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Side by Side Diff: net/quic/core/crypto/quic_encrypter.h

Issue 2681793002: Landing Recent QUIC changes until 5:30 PM, Feb 3, 2017 UTC-5 (Closed)
Patch Set: sync and rebase Created 3 years, 10 months ago
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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be 2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file. 3 // found in the LICENSE file.
4 4
5 #ifndef NET_QUIC_CORE_CRYPTO_QUIC_ENCRYPTER_H_ 5 #ifndef NET_QUIC_CORE_CRYPTO_QUIC_ENCRYPTER_H_
6 #define NET_QUIC_CORE_CRYPTO_QUIC_ENCRYPTER_H_ 6 #define NET_QUIC_CORE_CRYPTO_QUIC_ENCRYPTER_H_
7 7
8 #include <cstddef> 8 #include <cstddef>
9 9
10 #include "net/quic/core/quic_packets.h" 10 #include "net/quic/core/quic_packets.h"
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42 virtual bool SetNoncePrefix(base::StringPiece nonce_prefix) = 0; 42 virtual bool SetNoncePrefix(base::StringPiece nonce_prefix) = 0;
43 43
44 // Writes encrypted |plaintext| and a MAC over |plaintext| and 44 // Writes encrypted |plaintext| and a MAC over |plaintext| and
45 // |associated_data| into output. Sets |output_length| to the number of 45 // |associated_data| into output. Sets |output_length| to the number of
46 // bytes written. Returns true on success or false if there was an error. 46 // bytes written. Returns true on success or false if there was an error.
47 // |packet_number| is appended to the |nonce_prefix| value provided in 47 // |packet_number| is appended to the |nonce_prefix| value provided in
48 // SetNoncePrefix() to form the nonce. |output| must not overlap with 48 // SetNoncePrefix() to form the nonce. |output| must not overlap with
49 // |associated_data|. If |output| overlaps with |plaintext| then 49 // |associated_data|. If |output| overlaps with |plaintext| then
50 // |plaintext| must be <= |output|. 50 // |plaintext| must be <= |output|.
51 virtual bool EncryptPacket(QuicVersion version, 51 virtual bool EncryptPacket(QuicVersion version,
52 QuicPathId path_id,
53 QuicPacketNumber packet_number, 52 QuicPacketNumber packet_number,
54 base::StringPiece associated_data, 53 base::StringPiece associated_data,
55 base::StringPiece plaintext, 54 base::StringPiece plaintext,
56 char* output, 55 char* output,
57 size_t* output_length, 56 size_t* output_length,
58 size_t max_output_length) = 0; 57 size_t max_output_length) = 0;
59 58
60 // GetKeySize() and GetNoncePrefixSize() tell the HKDF class how many bytes 59 // GetKeySize() and GetNoncePrefixSize() tell the HKDF class how many bytes
61 // of key material needs to be derived from the master secret. 60 // of key material needs to be derived from the master secret.
62 // NOTE: the sizes returned by GetKeySize() and GetNoncePrefixSize() are 61 // NOTE: the sizes returned by GetKeySize() and GetNoncePrefixSize() are
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77 virtual size_t GetCiphertextSize(size_t plaintext_size) const = 0; 76 virtual size_t GetCiphertextSize(size_t plaintext_size) const = 0;
78 77
79 // For use by unit tests only. 78 // For use by unit tests only.
80 virtual base::StringPiece GetKey() const = 0; 79 virtual base::StringPiece GetKey() const = 0;
81 virtual base::StringPiece GetNoncePrefix() const = 0; 80 virtual base::StringPiece GetNoncePrefix() const = 0;
82 }; 81 };
83 82
84 } // namespace net 83 } // namespace net
85 84
86 #endif // NET_QUIC_CORE_CRYPTO_QUIC_ENCRYPTER_H_ 85 #endif // NET_QUIC_CORE_CRYPTO_QUIC_ENCRYPTER_H_
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