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FillPhraseSet optimizations

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master
Inga 🏳‍🌈 8 years ago
parent bb22805cbc
commit 2d1dcc132c
1 changed files with 89 additions and 33 deletions
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  1. 114
      dotnet/WhiteRabbit.UnmanagedBridge/WhiteRabbit.UnmanagedBridge.cpp

114
dotnet/WhiteRabbit.UnmanagedBridge/WhiteRabbit.UnmanagedBridge.cpp
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@ -26,47 +26,103 @@ void WhiteRabbitUnmanagedBridge::MD5Unmanaged::ComputeMD5(unsigned __int32 * inp
#endif
}
void WhiteRabbitUnmanagedBridge::MD5Unmanaged::FillPhraseSet(__int64* bufferPointer, __int64* allWordsPointer, __int32* wordIndexes, unsigned __int64* permutationsPointer, int permutationOffset, int numberOfCharacters, int numberOfWords)
template<int phraseOffset>
struct Filler
{
static void FillPhraseSetLength(unsigned __int32* uintBuffer, const unsigned __int32 lengthInBits)
{
__int64* longBuffer = (__int64*)bufferPointer;
*uintBuffer = lengthInBits;
Filler<phraseOffset + 1>::FillPhraseSetLength(uintBuffer + 8, lengthInBits);
}
};
auto currentPermutationPointer = permutationsPointer + permutationOffset;
for (auto i = 0; i < PHRASES_PER_SET; i++, currentPermutationPointer++)
template<>
struct Filler<PHRASES_PER_SET>
{
auto permutation = *currentPermutationPointer;
if (permutation == 0)
static void FillPhraseSetLength(const unsigned __int32* uintBuffer, const unsigned __int32 lengthInBits)
{
continue;
}
};
auto cumulativeWordOffsetX4 = 0;
for (auto j = 0; j < numberOfWords; j++)
void WhiteRabbitUnmanagedBridge::MD5Unmanaged::FillPhraseSet(__int64* bufferPointer, __int64* allWordsPointer, __int32* wordIndexes, unsigned __int64* permutationsPointer, int permutationOffset, int numberOfCharacters, int numberOfWords)
{
auto currentWord = allWordsPointer + wordIndexes[permutation & 15] * 128;
permutation = permutation >> 4;
longBuffer[0] |= currentWord[cumulativeWordOffsetX4 + 0];
longBuffer[1] |= currentWord[cumulativeWordOffsetX4 + 1];
longBuffer[2] ^= currentWord[cumulativeWordOffsetX4 + 2];
longBuffer[3] ^= currentWord[cumulativeWordOffsetX4 + 3];
cumulativeWordOffsetX4 += (__int32)currentWord[127];
}
unsigned __int64 permutations[PHRASES_PER_SET];
__int32 cumulativeWordOffsets[PHRASES_PER_SET];
__int32 permutationOffsetInBytes = permutationOffset * sizeof(*permutations);
#define INIT_DATA(phraseNumber) \
permutations[phraseNumber] = *(unsigned __int64*)(((char*)permutationsPointer) + permutationOffsetInBytes + phraseNumber * sizeof(*permutations)); \
cumulativeWordOffsets[phraseNumber] = 0;
longBuffer += 4;
}
INIT_DATA(0);
INIT_DATA(1);
INIT_DATA(2);
INIT_DATA(3);
INIT_DATA(4);
INIT_DATA(5);
INIT_DATA(6);
INIT_DATA(7);
INIT_DATA(8);
INIT_DATA(9);
INIT_DATA(10);
INIT_DATA(11);
INIT_DATA(12);
INIT_DATA(13);
INIT_DATA(14);
INIT_DATA(15);
auto length = numberOfCharacters + numberOfWords - 1;
unsigned char* byteBuffer = ((unsigned char*)bufferPointer) + length;
for (auto j = 0; j < numberOfWords; j++)
{
for (auto i = 0; i < PHRASES_PER_SET; i++)
{
*byteBuffer = 128;
byteBuffer += 32;
auto currentWord = allWordsPointer + wordIndexes[permutations[i] & 15] * 128;
permutations[i] = permutations[i] >> 4;
bufferPointer[i * 4 + 0] |= currentWord[cumulativeWordOffsets[i] + 0];
bufferPointer[i * 4 + 1] |= currentWord[cumulativeWordOffsets[i] + 1];
bufferPointer[i * 4 + 2] |= currentWord[cumulativeWordOffsets[i] + 2];
bufferPointer[i * 4 + 3] |= currentWord[cumulativeWordOffsets[i] + 3];
cumulativeWordOffsets[i] += (__int32)currentWord[127];
}
}
auto length = numberOfCharacters + numberOfWords - 1;
auto lengthInBits = (unsigned __int32)(length << 3);
unsigned int* uintBuffer = ((unsigned __int32*)bufferPointer) + 7;
for (auto i = 0; i < PHRASES_PER_SET; i++)
{
*uintBuffer = lengthInBits;
uintBuffer += 8;
}
#define FILL_PHRASE_LAST_BYTE(phraseNumber, byteBuffer) ((unsigned char*)bufferPointer)[length + phraseNumber * 32] = 128;
#define FILL_PHRASE_SET_LENGTH(phraseNumber, uintBuffer, lengthInBits) ((unsigned __int32*)bufferPointer)[7 + phraseNumber * 8] = lengthInBits;
FILL_PHRASE_LAST_BYTE(0, byteBuffer);
FILL_PHRASE_LAST_BYTE(1, byteBuffer);
FILL_PHRASE_LAST_BYTE(2, byteBuffer);
FILL_PHRASE_LAST_BYTE(3, byteBuffer);
FILL_PHRASE_SET_LENGTH(0, uintBuffer, lengthInBits);
FILL_PHRASE_SET_LENGTH(1, uintBuffer, lengthInBits);
FILL_PHRASE_SET_LENGTH(2, uintBuffer, lengthInBits);
FILL_PHRASE_SET_LENGTH(3, uintBuffer, lengthInBits);
FILL_PHRASE_LAST_BYTE(4, byteBuffer);
FILL_PHRASE_LAST_BYTE(5, byteBuffer);
FILL_PHRASE_LAST_BYTE(6, byteBuffer);
FILL_PHRASE_LAST_BYTE(7, byteBuffer);
FILL_PHRASE_SET_LENGTH(4, uintBuffer, lengthInBits);
FILL_PHRASE_SET_LENGTH(5, uintBuffer, lengthInBits);
FILL_PHRASE_SET_LENGTH(6, uintBuffer, lengthInBits);
FILL_PHRASE_SET_LENGTH(7, uintBuffer, lengthInBits);
FILL_PHRASE_LAST_BYTE(8, byteBuffer);
FILL_PHRASE_LAST_BYTE(9, byteBuffer);
FILL_PHRASE_LAST_BYTE(10, byteBuffer);
FILL_PHRASE_LAST_BYTE(11, byteBuffer);
FILL_PHRASE_SET_LENGTH(8, uintBuffer, lengthInBits);
FILL_PHRASE_SET_LENGTH(9, uintBuffer, lengthInBits);
FILL_PHRASE_SET_LENGTH(10, uintBuffer, lengthInBits);
FILL_PHRASE_SET_LENGTH(11, uintBuffer, lengthInBits);
FILL_PHRASE_LAST_BYTE(12, byteBuffer);
FILL_PHRASE_LAST_BYTE(13, byteBuffer);
FILL_PHRASE_LAST_BYTE(14, byteBuffer);
FILL_PHRASE_LAST_BYTE(15, byteBuffer);
FILL_PHRASE_SET_LENGTH(12, uintBuffer, lengthInBits);
FILL_PHRASE_SET_LENGTH(13, uintBuffer, lengthInBits);
FILL_PHRASE_SET_LENGTH(14, uintBuffer, lengthInBits);
FILL_PHRASE_SET_LENGTH(15, uintBuffer, lengthInBits);
}

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