/usr/include/x86_64-linux-gnu/qcc/CngCache.h is in liballjoyn-common-dev-1604 16.04a-3.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 | #ifndef _CNG_CACHE_H
#define _CNG_CACHE_H
/**
* @file
*
* This file defines the CngCache object used to manage the lifetime of global CNG handles.
*/
/******************************************************************************
* Copyright AllSeen Alliance. All rights reserved.
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
******************************************************************************/
#include <windows.h>
#include <bcrypt.h>
#include <qcc/platform.h>
#include <qcc/Mutex.h>
#include <qcc/Crypto.h>
namespace qcc {
/**
* This struct manages the lifetime of algorithm handles.
*/
struct CngCache {
CngCache();
~CngCache();
/**
* Delete the opened algorithm handles.
*/
void Cleanup();
/**
* Open the AES-CCM provider handle.
*
* @return #ER_OK if the handle was successfully opened
* other error indicating failure
*/
QStatus OpenCcmHandle();
/**
* Open the AES-ECB provider handle.
*
* @return #ER_OK if the handle was successfully opened
* other error indicating failure
*/
QStatus OpenEcbHandle();
/**
* Open a hash algorithm provider handle.
*
* @param algorithm Hash algorithm
* @param usingMac true if using MAC, false otherwise
*
* @return #ER_OK if the handle was successfully opened
* other error indicating failure
*/
QStatus OpenHashHandle(qcc::Crypto_Hash::Algorithm algorithm, bool usingMac);
/**
* Open an elliptic curve Digital Signature Algorithm (ECDSA) provider handle.
*
* @param curveType Curve type
*
* @return #ER_OK if the handle was successfully opened
* other error indicating failure
*/
QStatus OpenEcdsaHandle(uint8_t curveType);
/**
* Open an elliptic curve Diffie-Hellman key exchange provider handle.
*
* @param curveType Curve type
*
* @return #ER_OK if the handle was successfully opened
* other error indicating failure
*/
QStatus OpenEcdhHandle(uint8_t curveType);
/**
* Number of supported algorithms as defined by Crypto_Hash::Algorithm enum
*/
static const int ALGORITHM_COUNT = 2;
/**
* Number of supported curves for ECDSA or ECDH.
* This should be equal to the number of
* ECC_* constants defined in the Crypto_ECC
* class in CryptoECC.h (i.e. ECC_NIST_P256 etc.)
*/
static const int ECDSA_ALGORITHM_COUNT = 1;
static const int ECDH_ALGORITHM_COUNT = 1;
BCRYPT_ALG_HANDLE algHandles[ALGORITHM_COUNT][2];
BCRYPT_ALG_HANDLE ccmHandle;
BCRYPT_ALG_HANDLE ecbHandle;
BCRYPT_ALG_HANDLE ecdsaHandles[ECDSA_ALGORITHM_COUNT];
BCRYPT_ALG_HANDLE ecdhHandles[ECDH_ALGORITHM_COUNT];
private:
Mutex* m_mutex;
};
extern CngCache& cngCache;
} // qcc
#endif
|