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Side by Side Diff: crypto/symmetric_key.h

Issue 1082123003: Rename USE_NSS to USE_NSS_CERTS. (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@use-nss-certs
Patch Set: rebase Created 5 years, 8 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 CRYPTO_SYMMETRIC_KEY_H_ 5 #ifndef CRYPTO_SYMMETRIC_KEY_H_
6 #define CRYPTO_SYMMETRIC_KEY_H_ 6 #define CRYPTO_SYMMETRIC_KEY_H_
7 7
8 #include <string> 8 #include <string>
9 9
10 #include "base/basictypes.h" 10 #include "base/basictypes.h"
11 #include "crypto/crypto_export.h" 11 #include "crypto/crypto_export.h"
12 12
13 #if defined(NACL_WIN64) 13 #if defined(NACL_WIN64)
14 // See comments for crypto_nacl_win64 in crypto.gyp. 14 // See comments for crypto_nacl_win64 in crypto.gyp.
15 // Must test for NACL_WIN64 before OS_WIN since former is a subset of latter. 15 // Must test for NACL_WIN64 before OS_WIN since former is a subset of latter.
16 #include "crypto/scoped_capi_types.h" 16 #include "crypto/scoped_capi_types.h"
17 #elif defined(USE_NSS) || \ 17 #elif defined(USE_NSS_CERTS) || \
18 (!defined(USE_OPENSSL) && (defined(OS_WIN) || defined(OS_MACOSX))) 18 (!defined(USE_OPENSSL) && (defined(OS_WIN) || defined(OS_MACOSX)))
19 #include "crypto/scoped_nss_types.h" 19 #include "crypto/scoped_nss_types.h"
20 #endif 20 #endif
21 21
22 namespace crypto { 22 namespace crypto {
23 23
24 // Wraps a platform-specific symmetric key and allows it to be held in a 24 // Wraps a platform-specific symmetric key and allows it to be held in a
25 // scoped_ptr. 25 // scoped_ptr.
26 class CRYPTO_EXPORT SymmetricKey { 26 class CRYPTO_EXPORT SymmetricKey {
27 public: 27 public:
(...skipping 26 matching lines...) Expand all
54 // Imports an array of key bytes in |raw_key|. This key may have been 54 // Imports an array of key bytes in |raw_key|. This key may have been
55 // generated by GenerateRandomKey or DeriveKeyFromPassword and exported with 55 // generated by GenerateRandomKey or DeriveKeyFromPassword and exported with
56 // GetRawKey, or via another compatible method. The key must be of suitable 56 // GetRawKey, or via another compatible method. The key must be of suitable
57 // size for use with |algorithm|. The caller owns the returned SymmetricKey. 57 // size for use with |algorithm|. The caller owns the returned SymmetricKey.
58 static SymmetricKey* Import(Algorithm algorithm, const std::string& raw_key); 58 static SymmetricKey* Import(Algorithm algorithm, const std::string& raw_key);
59 59
60 #if defined(NACL_WIN64) 60 #if defined(NACL_WIN64)
61 HCRYPTKEY key() const { return key_.get(); } 61 HCRYPTKEY key() const { return key_.get(); }
62 #elif defined(USE_OPENSSL) 62 #elif defined(USE_OPENSSL)
63 const std::string& key() { return key_; } 63 const std::string& key() { return key_; }
64 #elif defined(USE_NSS) || defined(OS_WIN) || defined(OS_MACOSX) 64 #elif defined(USE_NSS_CERTS) || defined(OS_WIN) || defined(OS_MACOSX)
65 PK11SymKey* key() const { return key_.get(); } 65 PK11SymKey* key() const { return key_.get(); }
66 #endif 66 #endif
67 67
68 // Extracts the raw key from the platform specific data. 68 // Extracts the raw key from the platform specific data.
69 // Warning: |raw_key| holds the raw key as bytes and thus must be handled 69 // Warning: |raw_key| holds the raw key as bytes and thus must be handled
70 // carefully. 70 // carefully.
71 bool GetRawKey(std::string* raw_key); 71 bool GetRawKey(std::string* raw_key);
72 72
73 private: 73 private:
74 #if defined(NACL_WIN64) 74 #if defined(NACL_WIN64)
75 SymmetricKey(HCRYPTPROV provider, HCRYPTKEY key, 75 SymmetricKey(HCRYPTPROV provider, HCRYPTKEY key,
76 const void* key_data, size_t key_size_in_bytes); 76 const void* key_data, size_t key_size_in_bytes);
77 77
78 ScopedHCRYPTPROV provider_; 78 ScopedHCRYPTPROV provider_;
79 ScopedHCRYPTKEY key_; 79 ScopedHCRYPTKEY key_;
80 80
81 // Contains the raw key, if it is known during initialization and when it 81 // Contains the raw key, if it is known during initialization and when it
82 // is likely that the associated |provider_| will be unable to export the 82 // is likely that the associated |provider_| will be unable to export the
83 // |key_|. This is the case of HMAC keys when the key size exceeds 16 bytes 83 // |key_|. This is the case of HMAC keys when the key size exceeds 16 bytes
84 // when using the default RSA provider. 84 // when using the default RSA provider.
85 // TODO(rsleevi): See if KP_EFFECTIVE_KEYLEN is the reason why CryptExportKey 85 // TODO(rsleevi): See if KP_EFFECTIVE_KEYLEN is the reason why CryptExportKey
86 // fails with NTE_BAD_KEY/NTE_BAD_LEN 86 // fails with NTE_BAD_KEY/NTE_BAD_LEN
87 std::string raw_key_; 87 std::string raw_key_;
88 #elif defined(USE_OPENSSL) 88 #elif defined(USE_OPENSSL)
89 SymmetricKey() {} 89 SymmetricKey() {}
90 std::string key_; 90 std::string key_;
91 #elif defined(USE_NSS) || defined(OS_WIN) || defined(OS_MACOSX) 91 #elif defined(USE_NSS_CERTS) || defined(OS_WIN) || defined(OS_MACOSX)
92 explicit SymmetricKey(PK11SymKey* key); 92 explicit SymmetricKey(PK11SymKey* key);
93 ScopedPK11SymKey key_; 93 ScopedPK11SymKey key_;
94 #endif 94 #endif
95 95
96 DISALLOW_COPY_AND_ASSIGN(SymmetricKey); 96 DISALLOW_COPY_AND_ASSIGN(SymmetricKey);
97 }; 97 };
98 98
99 } // namespace crypto 99 } // namespace crypto
100 100
101 #endif // CRYPTO_SYMMETRIC_KEY_H_ 101 #endif // CRYPTO_SYMMETRIC_KEY_H_
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