Project import generated by Copybara.
PiperOrigin-RevId: 237361882
Change-Id: I109a68f44db867b20f8c6a7732b0ce657133e52a
diff --git a/quic/core/crypto/null_decrypter.h b/quic/core/crypto/null_decrypter.h
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+++ b/quic/core/crypto/null_decrypter.h
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+// 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.
+
+#ifndef QUICHE_QUIC_CORE_CRYPTO_NULL_DECRYPTER_H_
+#define QUICHE_QUIC_CORE_CRYPTO_NULL_DECRYPTER_H_
+
+#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 {
+ public:
+ 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;
+
+ private:
+ bool ReadHash(QuicDataReader* reader, QuicUint128* hash);
+ QuicUint128 ComputeHash(QuicStringPiece data1, QuicStringPiece data2) const;
+
+ Perspective perspective_;
+};
+
+} // namespace quic
+
+#endif // QUICHE_QUIC_CORE_CRYPTO_NULL_DECRYPTER_H_
