Implement verify() for HMAC using NSS

content/renderer/webcrypto_impl.h

 // 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.
 
 #ifndef CONTENT_RENDERER_WEBCRYPTO_IMPL_H_
 #define CONTENT_RENDERER_WEBCRYPTO_IMPL_H_
 
 #include "base/basictypes.h"
 #include "base/compiler_specific.h"
 #include "base/memory/scoped_ptr.h"
@@ skipping 19 matching lines @@
       const WebKit::WebCryptoAlgorithm& algorithm,
       bool extractable,
       WebKit::WebCryptoKeyUsageMask usage_mask,
       WebKit::WebCryptoResult result);
   virtual void sign(
       const WebKit::WebCryptoAlgorithm& algorithm,
       const WebKit::WebCryptoKey& key,
       const unsigned char* data,
       unsigned data_size,
       WebKit::WebCryptoResult result);
+  virtual void 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);
 
  protected:
   friend class WebCryptoImplTest;
 
   void Init();
 
   bool DigestInternal(
       const WebKit::WebCryptoAlgorithm& algorithm,
       const unsigned char* data,
       unsigned data_size,
       WebKit::WebArrayBuffer* buffer);
   bool ImportKeyInternal(
       WebKit::WebCryptoKeyFormat format,
       const unsigned char* key_data,
       unsigned key_data_size,
       const WebKit::WebCryptoAlgorithm& algorithm,
       WebKit::WebCryptoKeyUsageMask usage_mask,
       scoped_ptr<WebKit::WebCryptoKeyHandle>* handle,
       WebKit::WebCryptoKeyType* type);
   bool SignInternal(
       const WebKit::WebCryptoAlgorithm& algorithm,
       const WebKit::WebCryptoKey& key,
       const unsigned char* data,
       unsigned data_size,
       WebKit::WebArrayBuffer* buffer);
+  bool VerifySignatureInternal(
+      const WebKit::WebCryptoAlgorithm& algorithm,
+      const WebKit::WebCryptoKey& key,
+      const unsigned char* signature,
+      unsigned signature_size,
+      const unsigned char* data,
+      unsigned data_size,
+      bool* signature_match);
 
  private:
   DISALLOW_COPY_AND_ASSIGN(WebCryptoImpl);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_RENDERER_WEBCRYPTO_IMPL_H_