Implement verify() for HMAC using NSS

content/renderer/webcrypto_impl.cc

 // Copyright (c) 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "content/renderer/webcrypto_impl.h"
 
 #include "base/memory/scoped_ptr.h"
 #include "third_party/WebKit/public/platform/WebArrayBuffer.h"
 #include "third_party/WebKit/public/platform/WebCryptoAlgorithm.h"
 #include "third_party/WebKit/public/platform/WebCryptoKey.h"
@@ skipping 53 matching lines @@
     unsigned data_size,
     WebKit::WebCryptoResult result) {
   WebKit::WebArrayBuffer buffer;
   if (!SignInternal(algorithm, key, data, data_size, &buffer)) {
     result.completeWithError();
   } else {
     result.completeWithBuffer(buffer);
   }
 }
 
+void WebCryptoImpl::verifySignature(
+    const WebKit::WebCryptoAlgorithm& algorithm,
+    const WebKit::WebCryptoKey& key,
+    const unsigned char* signature,
+    unsigned signature_size,
+    const unsigned char* data,
+    unsigned data_size,
+    WebKit::WebCryptoResult result) {
+  bool signature_match = false;
+  if (!VerifySignatureInternal(algorithm,
+                               key,
+                               signature,
+                               signature_size,
+                               data,
+                               data_size,
+                               &signature_match)) {
+    result.completeWithError();
+  } else {
+    result.completeWithBoolean(signature_match);
+  }
+}
+
 }  // namespace content