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authorTycho <work.tycho+git@gmail.com>2014-01-26 15:28:51 +0100
committerTycho <work.tycho+git@gmail.com>2014-01-26 15:28:51 +0100
commitbed2ee22e8283a2e8bd0790a89124839319c2fc3 (patch)
treeee9e66a7b7c63995797a502f209079c1422ce9c9 /lib/cryptopp/osrng.h
parentRefactored cBlockHandler::OnUse and dependents (diff)
parentMerge pull request #589 from mc-server/minecartimprovements (diff)
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Diffstat (limited to 'lib/cryptopp/osrng.h')
-rw-r--r--lib/cryptopp/osrng.h156
1 files changed, 0 insertions, 156 deletions
diff --git a/lib/cryptopp/osrng.h b/lib/cryptopp/osrng.h
deleted file mode 100644
index ae07d057b..000000000
--- a/lib/cryptopp/osrng.h
+++ /dev/null
@@ -1,156 +0,0 @@
-#ifndef CRYPTOPP_OSRNG_H
-#define CRYPTOPP_OSRNG_H
-
-//! \file
-
-#include "config.h"
-
-#ifdef OS_RNG_AVAILABLE
-
-#include "randpool.h"
-#include "rng.h"
-#include "aes.h"
-#include "sha.h"
-#include "fips140.h"
-
-NAMESPACE_BEGIN(CryptoPP)
-
-//! Exception class for Operating-System Random Number Generator.
-class CRYPTOPP_DLL OS_RNG_Err : public Exception
-{
-public:
- OS_RNG_Err(const std::string &operation);
-};
-
-#ifdef NONBLOCKING_RNG_AVAILABLE
-
-#ifdef CRYPTOPP_WIN32_AVAILABLE
-class CRYPTOPP_DLL MicrosoftCryptoProvider
-{
-public:
- MicrosoftCryptoProvider();
- ~MicrosoftCryptoProvider();
-#if defined(_WIN64)
- typedef unsigned __int64 ProviderHandle; // type HCRYPTPROV, avoid #include <windows.h>
-#else
- typedef unsigned long ProviderHandle;
-#endif
- ProviderHandle GetProviderHandle() const {return m_hProvider;}
-private:
- ProviderHandle m_hProvider;
-};
-
-#pragma comment(lib, "advapi32.lib")
-#endif
-
-//! encapsulate CryptoAPI's CryptGenRandom or /dev/urandom
-class CRYPTOPP_DLL NonblockingRng : public RandomNumberGenerator
-{
-public:
- NonblockingRng();
- ~NonblockingRng();
- void GenerateBlock(byte *output, size_t size);
-
-protected:
-#ifdef CRYPTOPP_WIN32_AVAILABLE
-# ifndef WORKAROUND_MS_BUG_Q258000
- MicrosoftCryptoProvider m_Provider;
-# endif
-#else
- int m_fd;
-#endif
-};
-
-#endif
-
-#ifdef BLOCKING_RNG_AVAILABLE
-
-//! encapsulate /dev/random, or /dev/srandom on OpenBSD
-class CRYPTOPP_DLL BlockingRng : public RandomNumberGenerator
-{
-public:
- BlockingRng();
- ~BlockingRng();
- void GenerateBlock(byte *output, size_t size);
-
-protected:
- int m_fd;
-};
-
-#endif
-
-CRYPTOPP_DLL void CRYPTOPP_API OS_GenerateRandomBlock(bool blocking, byte *output, size_t size);
-
-//! Automaticly Seeded Randomness Pool
-/*! This class seeds itself using an operating system provided RNG. */
-class CRYPTOPP_DLL AutoSeededRandomPool : public RandomPool
-{
-public:
- //! use blocking to choose seeding with BlockingRng or NonblockingRng. the parameter is ignored if only one of these is available
- explicit AutoSeededRandomPool(bool blocking = false, unsigned int seedSize = 32)
- {Reseed(blocking, seedSize);}
- void Reseed(bool blocking = false, unsigned int seedSize = 32);
-};
-
-//! RNG from ANSI X9.17 Appendix C, seeded using an OS provided RNG
-template <class BLOCK_CIPHER>
-class AutoSeededX917RNG : public RandomNumberGenerator, public NotCopyable
-{
-public:
- //! use blocking to choose seeding with BlockingRng or NonblockingRng. the parameter is ignored if only one of these is available
- explicit AutoSeededX917RNG(bool blocking = false, bool autoSeed = true)
- {if (autoSeed) Reseed(blocking);}
- void Reseed(bool blocking = false, const byte *additionalEntropy = NULL, size_t length = 0);
- // exposed for testing
- void Reseed(const byte *key, size_t keylength, const byte *seed, const byte *timeVector);
-
- bool CanIncorporateEntropy() const {return true;}
- void IncorporateEntropy(const byte *input, size_t length) {Reseed(false, input, length);}
- void GenerateIntoBufferedTransformation(BufferedTransformation &target, const std::string &channel, lword length) {m_rng->GenerateIntoBufferedTransformation(target, channel, length);}
-
-private:
- member_ptr<RandomNumberGenerator> m_rng;
-};
-
-template <class BLOCK_CIPHER>
-void AutoSeededX917RNG<BLOCK_CIPHER>::Reseed(const byte *key, size_t keylength, const byte *seed, const byte *timeVector)
-{
- m_rng.reset(new X917RNG(new typename BLOCK_CIPHER::Encryption(key, keylength), seed, timeVector));
-}
-
-template <class BLOCK_CIPHER>
-void AutoSeededX917RNG<BLOCK_CIPHER>::Reseed(bool blocking, const byte *input, size_t length)
-{
- SecByteBlock seed(BLOCK_CIPHER::BLOCKSIZE + BLOCK_CIPHER::DEFAULT_KEYLENGTH);
- const byte *key;
- do
- {
- OS_GenerateRandomBlock(blocking, seed, seed.size());
- if (length > 0)
- {
- SHA256 hash;
- hash.Update(seed, seed.size());
- hash.Update(input, length);
- hash.TruncatedFinal(seed, UnsignedMin(hash.DigestSize(), seed.size()));
- }
- key = seed + BLOCK_CIPHER::BLOCKSIZE;
- } // check that seed and key don't have same value
- while (memcmp(key, seed, STDMIN((unsigned int)BLOCK_CIPHER::BLOCKSIZE, (unsigned int)BLOCK_CIPHER::DEFAULT_KEYLENGTH)) == 0);
-
- Reseed(key, BLOCK_CIPHER::DEFAULT_KEYLENGTH, seed, NULL);
-}
-
-CRYPTOPP_DLL_TEMPLATE_CLASS AutoSeededX917RNG<AES>;
-
-//! this is AutoSeededX917RNG\<AES\> in FIPS mode, otherwise it's AutoSeededRandomPool
-#if CRYPTOPP_ENABLE_COMPLIANCE_WITH_FIPS_140_2
-typedef AutoSeededX917RNG<AES> DefaultAutoSeededRNG;
-#else
-typedef AutoSeededRandomPool DefaultAutoSeededRNG;
-#endif
-
-NAMESPACE_END
-
-#endif
-
-#endif