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# ASAuthorizationSecurityKeyPublicKeyCredentialDescriptor.Transport

A structure that defines the security key credential transport type.

```
struct Transport
```

## Topics

### Creating the transport type

[`init(String)`](/documentation/AuthenticationServices/ASAuthorizationSecurityKeyPublicKeyCredentialDescriptor/Transport/init(_:))

Creates the object with a transport type.

[`init(rawValue: String)`](/documentation/AuthenticationServices/ASAuthorizationSecurityKeyPublicKeyCredentialDescriptor/Transport/init(rawValue:))

Creates the object with a preference.

### Getting the properties

[`static var allSupported: [ASAuthorizationSecurityKeyPublicKeyCredentialDescriptor.Transport]`](/documentation/AuthenticationServices/ASAuthorizationSecurityKeyPublicKeyCredentialDescriptor/Transport/allSupported)

An array of currently supported transport types.

[`static let bluetooth: ASAuthorizationSecurityKeyPublicKeyCredentialDescriptor.Transport`](/documentation/AuthenticationServices/ASAuthorizationSecurityKeyPublicKeyCredentialDescriptor/Transport/bluetooth)

The Bluetooth transport type.

[`static let nfc: ASAuthorizationSecurityKeyPublicKeyCredentialDescriptor.Transport`](/documentation/AuthenticationServices/ASAuthorizationSecurityKeyPublicKeyCredentialDescriptor/Transport/nfc)

The Near Field Communication transport type.

[`static let usb: ASAuthorizationSecurityKeyPublicKeyCredentialDescriptor.Transport`](/documentation/AuthenticationServices/ASAuthorizationSecurityKeyPublicKeyCredentialDescriptor/Transport/usb)

The USB transport type.

## Relationships

### Conforms To

[`RawRepresentable`](/documentation/Swift/RawRepresentable)

[`Hashable`](/documentation/Swift/Hashable)

[`Sendable`](/documentation/Swift/Sendable)

[`SendableMetatype`](/documentation/Swift/SendableMetatype)

[`Equatable`](/documentation/Swift/Equatable)

---

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