Move shared files in net/quic/ into net/quic/core/

net/quic/crypto/p256_key_exchange.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 NET_QUIC_CRYPTO_P256_KEY_EXCHANGE_H_
-#define NET_QUIC_CRYPTO_P256_KEY_EXCHANGE_H_
-
-#include <stdint.h>
-
-#include <memory>
-#include <string>
-
-#include "base/macros.h"
-#include "base/strings/string_piece.h"
-#include "crypto/openssl_util.h"
-#include "crypto/scoped_openssl_types.h"
-#include "net/base/net_export.h"
-#include "net/quic/crypto/key_exchange.h"
-
-
-namespace net {
-
-// P256KeyExchange implements a KeyExchange using elliptic-curve
-// Diffie-Hellman on NIST P-256.
-class NET_EXPORT_PRIVATE P256KeyExchange : public KeyExchange {
- public:
-  ~P256KeyExchange() override;
-
-  // New creates a new key exchange object from a private key. If
-  // |private_key| is invalid, nullptr is returned.
-  static P256KeyExchange* New(base::StringPiece private_key);
-
-  // |NewPrivateKey| returns a private key, suitable for passing to |New|.
-  // If |NewPrivateKey| can't generate a private key, it returns an empty
-  // string.
-  static std::string NewPrivateKey();
-
-  // KeyExchange interface.
-  KeyExchange* NewKeyPair(QuicRandom* rand) const override;
-  bool CalculateSharedKey(base::StringPiece peer_public_value,
-                          std::string* shared_key) const override;
-  base::StringPiece public_value() const override;
-  QuicTag tag() const override;
-
- private:
-  enum {
-    // A P-256 field element consists of 32 bytes.
-    kP256FieldBytes = 32,
-    // A P-256 point in uncompressed form consists of 0x04 (to denote
-    // that the point is uncompressed) followed by two, 32-byte field
-    // elements.
-    kUncompressedP256PointBytes = 1 + 2 * kP256FieldBytes,
-    // The first byte in an uncompressed P-256 point.
-    kUncompressedECPointForm = 0x04,
-  };
-
-  // P256KeyExchange takes ownership of |private_key|, and expects
-  // |public_key| consists of |kUncompressedP256PointBytes| bytes.
-  P256KeyExchange(EC_KEY* private_key, const uint8_t* public_key);
-
-  crypto::ScopedEC_KEY private_key_;
-  // The public key stored as an uncompressed P-256 point.
-  uint8_t public_key_[kUncompressedP256PointBytes];
-
-  DISALLOW_COPY_AND_ASSIGN(P256KeyExchange);
-};
-
-}  // namespace net
-#endif  // NET_QUIC_CRYPTO_P256_KEY_EXCHANGE_H_