Implement Networking Private API VerifyAndEncryptCredentials method

chrome/browser/extensions/api/networking_private/networking_private_crypto.h

-// Copyright 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 CHROME_BROWSER_EXTENSIONS_API_NETWORKING_PRIVATE_NETWORKING_PRIVATE_CRYPTO_H_
-#define CHROME_BROWSER_EXTENSIONS_API_NETWORKING_PRIVATE_NETWORKING_PRIVATE_CRYPTO_H_
-
-#include <string>
-#include "base/basictypes.h"
-
-// Implementation of Crypto support for networking private API.
-// Based on chromeos_public//src/platform/shill/shims/crypto_util.cc
-class NetworkingPrivateCrypto {
- public:
-  NetworkingPrivateCrypto();
-  ~NetworkingPrivateCrypto();
-
-  // Verify that credentials described by |certificate| and |signed_data| are
-  // valid.
-  //
-  // 1) The MAC address listed in the certificate matches |connected_mac|.
-  // 2) The certificate is a valid PEM encoded certificate signed by trusted CA.
-  // 3) |signature| is a valid signature for |data|, using the public key in
-  // |certificate|
-  bool VerifyCredentials(const std::string& certificate,
-                         const std::string& signature,
-                         const std::string& data,
-                         const std::string& connected_mac);
-
-  // Encrypt |data| with |public_key|. |public_key| is a DER-encoded
-  // RSAPublicKey. |data| is some string of bytes that is smaller than the
-  // maximum length permissible for PKCS#1 v1.5 with a key of |public_key| size.
-  //
-  // Returns true on success, storing the encrypted result in
-  // |encrypted_output|.
-  bool EncryptByteString(const std::string& public_key,
-                         const std::string& data,
-                         std::string* encrypted_output);
-
- private:
-  friend class NetworkingPrivateCryptoTest;
-
-  // Decrypt |encrypted_data| with |private_key_pem|. |private_key_pem| is the
-  // PKCS8 PEM-encoded private key. |encrypted_data| is data encrypted with
-  // EncryptByteString. Used in NetworkingPrivateCryptoTest::EncryptString test.
-  //
-  // Returns true on success, storing the decrypted result in
-  // |decrypted_output|.
-  bool DecryptByteString(const std::string& private_key_pem,
-                         const std::string& encrypted_data,
-                         std::string* decrypted_output);
-
-  DISALLOW_COPY_AND_ASSIGN(NetworkingPrivateCrypto);
-};
-
-#endif  // CHROME_BROWSER_EXTENSIONS_API_NETWORKING_PRIVATE_NETWORKING_PRIVATE_CRYPTO_H_
-