diff options
author | Micah Anderson <micah@riseup.net> | 2013-08-22 16:39:52 -0400 |
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committer | Micah Anderson <micah@riseup.net> | 2013-08-22 16:57:38 -0400 |
commit | 6d35b188b668c5007409e63a15e8340ed34dcfb8 (patch) | |
tree | c9dd25f3675b3b6f9b29b0786057f8a4d377bc2b /embeddedcryptopp/osrng.cpp | |
parent | 86a1089dc6694f58d0f3356bdf9c8fe4061421f5 (diff) | |
parent | 5e60e0e3af85f22aa0afe8bf0ecf85619afacfeb (diff) |
Merge tag 'upstream/0.6.0.12'
Upstream version 0.6.0.12
Diffstat (limited to 'embeddedcryptopp/osrng.cpp')
-rw-r--r-- | embeddedcryptopp/osrng.cpp | 171 |
1 files changed, 0 insertions, 171 deletions
diff --git a/embeddedcryptopp/osrng.cpp b/embeddedcryptopp/osrng.cpp deleted file mode 100644 index fa6dd36..0000000 --- a/embeddedcryptopp/osrng.cpp +++ /dev/null @@ -1,171 +0,0 @@ -// osrng.cpp - written and placed in the public domain by Wei Dai - -// Thanks to Leonard Janke for the suggestion for AutoSeededRandomPool. - -#include "pch.h" - -#ifndef CRYPTOPP_IMPORTS - -#include "osrng.h" - -#ifdef OS_RNG_AVAILABLE - -#include "rng.h" - -#ifdef CRYPTOPP_WIN32_AVAILABLE -#ifndef _WIN32_WINNT -#define _WIN32_WINNT 0x0400 -#endif -#include <windows.h> -#include <wincrypt.h> -#endif - -#ifdef CRYPTOPP_UNIX_AVAILABLE -#include <errno.h> -#include <fcntl.h> -#include <unistd.h> -#endif - -NAMESPACE_BEGIN(CryptoPP) - -#if defined(NONBLOCKING_RNG_AVAILABLE) || defined(BLOCKING_RNG_AVAILABLE) -OS_RNG_Err::OS_RNG_Err(const std::string &operation) - : Exception(OTHER_ERROR, "OS_Rng: " + operation + " operation failed with error " + -#ifdef CRYPTOPP_WIN32_AVAILABLE - "0x" + IntToString(GetLastError(), 16) -#else - IntToString(errno) -#endif - ) -{ -} -#endif - -#ifdef NONBLOCKING_RNG_AVAILABLE - -#ifdef CRYPTOPP_WIN32_AVAILABLE - -MicrosoftCryptoProvider::MicrosoftCryptoProvider() -{ - if(!CryptAcquireContext(&m_hProvider, 0, 0, PROV_RSA_FULL, CRYPT_VERIFYCONTEXT)) - throw OS_RNG_Err("CryptAcquireContext"); -} - -MicrosoftCryptoProvider::~MicrosoftCryptoProvider() -{ - CryptReleaseContext(m_hProvider, 0); -} - -#endif - -NonblockingRng::NonblockingRng() -{ -#ifndef CRYPTOPP_WIN32_AVAILABLE - m_fd = open("/dev/urandom",O_RDONLY); - if (m_fd == -1) - throw OS_RNG_Err("open /dev/urandom"); -#endif -} - -NonblockingRng::~NonblockingRng() -{ -#ifndef CRYPTOPP_WIN32_AVAILABLE - close(m_fd); -#endif -} - -void NonblockingRng::GenerateBlock(byte *output, size_t size) -{ -#ifdef CRYPTOPP_WIN32_AVAILABLE -# ifdef WORKAROUND_MS_BUG_Q258000 - const MicrosoftCryptoProvider &m_Provider = Singleton<MicrosoftCryptoProvider>().Ref(); -# endif - if (!CryptGenRandom(m_Provider.GetProviderHandle(), (DWORD)size, output)) - throw OS_RNG_Err("CryptGenRandom"); -#else - if (read(m_fd, output, size) != size) - throw OS_RNG_Err("read /dev/urandom"); -#endif -} - -#endif - -// ************************************************************* - -#ifdef BLOCKING_RNG_AVAILABLE - -#ifndef CRYPTOPP_BLOCKING_RNG_FILENAME -#ifdef __OpenBSD__ -#define CRYPTOPP_BLOCKING_RNG_FILENAME "/dev/srandom" -#else -#define CRYPTOPP_BLOCKING_RNG_FILENAME "/dev/random" -#endif -#endif - -BlockingRng::BlockingRng() -{ - m_fd = open(CRYPTOPP_BLOCKING_RNG_FILENAME,O_RDONLY); - if (m_fd == -1) - throw OS_RNG_Err("open " CRYPTOPP_BLOCKING_RNG_FILENAME); -} - -BlockingRng::~BlockingRng() -{ - close(m_fd); -} - -void BlockingRng::GenerateBlock(byte *output, size_t size) -{ - while (size) - { - // on some systems /dev/random will block until all bytes - // are available, on others it will returns immediately - ssize_t len = read(m_fd, output, size); - if (len < 0) - throw OS_RNG_Err("read " CRYPTOPP_BLOCKING_RNG_FILENAME); - size -= len; - output += len; - if (size) - sleep(1); - } -} - -#endif - -// ************************************************************* - -void OS_GenerateRandomBlock(bool blocking, byte *output, size_t size) -{ -#ifdef NONBLOCKING_RNG_AVAILABLE - if (blocking) -#endif - { -#ifdef BLOCKING_RNG_AVAILABLE - BlockingRng rng; - rng.GenerateBlock(output, size); -#endif - } - -#ifdef BLOCKING_RNG_AVAILABLE - if (!blocking) -#endif - { -#ifdef NONBLOCKING_RNG_AVAILABLE - NonblockingRng rng; - rng.GenerateBlock(output, size); -#endif - } -} - -void AutoSeededRandomPool::Reseed(bool blocking, unsigned int seedSize) -{ - SecByteBlock seed(seedSize); - OS_GenerateRandomBlock(blocking, seed, seedSize); - IncorporateEntropy(seed, seedSize); -} - -NAMESPACE_END - -#endif - -#endif |