Project import generated by Copybara.

PiperOrigin-RevId: 237361882
Change-Id: I109a68f44db867b20f8c6a7732b0ce657133e52a
diff --git a/quic/core/crypto/crypto_handshake.h b/quic/core/crypto/crypto_handshake.h
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+++ b/quic/core/crypto/crypto_handshake.h
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+// 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 QUICHE_QUIC_CORE_CRYPTO_CRYPTO_HANDSHAKE_H_
+#define QUICHE_QUIC_CORE_CRYPTO_CRYPTO_HANDSHAKE_H_
+
+#include <memory>
+#include <vector>
+
+#include "base/macros.h"
+#include "net/third_party/quiche/src/quic/core/quic_packets.h"
+#include "net/third_party/quiche/src/quic/platform/api/quic_export.h"
+#include "net/third_party/quiche/src/quic/platform/api/quic_string.h"
+
+namespace quic {
+
+class CommonCertSets;
+class KeyExchange;
+class QuicDecrypter;
+class QuicEncrypter;
+
+// HandshakeFailureReason enum values are uploaded to UMA, they cannot be
+// changed.
+enum HandshakeFailureReason {
+  HANDSHAKE_OK = 0,
+
+  // Failure reasons for an invalid client nonce in CHLO.
+  //
+  // The default error value for nonce verification failures from strike
+  // register (covers old strike registers and unknown failures).
+  CLIENT_NONCE_UNKNOWN_FAILURE = 1,
+  // Client nonce had incorrect length.
+  CLIENT_NONCE_INVALID_FAILURE = 2,
+  // Client nonce is not unique.
+  CLIENT_NONCE_NOT_UNIQUE_FAILURE = 3,
+  // Client orbit is invalid or incorrect.
+  CLIENT_NONCE_INVALID_ORBIT_FAILURE = 4,
+  // Client nonce's timestamp is not in the strike register's valid time range.
+  CLIENT_NONCE_INVALID_TIME_FAILURE = 5,
+  // Strike register's RPC call timed out, client nonce couldn't be verified.
+  CLIENT_NONCE_STRIKE_REGISTER_TIMEOUT = 6,
+  // Strike register is down, client nonce couldn't be verified.
+  CLIENT_NONCE_STRIKE_REGISTER_FAILURE = 7,
+
+  // Failure reasons for an invalid server nonce in CHLO.
+  //
+  // Unbox of server nonce failed.
+  SERVER_NONCE_DECRYPTION_FAILURE = 8,
+  // Decrypted server nonce had incorrect length.
+  SERVER_NONCE_INVALID_FAILURE = 9,
+  // Server nonce is not unique.
+  SERVER_NONCE_NOT_UNIQUE_FAILURE = 10,
+  // Server nonce's timestamp is not in the strike register's valid time range.
+  SERVER_NONCE_INVALID_TIME_FAILURE = 11,
+  // The server requires handshake confirmation.
+  SERVER_NONCE_REQUIRED_FAILURE = 20,
+
+  // Failure reasons for an invalid server config in CHLO.
+  //
+  // Missing Server config id (kSCID) tag.
+  SERVER_CONFIG_INCHOATE_HELLO_FAILURE = 12,
+  // Couldn't find the Server config id (kSCID).
+  SERVER_CONFIG_UNKNOWN_CONFIG_FAILURE = 13,
+
+  // Failure reasons for an invalid source-address token.
+  //
+  // Missing Source-address token (kSourceAddressTokenTag) tag.
+  SOURCE_ADDRESS_TOKEN_INVALID_FAILURE = 14,
+  // Unbox of Source-address token failed.
+  SOURCE_ADDRESS_TOKEN_DECRYPTION_FAILURE = 15,
+  // Couldn't parse the unbox'ed Source-address token.
+  SOURCE_ADDRESS_TOKEN_PARSE_FAILURE = 16,
+  // Source-address token is for a different IP address.
+  SOURCE_ADDRESS_TOKEN_DIFFERENT_IP_ADDRESS_FAILURE = 17,
+  // The source-address token has a timestamp in the future.
+  SOURCE_ADDRESS_TOKEN_CLOCK_SKEW_FAILURE = 18,
+  // The source-address token has expired.
+  SOURCE_ADDRESS_TOKEN_EXPIRED_FAILURE = 19,
+
+  // The expected leaf certificate hash could not be validated.
+  INVALID_EXPECTED_LEAF_CERTIFICATE = 21,
+
+  MAX_FAILURE_REASON = 22,
+};
+
+// These errors will be packed into an uint32_t and we don't want to set the
+// most significant bit, which may be misinterpreted as the sign bit.
+static_assert(MAX_FAILURE_REASON <= 32, "failure reason out of sync");
+
+// A CrypterPair contains the encrypter and decrypter for an encryption level.
+struct QUIC_EXPORT_PRIVATE CrypterPair {
+  CrypterPair();
+  ~CrypterPair();
+  std::unique_ptr<QuicEncrypter> encrypter;
+  std::unique_ptr<QuicDecrypter> decrypter;
+};
+
+// Parameters negotiated by the crypto handshake.
+struct QUIC_EXPORT_PRIVATE QuicCryptoNegotiatedParameters
+    : public QuicReferenceCounted {
+  // Initializes the members to 0 or empty values.
+  QuicCryptoNegotiatedParameters();
+
+  QuicTag key_exchange;
+  QuicTag aead;
+  QuicString initial_premaster_secret;
+  QuicString forward_secure_premaster_secret;
+  // initial_subkey_secret is used as the PRK input to the HKDF used when
+  // performing key extraction that needs to happen before forward-secure keys
+  // are available.
+  QuicString initial_subkey_secret;
+  // subkey_secret is used as the PRK input to the HKDF used for key extraction.
+  QuicString subkey_secret;
+  CrypterPair initial_crypters;
+  CrypterPair forward_secure_crypters;
+  // Normalized SNI: converted to lower case and trailing '.' removed.
+  QuicString sni;
+  QuicString client_nonce;
+  QuicString server_nonce;
+  // hkdf_input_suffix contains the HKDF input following the label: the
+  // ConnectionId, client hello and server config. This is only populated in the
+  // client because only the client needs to derive the forward secure keys at a
+  // later time from the initial keys.
+  QuicString hkdf_input_suffix;
+  // cached_certs contains the cached certificates that a client used when
+  // sending a client hello.
+  std::vector<QuicString> cached_certs;
+  // client_key_exchange is used by clients to store the ephemeral KeyExchange
+  // for the connection.
+  std::unique_ptr<KeyExchange> client_key_exchange;
+  // channel_id is set by servers to a ChannelID key when the client correctly
+  // proves possession of the corresponding private key. It consists of 32
+  // bytes of x coordinate, followed by 32 bytes of y coordinate. Both values
+  // are big-endian and the pair is a P-256 public key.
+  QuicString channel_id;
+  QuicTag token_binding_key_param;
+
+  // Used when generating proof signature when sending server config updates.
+
+  // Used to generate cert chain when sending server config updates.
+  QuicString client_common_set_hashes;
+  QuicString client_cached_cert_hashes;
+
+  // Default to false; set to true if the client indicates that it supports sct
+  // by sending CSCT tag with an empty value in client hello.
+  bool sct_supported_by_client;
+
+ protected:
+  ~QuicCryptoNegotiatedParameters() override;
+};
+
+// QuicCryptoConfig contains common configuration between clients and servers.
+class QUIC_EXPORT_PRIVATE QuicCryptoConfig {
+ public:
+  // kInitialLabel is a constant that is used when deriving the initial
+  // (non-forward secure) keys for the connection in order to tie the resulting
+  // key to this protocol.
+  static const char kInitialLabel[];
+
+  // kCETVLabel is a constant that is used when deriving the keys for the
+  // encrypted tag/value block in the client hello.
+  static const char kCETVLabel[];
+
+  // kForwardSecureLabel is a constant that is used when deriving the forward
+  // secure keys for the connection in order to tie the resulting key to this
+  // protocol.
+  static const char kForwardSecureLabel[];
+
+  QuicCryptoConfig();
+  QuicCryptoConfig(const QuicCryptoConfig&) = delete;
+  QuicCryptoConfig& operator=(const QuicCryptoConfig&) = delete;
+  ~QuicCryptoConfig();
+
+  // Key exchange methods. The following two members' values correspond by
+  // index.
+  QuicTagVector kexs;
+  // Authenticated encryption with associated data (AEAD) algorithms.
+  QuicTagVector aead;
+
+  // Supported Token Binding key parameters that can be negotiated in the client
+  // hello.
+  QuicTagVector tb_key_params;
+
+  const CommonCertSets* common_cert_sets;
+};
+
+}  // namespace quic
+
+#endif  // QUICHE_QUIC_CORE_CRYPTO_CRYPTO_HANDSHAKE_H_