8 #ifndef CRYPTOPP_IMPORTS
13 #if defined(CRYPTOPP_WIN32_AVAILABLE) && !defined(OS_RNG_AVAILABLE)
14 # pragma message("WARNING: Compiling for Windows but an OS RNG is not available. This is likely a Windows Phone 8 or Windows Store 8 app.")
17 #if !defined(OS_NO_DEPENDENCE) && defined(OS_RNG_AVAILABLE)
22 #ifdef CRYPTOPP_WIN32_AVAILABLE
26 #define WIN32_LEAN_AND_MEAN
28 #if defined(USE_MS_CRYPTOAPI)
30 #ifndef CRYPT_NEWKEYSET
31 # define CRYPT_NEWKEYSET 0x00000008
33 #ifndef CRYPT_MACHINE_KEYSET
34 # define CRYPT_MACHINE_KEYSET 0x00000020
36 #elif defined(USE_MS_CNGAPI)
39 #ifndef BCRYPT_SUCCESS
40 # define BCRYPT_SUCCESS(Status) (((NTSTATUS)(Status)) >= 0)
42 #ifndef STATUS_INVALID_PARAMETER
43 # define STATUS_INVALID_PARAMETER 0xC000000D
45 #ifndef STATUS_INVALID_HANDLE
46 # define STATUS_INVALID_HANDLE 0xC0000008
51 #ifdef CRYPTOPP_UNIX_AVAILABLE
59 #if defined(NONBLOCKING_RNG_AVAILABLE) || defined(BLOCKING_RNG_AVAILABLE)
61 :
Exception(OTHER_ERROR,
"OS_Rng: " + operation +
" operation failed with error " +
62 #ifdef CRYPTOPP_WIN32_AVAILABLE
72 #ifdef NONBLOCKING_RNG_AVAILABLE
74 #ifdef CRYPTOPP_WIN32_AVAILABLE
76 #if defined(USE_MS_CNGAPI)
77 inline DWORD NtStatusToErrorCode(NTSTATUS status)
79 if (status == STATUS_INVALID_PARAMETER)
80 return ERROR_INVALID_PARAMETER;
81 else if (status == STATUS_INVALID_HANDLE)
82 return ERROR_INVALID_HANDLE;
88 #if defined(UNICODE) || defined(_UNICODE)
89 # define CRYPTOPP_CONTAINER L"Crypto++ RNG"
91 # define CRYPTOPP_CONTAINER "Crypto++ RNG"
96 #if defined(USE_MS_CRYPTOAPI)
98 if (!CryptAcquireContext(&m_hProvider, 0, 0, PROV_RSA_FULL, CRYPT_VERIFYCONTEXT))
100 const DWORD firstErr = GetLastError();
101 if (!CryptAcquireContext(&m_hProvider, CRYPTOPP_CONTAINER, 0, PROV_RSA_FULL, CRYPT_NEWKEYSET ) &&
102 !CryptAcquireContext(&m_hProvider, CRYPTOPP_CONTAINER, 0, PROV_RSA_FULL, CRYPT_MACHINE_KEYSET|CRYPT_NEWKEYSET))
105 SetLastError(firstErr);
109 #elif defined(USE_MS_CNGAPI)
110 NTSTATUS ret = BCryptOpenAlgorithmProvider(&m_hProvider, BCRYPT_RNG_ALGORITHM, MS_PRIMITIVE_PROVIDER, 0);
111 if (!(BCRYPT_SUCCESS(ret)))
114 SetLastError(NtStatusToErrorCode(ret));
115 throw OS_RNG_Err(
"BCryptOpenAlgorithmProvider");
120 MicrosoftCryptoProvider::~MicrosoftCryptoProvider()
122 #if defined(USE_MS_CRYPTOAPI)
124 CryptReleaseContext(m_hProvider, 0);
125 #elif defined(USE_MS_CNGAPI)
127 BCryptCloseAlgorithmProvider(m_hProvider, 0);
131 #endif // CRYPTOPP_WIN32_AVAILABLE
135 #ifndef CRYPTOPP_WIN32_AVAILABLE
136 m_fd = open(
"/dev/urandom",O_RDONLY);
142 NonblockingRng::~NonblockingRng()
144 #ifndef CRYPTOPP_WIN32_AVAILABLE
151 #ifdef CRYPTOPP_WIN32_AVAILABLE
154 # if defined(USE_MS_CRYPTOAPI)
157 # elif defined(USE_MS_CNGAPI)
158 NTSTATUS ret = BCryptGenRandom(hProvider.
GetProviderHandle(), output, (ULONG)size, 0);
159 if (!(BCRYPT_SUCCESS(ret)))
162 SetLastError(NtStatusToErrorCode(ret));
169 ssize_t len = read(m_fd, output, size);
173 if (errno != EINTR && errno != EAGAIN)
182 #endif // CRYPTOPP_WIN32_AVAILABLE
185 #endif // NONBLOCKING_RNG_AVAILABLE
189 #ifdef BLOCKING_RNG_AVAILABLE
191 #ifndef CRYPTOPP_BLOCKING_RNG_FILENAME
193 #define CRYPTOPP_BLOCKING_RNG_FILENAME "/dev/srandom"
195 #define CRYPTOPP_BLOCKING_RNG_FILENAME "/dev/random"
201 m_fd = open(CRYPTOPP_BLOCKING_RNG_FILENAME,O_RDONLY);
203 throw OS_RNG_Err(
"open " CRYPTOPP_BLOCKING_RNG_FILENAME);
206 BlockingRng::~BlockingRng()
217 ssize_t len = read(m_fd, output, size);
221 if (errno != EINTR && errno != EAGAIN)
222 throw OS_RNG_Err(
"read " CRYPTOPP_BLOCKING_RNG_FILENAME);
234 #endif // BLOCKING_RNG_AVAILABLE
240 #ifdef NONBLOCKING_RNG_AVAILABLE
244 #ifdef BLOCKING_RNG_AVAILABLE
250 #ifdef BLOCKING_RNG_AVAILABLE
254 #ifdef NONBLOCKING_RNG_AVAILABLE
270 #endif // OS_RNG_AVAILABLE
272 #endif // CRYPTOPP_IMPORTS