blob: 83819877549088e050ca2212978a2354c40a7e19 [file] [log] [blame]
// Copyright (c) 2012 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.
#include <cstddef>
#include <cstdint>
#include "base/macros.h"
#include "net/third_party/quiche/src/quic/core/crypto/quic_decrypter.h"
#include "net/third_party/quiche/src/quic/core/quic_types.h"
#include "net/third_party/quiche/src/quic/platform/api/quic_export.h"
#include "net/third_party/quiche/src/quic/platform/api/quic_string_piece.h"
#include "net/third_party/quiche/src/quic/platform/api/quic_uint128.h"
namespace quic {
class QuicDataReader;
// A NullDecrypter is a QuicDecrypter used before a crypto negotiation
// has occurred. It does not actually decrypt the payload, but does
// verify a hash (fnv128) over both the payload and associated data.
class QUIC_EXPORT_PRIVATE NullDecrypter : public QuicDecrypter {
explicit NullDecrypter(Perspective perspective);
NullDecrypter(const NullDecrypter&) = delete;
NullDecrypter& operator=(const NullDecrypter&) = delete;
~NullDecrypter() override {}
// QuicDecrypter implementation
bool SetKey(QuicStringPiece key) override;
bool SetNoncePrefix(QuicStringPiece nonce_prefix) override;
bool SetIV(QuicStringPiece iv) override;
bool SetPreliminaryKey(QuicStringPiece key) override;
bool SetDiversificationNonce(const DiversificationNonce& nonce) override;
bool DecryptPacket(uint64_t packet_number,
QuicStringPiece associated_data,
QuicStringPiece ciphertext,
char* output,
size_t* output_length,
size_t max_output_length) override;
size_t GetKeySize() const override;
size_t GetIVSize() const override;
QuicStringPiece GetKey() const override;
QuicStringPiece GetNoncePrefix() const override;
uint32_t cipher_id() const override;
bool ReadHash(QuicDataReader* reader, QuicUint128* hash);
QuicUint128 ComputeHash(QuicStringPiece data1, QuicStringPiece data2) const;
Perspective perspective_;
} // namespace quic