// Copied from https://www.w3.org/TR/webauthn/#idl-index as of 5 December 2017
[SecureContext, Exposed=Window]
interface PublicKeyCredential : Credential {
    [SameObject] readonly attribute ArrayBuffer              rawId;
    [SameObject] readonly attribute AuthenticatorResponse    response;
    AuthenticationExtensions getClientExtensionResults();
};

partial dictionary CredentialCreationOptions {
    MakePublicKeyCredentialOptions      publicKey;
};

partial dictionary CredentialRequestOptions {
    PublicKeyCredentialRequestOptions      publicKey;
};

partial interface PublicKeyCredential {
    static Promise < boolean > isUserVerifyingPlatformAuthenticatorAvailable();
};

[SecureContext, Exposed=Window]
interface AuthenticatorResponse {
    [SameObject] readonly attribute ArrayBuffer      clientDataJSON;
};

[SecureContext, Exposed=Window]
interface AuthenticatorAttestationResponse : AuthenticatorResponse {
    [SameObject] readonly attribute ArrayBuffer      attestationObject;
};

[SecureContext, Exposed=Window]
interface AuthenticatorAssertionResponse : AuthenticatorResponse {
    [SameObject] readonly attribute ArrayBuffer      authenticatorData;
    [SameObject] readonly attribute ArrayBuffer      signature;
    [SameObject] readonly attribute ArrayBuffer      userHandle;
};

dictionary PublicKeyCredentialParameters {
    required PublicKeyCredentialType      type;
    required COSEAlgorithmIdentifier      alg;
};

dictionary MakePublicKeyCredentialOptions {
    required PublicKeyCredentialRpEntity         rp;
    required PublicKeyCredentialUserEntity       user;

    required BufferSource                             challenge;
    required sequence<PublicKeyCredentialParameters>  pubKeyCredParams;

    unsigned long                                timeout;
    sequence<PublicKeyCredentialDescriptor>      excludeCredentials = [];
    AuthenticatorSelectionCriteria               authenticatorSelection;
    AttestationConveyancePreference              attestation = "none";
    AuthenticationExtensions                     extensions;
};

dictionary PublicKeyCredentialEntity {
    required DOMString    name;
    USVString             icon;
};

dictionary PublicKeyCredentialRpEntity : PublicKeyCredentialEntity {
    DOMString      id;
};

dictionary PublicKeyCredentialUserEntity : PublicKeyCredentialEntity {
    required BufferSource   id;
    required DOMString      displayName;
};

dictionary AuthenticatorSelectionCriteria {
    AuthenticatorAttachment      authenticatorAttachment;
    boolean                      requireResidentKey = false;
    UserVerificationRequirement  userVerification = "preferred";
};

enum AuthenticatorAttachment {
    "platform",       // Platform attachment
    "cross-platform"  // Cross-platform attachment
};

enum AttestationConveyancePreference {
    "none",
    "indirect",
    "direct"
};

dictionary PublicKeyCredentialRequestOptions {
    required BufferSource                challenge;
    unsigned long                        timeout;
    USVString                            rpId;
    sequence<PublicKeyCredentialDescriptor> allowCredentials = [];
    UserVerificationRequirement          userVerification = "preferred";
    AuthenticationExtensions             extensions;
};

typedef record<DOMString, any>       AuthenticationExtensions;

dictionary CollectedClientData {
    required DOMString           type;
    required DOMString           challenge;
    required DOMString           origin;
    required DOMString           hashAlgorithm;
    DOMString                    tokenBindingId;
    AuthenticationExtensions     clientExtensions;
    AuthenticationExtensions     authenticatorExtensions;
};

enum PublicKeyCredentialType {
    "public-key"
};

dictionary PublicKeyCredentialDescriptor {
    required PublicKeyCredentialType      type;
    required BufferSource                 id;
    sequence<AuthenticatorTransport>      transports;
};

enum AuthenticatorTransport {
    "usb",
    "nfc",
    "ble"
};

typedef long COSEAlgorithmIdentifier;

enum UserVerificationRequirement {
    "required",
    "preferred",
    "discouraged"
};

typedef sequence<AAGUID>      AuthenticatorSelectionList;

typedef BufferSource      AAGUID;