1 files changed, 65 insertions, 0 deletions
diff --git a/dom/webauthn/WebAuthnUtil.h b/dom/webauthn/WebAuthnUtil.h
new file mode 100644
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+++ b/dom/webauthn/WebAuthnUtil.h
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+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef mozilla_dom_WebAuthnUtil_h
+#define mozilla_dom_WebAuthnUtil_h
+
+/*
+ * Utility functions used by both WebAuthnManager and U2FTokenManager.
+ */
+
+#include "ipc/EnumSerializer.h"
+#include "mozilla/dom/CryptoBuffer.h"
+#include "mozilla/dom/WebAuthenticationBinding.h"
+#include "ipc/IPCMessageUtils.h"
+
+namespace mozilla::dom {
+
+enum class U2FOperation { Register, Sign };
+
+bool EvaluateAppID(nsPIDOMWindowInner* aParent, const nsString& aOrigin,
+                   /* in/out */ nsString& aAppId);
+
+nsresult AssembleAuthenticatorData(const CryptoBuffer& rpIdHashBuf,
+                                   const uint8_t flags,
+                                   const CryptoBuffer& counterBuf,
+                                   const CryptoBuffer& attestationDataBuf,
+                                   /* out */ CryptoBuffer& authDataBuf);
+
+nsresult AssembleAttestationObject(const CryptoBuffer& aRpIdHash,
+                                   const CryptoBuffer& aPubKeyBuf,
+                                   const CryptoBuffer& aKeyHandleBuf,
+                                   const CryptoBuffer& aAttestationCertBuf,
+                                   const CryptoBuffer& aSignatureBuf,
+                                   bool aForceNoneAttestation,
+                                   /* out */ CryptoBuffer& aAttestationObjBuf);
+
+nsresult U2FDecomposeSignResponse(const CryptoBuffer& aResponse,
+                                  /* out */ uint8_t& aFlags,
+                                  /* out */ CryptoBuffer& aCounterBuf,
+                                  /* out */ CryptoBuffer& aSignatureBuf);
+
+nsresult U2FDecomposeRegistrationResponse(
+    const CryptoBuffer& aResponse,
+    /* out */ CryptoBuffer& aPubKeyBuf,
+    /* out */ CryptoBuffer& aKeyHandleBuf,
+    /* out */ CryptoBuffer& aAttestationCertBuf,
+    /* out */ CryptoBuffer& aSignatureBuf);
+
+nsresult U2FDecomposeECKey(const CryptoBuffer& aPubKeyBuf,
+                           /* out */ CryptoBuffer& aXcoord,
+                           /* out */ CryptoBuffer& aYcoord);
+
+nsresult HashCString(const nsACString& aIn, /* out */ CryptoBuffer& aOut);
+
+nsresult BuildTransactionHashes(const nsCString& aRpId,
+                                const nsCString& aClientDataJSON,
+                                /* out */ CryptoBuffer& aRpIdHash,
+                                /* out */ CryptoBuffer& aClientDataHash);
+
+}  // namespace mozilla::dom
+
+#endif  // mozilla_dom_WebAuthnUtil_h