Revert of Implement authenticator based on SPAKE2 implementation in boringssl.

remoting/protocol/spake2_authenticator.h

Index: remoting/protocol/spake2_authenticator.h
diff --git a/remoting/protocol/spake2_authenticator.h b/remoting/protocol/spake2_authenticator.h
deleted file mode 100644
index b16d634d6caf7ff47b6fabf5d5eda84fda6ede4a..0000000000000000000000000000000000000000
--- a/remoting/protocol/spake2_authenticator.h
+++ /dev/null
@@ -1,99 +0,0 @@
-// Copyright 2016 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 REMOTING_PROTOCOL_SPAKE2_AUTHENTICATOR_H_
-#define REMOTING_PROTOCOL_SPAKE2_AUTHENTICATOR_H_
-
-#include <queue>
-#include <string>
-
-#include "base/compiler_specific.h"
-#include "base/gtest_prod_util.h"
-#include "base/macros.h"
-#include "base/memory/scoped_ptr.h"
-#include "remoting/protocol/authenticator.h"
-
-typedef struct spake2_ctx_st SPAKE2_CTX;
-
-namespace remoting {
-
-class RsaKeyPair;
-
-namespace protocol {
-
-// Authenticator that uses SPAKE2 implementation from BoringSSL. It
-// implements SPAKE2 over Curve25519.
-class Spake2Authenticator : public Authenticator {
- public:
-  static scoped_ptr<Authenticator> CreateForClient(
-      const std::string& local_id,
-      const std::string& remote_id,
-      const std::string& shared_secret,
-      State initial_state);
-
-  static scoped_ptr<Authenticator> CreateForHost(
-      const std::string& local_id,
-      const std::string& remote_id,
-      const std::string& shared_secret,
-      const std::string& local_cert,
-      scoped_refptr<RsaKeyPair> key_pair,
-      State initial_state);
-
-  ~Spake2Authenticator() override;
-
-  // Authenticator interface.
-  State state() const override;
-  bool started() const override;
-  RejectionReason rejection_reason() const override;
-  void ProcessMessage(const buzz::XmlElement* message,
-                      const base::Closure& resume_callback) override;
-  scoped_ptr<buzz::XmlElement> GetNextMessage() override;
-  const std::string& GetAuthKey() const override;
-  scoped_ptr<ChannelAuthenticator> CreateChannelAuthenticator() const override;
-
- private:
-  FRIEND_TEST_ALL_PREFIXES(Spake2AuthenticatorTest, InvalidSecret);
-
-  Spake2Authenticator(const std::string& local_id,
-                      const std::string& remote_id,
-                      const std::string& shared_secret,
-                      bool is_host,
-                      State initial_state);
-
-  virtual void ProcessMessageInternal(const buzz::XmlElement* message);
-
-  std::string CalculateVerificationHash(bool from_host,
-                                        const std::string& local_id,
-                                        const std::string& remote_id);
-
-  const std::string local_id_;
-  const std::string remote_id_;
-  const std::string shared_secret_;
-  const bool is_host_;
-
-  // Used only for host authenticators.
-  std::string local_cert_;
-  scoped_refptr<RsaKeyPair> local_key_pair_;
-
-  // Used only for client authenticators.
-  std::string remote_cert_;
-
-  // Used for both host and client authenticators.
-  SPAKE2_CTX* spake2_context_;
-  State state_;
-  bool started_ = false;
-  RejectionReason rejection_reason_ = INVALID_CREDENTIALS;
-  std::string local_spake_message_;
-  bool spake_message_sent_ = false;
-  std::string outgoing_verification_hash_;
-  std::string auth_key_;
-  std::string expected_verification_hash_;
-
-  DISALLOW_COPY_AND_ASSIGN(Spake2Authenticator);
-};
-
-}  // namespace protocol
-}  // namespace remoting
-
-#endif  // REMOTING_PROTOCOL_SPAKE2_AUTHENTICATOR_H_