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author | Tycho <work.tycho+git@gmail.com> | 2014-01-26 15:28:51 +0100 |
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committer | Tycho <work.tycho+git@gmail.com> | 2014-01-26 15:28:51 +0100 |
commit | bed2ee22e8283a2e8bd0790a89124839319c2fc3 (patch) | |
tree | ee9e66a7b7c63995797a502f209079c1422ce9c9 /lib/cryptopp/randpool.cpp | |
parent | Refactored cBlockHandler::OnUse and dependents (diff) | |
parent | Merge pull request #589 from mc-server/minecartimprovements (diff) | |
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Diffstat (limited to 'lib/cryptopp/randpool.cpp')
-rw-r--r-- | lib/cryptopp/randpool.cpp | 63 |
1 files changed, 0 insertions, 63 deletions
diff --git a/lib/cryptopp/randpool.cpp b/lib/cryptopp/randpool.cpp deleted file mode 100644 index a063c8996..000000000 --- a/lib/cryptopp/randpool.cpp +++ /dev/null @@ -1,63 +0,0 @@ -// randpool.cpp - written and placed in the public domain by Wei Dai -// RandomPool used to follow the design of randpool in PGP 2.6.x, -// but as of version 5.5 it has been redesigned to reduce the risk -// of reusing random numbers after state rollback (which may occur -// when running in a virtual machine like VMware). - -#include "pch.h" - -#ifndef CRYPTOPP_IMPORTS - -#include "randpool.h" -#include "aes.h" -#include "sha.h" -#include "hrtimer.h" -#include <time.h> - -NAMESPACE_BEGIN(CryptoPP) - -RandomPool::RandomPool() - : m_pCipher(new AES::Encryption), m_keySet(false) -{ - memset(m_key, 0, m_key.SizeInBytes()); - memset(m_seed, 0, m_seed.SizeInBytes()); -} - -void RandomPool::IncorporateEntropy(const byte *input, size_t length) -{ - SHA256 hash; - hash.Update(m_key, 32); - hash.Update(input, length); - hash.Final(m_key); - m_keySet = false; -} - -void RandomPool::GenerateIntoBufferedTransformation(BufferedTransformation &target, const std::string &channel, lword size) -{ - if (size > 0) - { - if (!m_keySet) - m_pCipher->SetKey(m_key, 32); - - Timer timer; - TimerWord tw = timer.GetCurrentTimerValue(); - CRYPTOPP_COMPILE_ASSERT(sizeof(tw) <= 16); - *(TimerWord *)m_seed.data() += tw; - - time_t t = time(NULL); - CRYPTOPP_COMPILE_ASSERT(sizeof(t) <= 8); - *(time_t *)(m_seed.data()+8) += t; - - do - { - m_pCipher->ProcessBlock(m_seed); - size_t len = UnsignedMin(16, size); - target.ChannelPut(channel, m_seed, len); - size -= len; - } while (size > 0); - } -} - -NAMESPACE_END - -#endif |