Refactor WebCrypto code

content/child/webcrypto/algorithm_dispatch.h

+// Copyright 2014 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_CHILD_WEBCRYPTO_ALGORITHM_DISPATCH_H_
+#define CONTENT_CHILD_WEBCRYPTO_ALGORITHM_DISPATCH_H_
+
+#include <vector>
+
+#include "base/basictypes.h"
+#include "base/memory/scoped_ptr.h"
+#include "content/common/content_export.h"
+#include "third_party/WebKit/public/platform/WebCrypto.h"
+
+namespace content {
+
+namespace webcrypto {
+
+class AlgorithmImplementation;
+class CryptoData;
+class Status;
+
+// These functions provide an entry point for synchronous webcrypto operations.
+//
+// The inputs to these methods come from Blink, and hence the validations done
+// by Blink can be assumed:
+//
+//   * The algorithm parameters are consistent with the algorithm
+//   * The key contains the required usage for the operation
+
+CONTENT_EXPORT Status Encrypt(const blink::WebCryptoAlgorithm& algorithm,
+                              const blink::WebCryptoKey& key,
+                              const CryptoData& data,
+                              std::vector<uint8>* buffer);
+
+CONTENT_EXPORT Status Decrypt(const blink::WebCryptoAlgorithm& algorithm,
+                              const blink::WebCryptoKey& key,
+                              const CryptoData& data,
+                              std::vector<uint8>* buffer);
+
+CONTENT_EXPORT Status Digest(const blink::WebCryptoAlgorithm& algorithm,
+                             const CryptoData& data,
+                             std::vector<uint8>* buffer);
+
+CONTENT_EXPORT Status
+    GenerateSecretKey(const blink::WebCryptoAlgorithm& algorithm,
+                      bool extractable,
+                      blink::WebCryptoKeyUsageMask usage_mask,
+                      blink::WebCryptoKey* key);
+
+CONTENT_EXPORT Status
+    GenerateKeyPair(const blink::WebCryptoAlgorithm& algorithm,
+                    bool extractable,
+                    blink::WebCryptoKeyUsageMask usage_mask,
+                    blink::WebCryptoKey* public_key,
+                    blink::WebCryptoKey* private_key);
+
+CONTENT_EXPORT Status ImportKey(blink::WebCryptoKeyFormat format,
+                                const CryptoData& key_data,
+                                const blink::WebCryptoAlgorithm& algorithm,
+                                bool extractable,
+                                blink::WebCryptoKeyUsageMask usage_mask,
+                                blink::WebCryptoKey* key);
+
+CONTENT_EXPORT Status ExportKey(blink::WebCryptoKeyFormat format,
+                                const blink::WebCryptoKey& key,
+                                std::vector<uint8>* buffer);
+
+CONTENT_EXPORT Status Sign(const blink::WebCryptoAlgorithm& algorithm,
+                           const blink::WebCryptoKey& key,
+                           const CryptoData& data,
+                           std::vector<uint8>* buffer);
+
+CONTENT_EXPORT Status Verify(const blink::WebCryptoAlgorithm& algorithm,
+                             const blink::WebCryptoKey& key,
+                             const CryptoData& signature,
+                             const CryptoData& data,
+                             bool* signature_match);
+
+CONTENT_EXPORT Status
+    WrapKey(blink::WebCryptoKeyFormat format,
+            const blink::WebCryptoKey& key_to_wrap,
+            const blink::WebCryptoKey& wrapping_key,
+            const blink::WebCryptoAlgorithm& wrapping_algorithm,
+            std::vector<uint8>* buffer);
+
+CONTENT_EXPORT Status
+    UnwrapKey(blink::WebCryptoKeyFormat format,
+              const CryptoData& wrapped_key_data,
+              const blink::WebCryptoKey& wrapping_key,
+              const blink::WebCryptoAlgorithm& wrapping_algorithm,
+              const blink::WebCryptoAlgorithm& algorithm,
+              bool extractable,
+              blink::WebCryptoKeyUsageMask usage_mask,
+              blink::WebCryptoKey* key);
+
+CONTENT_EXPORT scoped_ptr<blink::WebCryptoDigestor> CreateDigestor(
+    blink::WebCryptoAlgorithmId algorithm);
+
+}  // namespace webcrypto
+
+}  // namespace content
+
+#endif  // CONTENT_CHILD_WEBCRYPTO_ALGORITHM_DISPATCH_H_