> ## Documentation Index
> Fetch the complete documentation index at: https://docs.crossmint.com/llms.txt
> Use this file to discover all available pages before exploring further.

# AuthenticatorSelectionCriteria

> Swift Structure

**Structure**

Specification reference: [https://w3c.github.io/webauthn/#dictionary-authenticatorSelection](https://w3c.github.io/webauthn/#dictionary-authenticatorSelection)

```swift theme={null}
struct AuthenticatorSelectionCriteria
```

## Initializers

### init(authenticatorAttachment:requireResidentKey:residentKey:userVerification:)

```swift theme={null}
init(authenticatorAttachment: AuthenticatorAttachment? = nil, requireResidentKey: Bool? = false, residentKey: ResidentKeyRequirement? = nil, userVerification: UserVerificationRequirement? = UserVerificationRequirement.preferred)
```

### init(from:)

Inherited from `Decodable.init(from:)`.

```swift theme={null}
init(from decoder: any Decoder) throws
```