurityKeyPublicKeyCredentialAssertion](authenticationservices/asauthorizationsecuritykeypublickeycredentialassertion.md)
- [ASAuthorizationPublicKeyCredentialAssertionRequest](authenticationservices/asauthorizationpublickeycredentialassertionrequest.md)
- [ASAuthorizationSecurityKeyPublicKeyCredentialAssertionRequest](authenticationservices/asauthorizationsecuritykeypublickeycredentialassertionrequest.md)