> For the complete documentation index, see [llms.txt](https://docs.1kosmos.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.1kosmos.com/mobile-sdk/native/ios/api-reference/error-manager/passkey.md).

# Passkey

public struct Passkey

* Utility to manage Passkey error codes and messages.

### Error Codes

The table below lists license error codes and messages.

| Key                             | Code   | Message                                                                                                         |
| ------------------------------- | ------ | --------------------------------------------------------------------------------------------------------------- |
| iOS\_16\_REQUIRED               | 300001 | Passkeys are supported on iOS 16 and above. Please update your device to use this feature.                      |
| USERNAME\_EMPTY                 | 300002 | Username cannot be empty.                                                                                       |
| DISPLAY\_NAME\_EMPTY            | 300003 | Display name cannot be empty.                                                                                   |
| ATTESTATION\_OPTIONS\_FAILED    | 300004 | Passkey attestation options failed.                                                                             |
| ATTESTATION\_RESULT\_FAILED     | 300005 | Passkey attestation result failed.                                                                              |
| PASSKEY\_REGISTRATION\_FAILED   | 300006 | Passkey registration failed.                                                                                    |
| CANCELED                        | 300007 | User cancelled the operation.                                                                                   |
| INVALID                         | 300008 | Unable to create credential.                                                                                    |
| INVALID\_SIGNING                | 300009 | Unable to sign challenge.                                                                                       |
| UNSUPPORTED\_CREDENTIAL\_TYPE   | 300010 | Unsupported credential type returned by Credential Manager. Add handling for {error from os}                    |
| ASSERTION\_OPTIONS\_FAILED      | 300011 | Passkey assertion options failed.                                                                               |
| ASSERTION\_RESULT\_FAILED       | 300012 | Passkey assertion result failed.                                                                                |
| UNHANDLED\_CREDENTIAL\_TYPE     | 300013 | The authorization request wasn’t handled.                                                                       |
| NOT\_INTERACTIVE                | 300014 | Unable to create credential.                                                                                    |
| MATCHED\_EXCLUDED\_CREDENTIAL   | 300015 | At least one credential matches an entry of the excludeCredentials list in the platform attached authenticator. |
| LINKING\_FAILED                 | 300016 | Passkey linking failed                                                                                          |
| FETCH\_WALLET\_FAILED           | 300017 | Passkey wallet fetching failed.                                                                                 |
| PASSKEY\_AUTHENTICATION\_FAILED | 300018 | Passkey authentication failed.                                                                                  |


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