NMAOutOfBandRegistration

@objc
public protocol NMAOutOfBandRegistration : NMAHttpOperation

The operation handling an out-of-band registration. This is the object returned by the SDK, when an NMAOutOfBandPayload was processed and the NMAOutOfBandPayload corresponds to an registration operation.

Usage example:

@interface NMAAuthenticatorSelectorImpl : NSObject <NMAAuthenticatorSelector>

@end

@implementation NMAAuthenticatorSelectorImpl

- (void)selectAuthenticatorWithContext:(id<NMAAuthenticatorSelectionContext> _Nonnull)context handler:(id<NMAAuthenticatorSelectionHandler> _Nonnull)handler {
    [handler aaid:aaid];
}

@end

@interface NMABiometricUserVerifierImpl : NSObject <NMABiometricUserVerifier>

@end

@implementation NMABiometricUserVerifierImpl

- (void)verifyBiometricWithContext:(id<NMABiometricUserVerificationContext> _Nonnull)context handler:(id<NMABiometricUserVerificationHandler> _Nonnull)handler {
    [handler verify];
}

@end

@interface NMADevicePasscodeUserVerifierImpl : NSObject <NMADevicePasscodeUserVerifier>

@end

@implementation NMADevicePasscodeUserVerifierImpl

- (void)verifyDevicePasscodeWithContext:(id<NMADevicePasscodeUserVerificationContext> _Nonnull)context handler:(id<NMADevicePasscodeUserVerificationHandler> _Nonnull)handler {
    [handler verify];
}

@end

@interface NMAPinEnrollerImpl : NSObject<NMAPinEnroller>

@end

@implementation NMAPinEnrollerImpl

- (void)enrollPinWithContext:(id<NMAPinEnrollmentContext> _Nonnull)context handler:(id<NMAPinEnrollmentHandler> _Nonnull)handler {
    [handler pin:pin];
}

@end

@interface NMAPasswordEnrollerImpl : NSObject<NMAPasswordEnroller>

@end

@implementation NMAPasswordEnrollerImpl

- (void)enrollPasswordWithContext:(id<NMAPasswordEnrollmentContext> _Nonnull)context handler:(id<NMAPasswordEnrollmentHandler> _Nonnull)handler {
    [handler password:password];
}

@end

id<NMAOutOfBandOperation> oobOperation = [[client operations] outOfBandOperation];

[oobOperation payload:payload];
[oobOperation onRegistration:^(id<NMAOutOfBandRegistration> _Nonnull registration) {
    [registration deviceInformation:[[NMADeviceInformation alloc] initWithName:@"<Device name>" fcmRegistrationToken:@"<FCM token>"]];
    [registration authenticatorSelector:[[NMAAuthenticatorSelectorImpl alloc] init]];
    [registration biometricUserVerifier:[[NMABiometricUserVerifierImpl alloc] init]];
    [registration devicePasscodeUserVerifier:[[NMADevicePasscodeUserVerifierImpl alloc] init]];
    [registration pinEnroller:[[NMAPinEnrollerImpl alloc] init]];
    [registration passwordEnroller:[[NMAPasswordEnrollerImpl alloc] init]];
    [registration onSuccess:^{...}];
    [registration onError:^(NMAOperationError * _Nonnull error) {...}];
    [registration execute];
}];
[oobOperation onError:^(NMAOutOfBandOperationError * _Nonnull error) {...}];

[oobOperation execute];

The biometric and device Passcode authenticators are enrolled at the OS level. That is why, if one of them must be registered, the user must authenticate through NMABiometricUserVerifier or NMADevicePasscodeUserVerifier. In the case of the PIN and password, the credentials are enrolled during registration, so no verification is needed.

  • Specifies the device information to be used. The NMADeviceInformation is required only if you require support for encrypted out-of-band payloads or push notifications. If a NMADeviceInformation was already provided in an existing registration, the provided value will be ignored.

    Declaration

    Swift

    @discardableResult
    func deviceInformation(_ deviceInformation: NMADeviceInformation) -> NMAOutOfBandRegistration

    Parameters

    deviceInformation

    the device information.

    Return Value

    the NMAOutOfBandRegistration builder.

  • Specifies whether the OS device passcode can be used as fallback during biometric authentication. If not specified, the device passcode cannot be used as fallback.

    Declaration

    Swift

    @discardableResult
    func allowDevicePasscodeAsFallback(_ allowDevicePasscodeAsFallback: Bool) -> NMAOutOfBandRegistration

    Parameters

    allowDevicePasscodeAsFallback

    indicates whether the device passcode can be used as fallback.

    Return Value

    the NMAOutOfBandRegistration builder.

  • Specifies whether the authenticator must be invalidated if the user adds new biometric credentials in the OS settings. If the authenticator has been invalidated, and you try to authenticate with it, an error with code FidoErrorCode.keyDisappearedPermanently will be returned by the authentication operation.

    This setting only applies to faceRecognition (NMAAuthenticatorAaid.faceRecognition) and fingerprint (NMAAuthenticatorAaid.fingerprint) authenticators. By setting this parameter to true, you increase the security but there is a loss of convenience: adding a new OS biometric credential does not imply necessarily that there is a security risk, but if the end-user does it, a new registration will be required, because an invalidated authenticator cannot be recovered. If not specified, the authenticator will be invalidated when the user adds a new biometric credential in the OS settings.

    Declaration

    Swift

    @discardableResult
    func invalidateOnNewOsBiometrics(_ invalidateOnNewOsBiometrics: Bool) -> NMAOutOfBandRegistration

    Parameters

    invalidateOnNewOsBiometrics

    indicates whether an addition of biometric credentials in the OS should invalidate this authenticator (if the authenticator is Face ID or Touch ID)

    Return Value

    the NMAOutOfBandRegistration builder.

  • Specifies the object that will take care of the selection of the authenticator to be used.

    Important

    Providing the authenticator selector is required.

    Declaration

    Swift

    @discardableResult
    func authenticatorSelector(_ authenticatorSelector: NMAAuthenticatorSelector) -> NMAOutOfBandRegistration

    Parameters

    authenticatorSelector

    Return Value

    the NMAOutOfBandRegistration builder.

  • Specifies the object that will take care of the biometric user verification. It must be provided only if a biometric authenticator must be registered.

    Important

    Providing at least one of the NMABiometricUserVerifier, NMADevicePasscodeUserVerifier, NMAPinEnroller or NMAPasswordEnroller is required.

    Declaration

    Swift

    @discardableResult
    func biometricUserVerifier(_ biometricUserVerifier: NMABiometricUserVerifier) -> NMAOutOfBandRegistration

    Parameters

    biometricUserVerifier

    Return Value

    the NMAOutOfBandRegistration builder.

  • Specifies the object that will take care of the device passcode user verification.

    Important

    Providing at least one of the NMABiometricUserVerifier, NMADevicePasscodeUserVerifier, NMAPinEnroller or NMAPasswordEnroller is required.

    Declaration

    Swift

    @discardableResult
    func devicePasscodeUserVerifier(_ devicePasscodeUserVerifier: NMADevicePasscodeUserVerifier) -> NMAOutOfBandRegistration

    Parameters

    devicePasscodeUserVerifier

    Return Value

    the NMAOutOfBandRegistration builder.

  • Specifies the object that will take care of enrolling the PIN of the authenticator. It must be provided only if a PIN authenticator must be registered.

    Important

    Providing at least one of the NMABiometricUserVerifier, NMADevicePasscodeUserVerifier, NMAPinEnroller or NMAPasswordEnroller is required.

    Declaration

    Swift

    @discardableResult
    func pinEnroller(_ pinEnroller: NMAPinEnroller) -> NMAOutOfBandRegistration

    Parameters

    pinEnroller

    Return Value

    the NMAOutOfBandRegistration builder.

  • Specifies the object that will take care of enrolling the password of the authenticator. It must be provided only if a password authenticator must be registered.

    Important

    Providing at least one of the NMABiometricUserVerifier, NMADevicePasscodeUserVerifier, NMAPinEnroller or NMAPasswordEnroller is required.

    Declaration

    Swift

    @discardableResult
    func passwordEnroller(_ passwordEnroller: NMAPasswordEnroller) -> NMAOutOfBandRegistration

    Parameters

    passwordEnroller

    Return Value

    the NMAOutOfBandRegistration builder.

  • Specifies the block to execute if the registration was successful.

    Important

    Providing the onSuccess block is required.

    Declaration

    Swift

    @discardableResult
    func onSuccess(_ onSuccess: @escaping () -> ()) -> NMAOutOfBandRegistration

    Parameters

    onSuccess

    the block to execute on successful registration.

    Return Value

    the NMAOutOfBandRegistration builder.

  • Specifies the block to execute if the registration failed.

    Important

    Providing the onError block is required.

    Declaration

    Swift

    @discardableResult
    func onError(_ onError: @escaping (NMAOperationError) -> ()) -> NMAOutOfBandRegistration

    Parameters

    onError

    the block to execute on failed registration, receives an NMAOperationError.

    Return Value

    the NMAOutOfBandRegistration builder.