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Side by Side Diff: net/quic/crypto/aead_base_decrypter.h

Issue 935333002: Update from https://crrev.com/316786 (Closed) Base URL: git@github.com:domokit/mojo.git@master
Patch Set: Created 5 years, 10 months ago
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1 // Copyright (c) 2013 The Chromium Authors. All rights reserved. 1 // Copyright (c) 2013 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_CRYPTO_AEAD_BASE_DECRYPTER_H_ 5 #ifndef NET_QUIC_CRYPTO_AEAD_BASE_DECRYPTER_H_
6 #define NET_QUIC_CRYPTO_AEAD_BASE_DECRYPTER_H_ 6 #define NET_QUIC_CRYPTO_AEAD_BASE_DECRYPTER_H_
7 7
8 #include "base/compiler_specific.h" 8 #include "base/compiler_specific.h"
9 #include "net/quic/crypto/quic_decrypter.h" 9 #include "net/quic/crypto/quic_decrypter.h"
10 10
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35 PK11_DecryptFunction pk11_decrypt, 35 PK11_DecryptFunction pk11_decrypt,
36 size_t key_size, 36 size_t key_size,
37 size_t auth_tag_size, 37 size_t auth_tag_size,
38 size_t nonce_prefix_size); 38 size_t nonce_prefix_size);
39 #endif 39 #endif
40 ~AeadBaseDecrypter() override; 40 ~AeadBaseDecrypter() override;
41 41
42 // QuicDecrypter implementation 42 // QuicDecrypter implementation
43 bool SetKey(base::StringPiece key) override; 43 bool SetKey(base::StringPiece key) override;
44 bool SetNoncePrefix(base::StringPiece nonce_prefix) override; 44 bool SetNoncePrefix(base::StringPiece nonce_prefix) override;
45 QuicData* DecryptPacket(QuicPacketSequenceNumber sequence_number, 45 bool DecryptPacket(QuicPacketSequenceNumber sequence_number,
46 base::StringPiece associated_data, 46 const base::StringPiece& associated_data,
47 base::StringPiece ciphertext) override; 47 const base::StringPiece& ciphertext,
48 char* output,
49 size_t* output_length,
50 size_t max_output_length) override;
48 base::StringPiece GetKey() const override; 51 base::StringPiece GetKey() const override;
49 base::StringPiece GetNoncePrefix() const override; 52 base::StringPiece GetNoncePrefix() const override;
50 53
51 protected: 54 protected:
52 // Make these constants available to the subclasses so that the subclasses 55 // Make these constants available to the subclasses so that the subclasses
53 // can assert at compile time their key_size_ and nonce_prefix_size_ do not 56 // can assert at compile time their key_size_ and nonce_prefix_size_ do not
54 // exceed the maximum. 57 // exceed the maximum.
55 static const size_t kMaxKeySize = 32; 58 static const size_t kMaxKeySize = 32;
56 static const size_t kMaxNoncePrefixSize = 4; 59 static const size_t kMaxNoncePrefixSize = 4;
57 60
58 #if !defined(USE_OPENSSL) 61 #if !defined(USE_OPENSSL)
59 struct AeadParams { 62 struct AeadParams {
60 unsigned int len; 63 unsigned int len;
61 union { 64 union {
62 CK_GCM_PARAMS gcm_params; 65 CK_GCM_PARAMS gcm_params;
63 #if !defined(USE_NSS) 66 #if !defined(USE_NSS)
64 // USE_NSS means we are using system NSS rather than our copy of NSS. 67 // USE_NSS means we are using system NSS rather than our copy of NSS.
65 // The system NSS <pkcs11n.h> header doesn't define this type yet. 68 // The system NSS <pkcs11n.h> header doesn't define this type yet.
66 CK_NSS_AEAD_PARAMS nss_aead_params; 69 CK_NSS_AEAD_PARAMS nss_aead_params;
67 #endif 70 #endif
68 } data; 71 } data;
69 }; 72 };
70 73
71 virtual void FillAeadParams(base::StringPiece nonce, 74 virtual void FillAeadParams(base::StringPiece nonce,
72 base::StringPiece associated_data, 75 const base::StringPiece& associated_data,
73 size_t auth_tag_size, 76 size_t auth_tag_size,
74 AeadParams* aead_params) const = 0; 77 AeadParams* aead_params) const = 0;
75 #endif // !defined(USE_OPENSSL) 78 #endif // !defined(USE_OPENSSL)
76 79
77 private: 80 private:
78 bool Decrypt(base::StringPiece nonce, 81 bool Decrypt(base::StringPiece nonce,
79 base::StringPiece associated_data, 82 const base::StringPiece& associated_data,
80 base::StringPiece ciphertext, 83 const base::StringPiece& ciphertext,
81 unsigned char* output, 84 uint8* output,
82 size_t* output_length); 85 size_t* output_length,
86 size_t max_output_length);
83 87
84 #if defined(USE_OPENSSL) 88 #if defined(USE_OPENSSL)
85 const EVP_AEAD* const aead_alg_; 89 const EVP_AEAD* const aead_alg_;
86 #else 90 #else
87 const CK_MECHANISM_TYPE aead_mechanism_; 91 const CK_MECHANISM_TYPE aead_mechanism_;
88 const PK11_DecryptFunction pk11_decrypt_; 92 const PK11_DecryptFunction pk11_decrypt_;
89 #endif 93 #endif
90 const size_t key_size_; 94 const size_t key_size_;
91 const size_t auth_tag_size_; 95 const size_t auth_tag_size_;
92 const size_t nonce_prefix_size_; 96 const size_t nonce_prefix_size_;
93 97
94 // The key. 98 // The key.
95 unsigned char key_[kMaxKeySize]; 99 unsigned char key_[kMaxKeySize];
96 // The nonce prefix. 100 // The nonce prefix.
97 unsigned char nonce_prefix_[kMaxNoncePrefixSize]; 101 unsigned char nonce_prefix_[kMaxNoncePrefixSize];
98 102
99 #if defined(USE_OPENSSL) 103 #if defined(USE_OPENSSL)
100 ScopedEVPAEADCtx ctx_; 104 ScopedEVPAEADCtx ctx_;
101 #endif 105 #endif
102 106
103 DISALLOW_COPY_AND_ASSIGN(AeadBaseDecrypter); 107 DISALLOW_COPY_AND_ASSIGN(AeadBaseDecrypter);
104 }; 108 };
105 109
106 } // namespace net 110 } // namespace net
107 111
108 #endif // NET_QUIC_CRYPTO_AEAD_BASE_DECRYPTER_H_ 112 #endif // NET_QUIC_CRYPTO_AEAD_BASE_DECRYPTER_H_
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