1 files changed, 60 insertions, 0 deletions
diff --git a/security/nss/lib/mozpkix/lib/pkixverify.cpp b/security/nss/lib/mozpkix/lib/pkixverify.cpp
new file mode 100644
index 0000000000..8cb58bf7de
--- /dev/null
+++ b/security/nss/lib/mozpkix/lib/pkixverify.cpp
@@ -0,0 +1,60 @@
+/* -*- 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 code is made available to you under your choice of the following sets
+ * of licensing terms:
+ */
+/* 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/.
+ */
+/* Copyright 2015 Mozilla Contributors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "mozpkix/pkixutil.h"
+
+namespace mozilla { namespace pkix {
+
+Result
+VerifySignedData(TrustDomain& trustDomain,
+                 const der::SignedDataWithSignature& signedData,
+                 Input signerSubjectPublicKeyInfo)
+{
+  der::PublicKeyAlgorithm publicKeyAlg;
+  DigestAlgorithm digestAlgorithm;
+  Reader signatureAlg(signedData.algorithm);
+  Result rv = der::SignatureAlgorithmIdentifierValue(
+                signatureAlg, publicKeyAlg, digestAlgorithm);
+  if (rv != Success) {
+    return rv;
+  }
+  if (!signatureAlg.AtEnd()) {
+    return Result::ERROR_BAD_DER;
+  }
+
+  switch (publicKeyAlg) {
+    case der::PublicKeyAlgorithm::ECDSA:
+      return trustDomain.VerifyECDSASignedData(signedData.data,
+          digestAlgorithm, signedData.signature, signerSubjectPublicKeyInfo);
+    case der::PublicKeyAlgorithm::RSA_PKCS1:
+      return trustDomain.VerifyRSAPKCS1SignedData(signedData.data,
+          digestAlgorithm, signedData.signature, signerSubjectPublicKeyInfo);
+    case der::PublicKeyAlgorithm::RSA_PSS:
+      return trustDomain.VerifyRSAPSSSignedData(signedData.data,
+          digestAlgorithm, signedData.signature, signerSubjectPublicKeyInfo);
+    MOZILLA_PKIX_UNREACHABLE_DEFAULT_ENUM
+  }
+}
+
+} } // namespace mozilla::pkix