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author--author=Satoshi Nakamoto <satoshin@gmx.com>2010-07-27 20:43:55 +0000
committerGavin Andresen <gavinandresen@gmail.com>2010-07-27 20:43:55 +0000
commit3dd20ff2f87958a440c9dceae8abe3967aa48fcf (patch)
tree5cf88b4e9ba89460a83488561d9fd23feaa87365 /cryptopp/iterhash.h
parent9f35575ca34eb15b20d1d5374b56ac9d4c8cc2bf (diff)
downloadbitcoin-3dd20ff2f87958a440c9dceae8abe3967aa48fcf.tar.xz
added a subset of Crypto++ 5.6.0 with 48% faster ASM SHA-256, combined speedup 2.5x faster vs 0.3.3, thanks BlackEye for figuring out the alignment problem
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diff --git a/cryptopp/iterhash.h b/cryptopp/iterhash.h
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+#ifndef CRYPTOPP_ITERHASH_H
+#define CRYPTOPP_ITERHASH_H
+
+#include "secblock.h"
+
+NAMESPACE_BEGIN(CryptoPP)
+
+// *** trimmed down dependency from iterhash.h ***
+template <class T_HashWordType, class T_Endianness, unsigned int T_BlockSize, unsigned int T_StateSize, class T_Transform, unsigned int T_DigestSize = 0, bool T_StateAligned = false>
+class CRYPTOPP_NO_VTABLE IteratedHashWithStaticTransform
+{
+public:
+ CRYPTOPP_CONSTANT(DIGESTSIZE = T_DigestSize ? T_DigestSize : T_StateSize)
+ unsigned int DigestSize() const {return DIGESTSIZE;};
+ typedef T_HashWordType HashWordType;
+ CRYPTOPP_CONSTANT(BLOCKSIZE = T_BlockSize)
+
+protected:
+ IteratedHashWithStaticTransform() {this->Init();}
+ void HashEndianCorrectedBlock(const T_HashWordType *data) {T_Transform::Transform(this->m_state, data);}
+ void Init() {T_Transform::InitState(this->m_state);}
+
+ T_HashWordType* StateBuf() {return this->m_state;}
+ FixedSizeAlignedSecBlock<T_HashWordType, T_BlockSize/sizeof(T_HashWordType), T_StateAligned> m_state;
+};
+
+NAMESPACE_END
+
+#endif