void
U2FTokenManager::Register(PWebAuthnTransactionParent* aTransactionParent,
const uint64_t& aTransactionId,
const WebAuthnMakeCredentialInfo& aTransactionInfo)
{
MOZ_LOG(gU2FTokenManagerLog, LogLevel::Debug, ("U2FAuthRegister"));
ClearTransaction();
mTransactionParent = aTransactionParent;
mTokenManagerImpl = GetTokenManagerImpl();
if (!mTokenManagerImpl) {
AbortTransaction(aTransactionId, NS_ERROR_DOM_NOT_ALLOWED_ERR);
return;
}
// Check if all the supplied parameters are syntactically well-formed and
// of the correct length. If not, return an error code equivalent to
// UnknownError and terminate the operation.
if ((aTransactionInfo.RpIdHash().Length() != SHA256_LENGTH) ||
(aTransactionInfo.ClientDataHash().Length() != SHA256_LENGTH)) {
AbortTransaction(aTransactionId, NS_ERROR_DOM_UNKNOWN_ERR);
return;
}
uint64_t tid = mLastTransactionId = aTransactionId;
mozilla::TimeStamp startTime = mozilla::TimeStamp::Now();
mTokenManagerImpl->Register(aTransactionInfo.ExcludeList(),
aTransactionInfo.AuthenticatorSelection(),
aTransactionInfo.RpIdHash(),
aTransactionInfo.ClientDataHash(),
aTransactionInfo.TimeoutMS())
->Then(GetCurrentThreadSerialEventTarget(), __func__,
[tid, startTime](U2FRegisterResult&& aResult) {
U2FTokenManager* mgr = U2FTokenManager::Get();
mgr->MaybeConfirmRegister(tid, aResult);
Telemetry::ScalarAdd(
Telemetry::ScalarID::SECURITY_WEBAUTHN_USED,
NS_LITERAL_STRING("U2FRegisterFinish"), 1);
Telemetry::AccumulateTimeDelta(
Telemetry::WEBAUTHN_CREATE_CREDENTIAL_MS,
startTime);
},
[tid](nsresult rv) {
MOZ_ASSERT(NS_FAILED(rv));
U2FTokenManager* mgr = U2FTokenManager::Get();
mgr->MaybeAbortRegister(tid, rv);
Telemetry::ScalarAdd(
Telemetry::ScalarID::SECURITY_WEBAUTHN_USED,
NS_LITERAL_STRING("U2FRegisterAbort"), 1);
})
->Track(mRegisterPromise);
}
void WinWebAuthnManager::Register(
PWebAuthnTransactionParent* aTransactionParent,
const uint64_t& aTransactionId, const WebAuthnMakeCredentialInfo& aInfo) {
MOZ_LOG(gWinWebAuthnManagerLog, LogLevel::Debug, ("WinWebAuthNRegister"));
ClearTransaction();
mTransactionParent = aTransactionParent;
BYTE U2FUserId = 0x01;
// RP Information
WEBAUTHN_RP_ENTITY_INFORMATION rpInfo = {
WEBAUTHN_RP_ENTITY_INFORMATION_CURRENT_VERSION, aInfo.RpId().get(),
nullptr, nullptr};
// User Information
WEBAUTHN_USER_ENTITY_INFORMATION userInfo = {
WEBAUTHN_USER_ENTITY_INFORMATION_CURRENT_VERSION,
0,
nullptr,
nullptr,
nullptr,
nullptr};
// Client Data
WEBAUTHN_CLIENT_DATA WebAuthNClientData = {
WEBAUTHN_CLIENT_DATA_CURRENT_VERSION, aInfo.ClientDataJSON().Length(),
(BYTE*)(aInfo.ClientDataJSON().get()), WEBAUTHN_HASH_ALGORITHM_SHA_256};
// Algorithms
nsTArray<WEBAUTHN_COSE_CREDENTIAL_PARAMETER> coseParams;
// User Verification Requirement
DWORD winUserVerificationReq = WEBAUTHN_USER_VERIFICATION_REQUIREMENT_ANY;
// Attachment
DWORD winAttachment = WEBAUTHN_AUTHENTICATOR_ATTACHMENT_ANY;
// Resident Key
BOOL winRequireResidentKey = FALSE;
// AttestationConveyance
DWORD winAttestation = WEBAUTHN_ATTESTATION_CONVEYANCE_PREFERENCE_ANY;
if (aInfo.Extra().type() ==
WebAuthnMaybeMakeCredentialExtraInfo::TWebAuthnMakeCredentialExtraInfo) {
const auto& extra = aInfo.Extra().get_WebAuthnMakeCredentialExtraInfo();
rpInfo.pwszName = extra.Rp().Name().get();
rpInfo.pwszIcon = extra.Rp().Icon().get();
userInfo.cbId = static_cast<DWORD>(extra.User().Id().Length());
userInfo.pbId = const_cast<unsigned char*>(extra.User().Id().Elements());
userInfo.pwszName = extra.User().Name().get();
userInfo.pwszIcon = extra.User().Icon().get();
userInfo.pwszDisplayName = extra.User().DisplayName().get();
for (const auto& coseAlg : extra.coseAlgs()) {
WEBAUTHN_COSE_CREDENTIAL_PARAMETER coseAlgorithm = {
WEBAUTHN_COSE_CREDENTIAL_PARAMETER_CURRENT_VERSION,
WEBAUTHN_CREDENTIAL_TYPE_PUBLIC_KEY, coseAlg.alg()};
coseParams.AppendElement(coseAlgorithm);
}
const auto& sel = extra.AuthenticatorSelection();
UserVerificationRequirement userVerificationReq =
static_cast<UserVerificationRequirement>(
sel.userVerificationRequirement());
switch (userVerificationReq) {
case UserVerificationRequirement::Required:
winUserVerificationReq =
WEBAUTHN_USER_VERIFICATION_REQUIREMENT_REQUIRED;
break;
case UserVerificationRequirement::Preferred:
winUserVerificationReq =
WEBAUTHN_USER_VERIFICATION_REQUIREMENT_PREFERRED;
break;
case UserVerificationRequirement::Discouraged:
winUserVerificationReq =
WEBAUTHN_USER_VERIFICATION_REQUIREMENT_DISCOURAGED;
break;
default:
winUserVerificationReq = WEBAUTHN_USER_VERIFICATION_REQUIREMENT_ANY;
break;
}
if (sel.authenticatorAttachment().type() ==
WebAuthnMaybeAuthenticatorAttachment::Tuint8_t) {
const AuthenticatorAttachment authenticatorAttachment =
static_cast<AuthenticatorAttachment>(
sel.authenticatorAttachment().get_uint8_t());
switch (authenticatorAttachment) {
case AuthenticatorAttachment::Platform:
winAttachment = WEBAUTHN_AUTHENTICATOR_ATTACHMENT_PLATFORM;
break;
case AuthenticatorAttachment::Cross_platform:
winAttachment = WEBAUTHN_AUTHENTICATOR_ATTACHMENT_CROSS_PLATFORM;
break;
default:
break;
}
}
winRequireResidentKey = sel.requireResidentKey();
// AttestationConveyance
AttestationConveyancePreference attestation =
static_cast<AttestationConveyancePreference>(
extra.attestationConveyancePreference());
DWORD winAttestation = WEBAUTHN_ATTESTATION_CONVEYANCE_PREFERENCE_ANY;
switch (attestation) {
case AttestationConveyancePreference::Direct:
winAttestation = WEBAUTHN_ATTESTATION_CONVEYANCE_PREFERENCE_DIRECT;
break;
case AttestationConveyancePreference::Indirect:
winAttestation = WEBAUTHN_ATTESTATION_CONVEYANCE_PREFERENCE_INDIRECT;
break;
case AttestationConveyancePreference::None:
winAttestation = WEBAUTHN_ATTESTATION_CONVEYANCE_PREFERENCE_NONE;
break;
default:
winAttestation = WEBAUTHN_ATTESTATION_CONVEYANCE_PREFERENCE_ANY;
break;
}
} else {
userInfo.cbId = sizeof(BYTE);
userInfo.pbId = &U2FUserId;
WEBAUTHN_COSE_CREDENTIAL_PARAMETER coseAlgorithm = {
WEBAUTHN_COSE_CREDENTIAL_PARAMETER_CURRENT_VERSION,
WEBAUTHN_CREDENTIAL_TYPE_PUBLIC_KEY,
WEBAUTHN_COSE_ALGORITHM_ECDSA_P256_WITH_SHA256};
coseParams.AppendElement(coseAlgorithm);
winAttachment = WEBAUTHN_AUTHENTICATOR_ATTACHMENT_CROSS_PLATFORM_U2F_V2;
}
WEBAUTHN_COSE_CREDENTIAL_PARAMETERS WebAuthNCredentialParameters = {
static_cast<DWORD>(coseParams.Length()), coseParams.Elements()};
// Exclude Credentials
nsTArray<WEBAUTHN_CREDENTIAL_EX> excludeCredentials;
WEBAUTHN_CREDENTIAL_EX* pExcludeCredentials = nullptr;
nsTArray<WEBAUTHN_CREDENTIAL_EX*> excludeCredentialsPtrs;
WEBAUTHN_CREDENTIAL_LIST excludeCredentialList = {0};
WEBAUTHN_CREDENTIAL_LIST* pExcludeCredentialList = nullptr;
for (auto& cred : aInfo.ExcludeList()) {
uint8_t transports = cred.transports();
DWORD winTransports = 0;
if (transports & U2F_AUTHENTICATOR_TRANSPORT_USB) {
winTransports |= WEBAUTHN_CTAP_TRANSPORT_USB;
}
if (transports & U2F_AUTHENTICATOR_TRANSPORT_NFC) {
winTransports |= WEBAUTHN_CTAP_TRANSPORT_NFC;
}
if (transports & U2F_AUTHENTICATOR_TRANSPORT_BLE) {
winTransports |= WEBAUTHN_CTAP_TRANSPORT_BLE;
}
if (transports & CTAP_AUTHENTICATOR_TRANSPORT_INTERNAL) {
winTransports |= WEBAUTHN_CTAP_TRANSPORT_INTERNAL;
}
WEBAUTHN_CREDENTIAL_EX credential = {
WEBAUTHN_CREDENTIAL_EX_CURRENT_VERSION,
static_cast<DWORD>(cred.id().Length()), (PBYTE)(cred.id().Elements()),
WEBAUTHN_CREDENTIAL_TYPE_PUBLIC_KEY, winTransports};
excludeCredentials.AppendElement(credential);
}
if (!excludeCredentials.IsEmpty()) {
pExcludeCredentials = excludeCredentials.Elements();
for (DWORD i = 0; i < excludeCredentials.Length(); i++) {
excludeCredentialsPtrs.AppendElement(&pExcludeCredentials[i]);
}
excludeCredentialList.cCredentials = excludeCredentials.Length();
excludeCredentialList.ppCredentials = excludeCredentialsPtrs.Elements();
pExcludeCredentialList = &excludeCredentialList;
}
// MakeCredentialOptions
WEBAUTHN_AUTHENTICATOR_MAKE_CREDENTIAL_OPTIONS WebAuthNCredentialOptions = {
WEBAUTHN_AUTHENTICATOR_MAKE_CREDENTIAL_OPTIONS_CURRENT_VERSION,
aInfo.TimeoutMS(),
{0, NULL},
{0, NULL},
winAttachment,
winRequireResidentKey,
winUserVerificationReq,
winAttestation,
0, // Flags
NULL, // CancellationId
pExcludeCredentialList};
GUID cancellationId = {0};
if (gWinWebauthnGetCancellationId(&cancellationId) == S_OK) {
WebAuthNCredentialOptions.pCancellationId = &cancellationId;
mCancellationIds.emplace(aTransactionId, &cancellationId);
}
WEBAUTHN_CREDENTIAL_ATTESTATION* pWebAuthNCredentialAttestation = nullptr;
// Bug 1518876: Get Window Handle from Content process for Windows WebAuthN
// APIs
HWND hWnd = GetForegroundWindow();
HRESULT hr = gWinWebauthnMakeCredential(
hWnd, &rpInfo, &userInfo, &WebAuthNCredentialParameters,
&WebAuthNClientData, &WebAuthNCredentialOptions,
&pWebAuthNCredentialAttestation);
mCancellationIds.erase(aTransactionId);
if (hr == S_OK) {
nsTArray<uint8_t> attObject;
attObject.AppendElements(
pWebAuthNCredentialAttestation->pbAttestationObject,
pWebAuthNCredentialAttestation->cbAttestationObject);
nsTArray<uint8_t> credentialId;
credentialId.AppendElements(pWebAuthNCredentialAttestation->pbCredentialId,
pWebAuthNCredentialAttestation->cbCredentialId);
nsTArray<uint8_t> authenticatorData;
if (aInfo.Extra().type() == WebAuthnMaybeMakeCredentialExtraInfo::
TWebAuthnMakeCredentialExtraInfo) {
authenticatorData.AppendElements(
pWebAuthNCredentialAttestation->pbAuthenticatorData,
pWebAuthNCredentialAttestation->cbAuthenticatorData);
} else {
PWEBAUTHN_COMMON_ATTESTATION attestation =
reinterpret_cast<PWEBAUTHN_COMMON_ATTESTATION>(
pWebAuthNCredentialAttestation->pvAttestationDecode);
DWORD coseKeyOffset = 32 + // RPIDHash
1 + // Flags
4 + // Counter
16 + // AAGuid
2 + // Credential ID Length field
pWebAuthNCredentialAttestation->cbCredentialId;
// Hardcoding as couldn't finder decoder and it is an ECC key.
DWORD xOffset = coseKeyOffset + 10;
DWORD yOffset = coseKeyOffset + 45;
// Authenticator Data length check.
if (pWebAuthNCredentialAttestation->cbAuthenticatorData < yOffset + 32) {
MaybeAbortRegister(aTransactionId, NS_ERROR_DOM_INVALID_STATE_ERR);
}
authenticatorData.AppendElement(0x05); // Reserved Byte
authenticatorData.AppendElement(0x04); // ECC Uncompressed Key
authenticatorData.AppendElements(
pWebAuthNCredentialAttestation->pbAuthenticatorData + xOffset,
32); // X Coordinate
authenticatorData.AppendElements(
pWebAuthNCredentialAttestation->pbAuthenticatorData + yOffset,
32); // Y Coordinate
authenticatorData.AppendElement(
pWebAuthNCredentialAttestation->cbCredentialId);
authenticatorData.AppendElements(
pWebAuthNCredentialAttestation->pbCredentialId,
pWebAuthNCredentialAttestation->cbCredentialId);
authenticatorData.AppendElements(attestation->pX5c->pbData,
attestation->pX5c->cbData);
authenticatorData.AppendElements(attestation->pbSignature,
attestation->cbSignature);
}
WebAuthnMakeCredentialResult result(aInfo.ClientDataJSON(), attObject,
credentialId, authenticatorData);
Unused << mTransactionParent->SendConfirmRegister(aTransactionId, result);
ClearTransaction();
gWinWebauthnFreeCredentialAttestation(pWebAuthNCredentialAttestation);
} else {
PCWSTR errorName = gWinWebauthnGetErrorName(hr);
nsresult aError = NS_ERROR_DOM_ABORT_ERR;
if (_wcsicmp(errorName, L"InvalidStateError") == 0) {
aError = NS_ERROR_DOM_INVALID_STATE_ERR;
} else if (_wcsicmp(errorName, L"ConstraintError") == 0 ||
_wcsicmp(errorName, L"UnknownError") == 0) {
aError = NS_ERROR_DOM_UNKNOWN_ERR;
} else if (_wcsicmp(errorName, L"NotSupportedError") == 0) {
aError = NS_ERROR_DOM_INVALID_STATE_ERR;
} else if (_wcsicmp(errorName, L"NotAllowedError") == 0) {
aError = NS_ERROR_DOM_NOT_ALLOWED_ERR;
}
MaybeAbortRegister(aTransactionId, aError);
}
}