summaryrefslogtreecommitdiffstats
path: root/lib/cryptopp/iterhash.cpp
diff options
context:
space:
mode:
authorMattes D <github@xoft.cz>2014-01-25 22:05:16 +0100
committerMattes D <github@xoft.cz>2014-01-25 22:05:16 +0100
commit437a9c8d1f13cc7770a95534dbf71b78685edfe7 (patch)
tree68b0e13a46f3936bb772106c0ca8d8e74aba2b8e /lib/cryptopp/iterhash.cpp
parentMerge pull request #581 from worktycho/strerror (diff)
parentProtoProxy: Modified to use PolarSSL. (diff)
downloadcuberite-437a9c8d1f13cc7770a95534dbf71b78685edfe7.tar
cuberite-437a9c8d1f13cc7770a95534dbf71b78685edfe7.tar.gz
cuberite-437a9c8d1f13cc7770a95534dbf71b78685edfe7.tar.bz2
cuberite-437a9c8d1f13cc7770a95534dbf71b78685edfe7.tar.lz
cuberite-437a9c8d1f13cc7770a95534dbf71b78685edfe7.tar.xz
cuberite-437a9c8d1f13cc7770a95534dbf71b78685edfe7.tar.zst
cuberite-437a9c8d1f13cc7770a95534dbf71b78685edfe7.zip
Diffstat (limited to 'lib/cryptopp/iterhash.cpp')
-rw-r--r--lib/cryptopp/iterhash.cpp160
1 files changed, 0 insertions, 160 deletions
diff --git a/lib/cryptopp/iterhash.cpp b/lib/cryptopp/iterhash.cpp
deleted file mode 100644
index 1e31e9fb3..000000000
--- a/lib/cryptopp/iterhash.cpp
+++ /dev/null
@@ -1,160 +0,0 @@
-// iterhash.cpp - written and placed in the public domain by Wei Dai
-
-#ifndef __GNUC__
-#define CRYPTOPP_MANUALLY_INSTANTIATE_TEMPLATES
-#endif
-
-#include "iterhash.h"
-#include "misc.h"
-
-NAMESPACE_BEGIN(CryptoPP)
-
-template <class T, class BASE> void IteratedHashBase<T, BASE>::Update(const byte *input, size_t len)
-{
- HashWordType oldCountLo = m_countLo, oldCountHi = m_countHi;
- if ((m_countLo = oldCountLo + HashWordType(len)) < oldCountLo)
- m_countHi++; // carry from low to high
- m_countHi += (HashWordType)SafeRightShift<8*sizeof(HashWordType)>(len);
- if (m_countHi < oldCountHi || SafeRightShift<2*8*sizeof(HashWordType)>(len) != 0)
- throw HashInputTooLong(this->AlgorithmName());
-
- unsigned int blockSize = this->BlockSize();
- unsigned int num = ModPowerOf2(oldCountLo, blockSize);
- T* dataBuf = this->DataBuf();
- byte* data = (byte *)dataBuf;
-
- if (num != 0) // process left over data
- {
- if (num+len >= blockSize)
- {
- memcpy(data+num, input, blockSize-num);
- HashBlock(dataBuf);
- input += (blockSize-num);
- len -= (blockSize-num);
- num = 0;
- // drop through and do the rest
- }
- else
- {
- memcpy(data+num, input, len);
- return;
- }
- }
-
- // now process the input data in blocks of blockSize bytes and save the leftovers to m_data
- if (len >= blockSize)
- {
- if (input == data)
- {
- assert(len == blockSize);
- HashBlock(dataBuf);
- return;
- }
- else if (IsAligned<T>(input))
- {
- size_t leftOver = HashMultipleBlocks((T *)input, len);
- input += (len - leftOver);
- len = leftOver;
- }
- else
- do
- { // copy input first if it's not aligned correctly
- memcpy(data, input, blockSize);
- HashBlock(dataBuf);
- input+=blockSize;
- len-=blockSize;
- } while (len >= blockSize);
- }
-
- if (len && data != input)
- memcpy(data, input, len);
-}
-
-template <class T, class BASE> byte * IteratedHashBase<T, BASE>::CreateUpdateSpace(size_t &size)
-{
- unsigned int blockSize = this->BlockSize();
- unsigned int num = ModPowerOf2(m_countLo, blockSize);
- size = blockSize - num;
- return (byte *)DataBuf() + num;
-}
-
-template <class T, class BASE> size_t IteratedHashBase<T, BASE>::HashMultipleBlocks(const T *input, size_t length)
-{
- unsigned int blockSize = this->BlockSize();
- bool noReverse = NativeByteOrderIs(this->GetByteOrder());
- T* dataBuf = this->DataBuf();
- do
- {
- if (noReverse)
- this->HashEndianCorrectedBlock(input);
- else
- {
- ByteReverse(dataBuf, input, this->BlockSize());
- this->HashEndianCorrectedBlock(dataBuf);
- }
-
- input += blockSize/sizeof(T);
- length -= blockSize;
- }
- while (length >= blockSize);
- return length;
-}
-
-template <class T, class BASE> void IteratedHashBase<T, BASE>::PadLastBlock(unsigned int lastBlockSize, byte padFirst)
-{
- unsigned int blockSize = this->BlockSize();
- unsigned int num = ModPowerOf2(m_countLo, blockSize);
- T* dataBuf = this->DataBuf();
- byte* data = (byte *)dataBuf;
- data[num++] = padFirst;
- if (num <= lastBlockSize)
- memset(data+num, 0, lastBlockSize-num);
- else
- {
- memset(data+num, 0, blockSize-num);
- HashBlock(dataBuf);
- memset(data, 0, lastBlockSize);
- }
-}
-
-template <class T, class BASE> void IteratedHashBase<T, BASE>::Restart()
-{
- m_countLo = m_countHi = 0;
- Init();
-}
-
-template <class T, class BASE> void IteratedHashBase<T, BASE>::TruncatedFinal(byte *digest, size_t size)
-{
- this->ThrowIfInvalidTruncatedSize(size);
-
- T* dataBuf = this->DataBuf();
- T* stateBuf = this->StateBuf();
- unsigned int blockSize = this->BlockSize();
- ByteOrder order = this->GetByteOrder();
-
- PadLastBlock(blockSize - 2*sizeof(HashWordType));
- dataBuf[blockSize/sizeof(T)-2+order] = ConditionalByteReverse(order, this->GetBitCountLo());
- dataBuf[blockSize/sizeof(T)-1-order] = ConditionalByteReverse(order, this->GetBitCountHi());
-
- HashBlock(dataBuf);
-
- if (IsAligned<HashWordType>(digest) && size%sizeof(HashWordType)==0)
- ConditionalByteReverse<HashWordType>(order, (HashWordType *)digest, stateBuf, size);
- else
- {
- ConditionalByteReverse<HashWordType>(order, stateBuf, stateBuf, this->DigestSize());
- memcpy(digest, stateBuf, size);
- }
-
- this->Restart(); // reinit for next use
-}
-
-#ifdef __GNUC__
- template class IteratedHashBase<word64, HashTransformation>;
- template class IteratedHashBase<word64, MessageAuthenticationCode>;
-
- template class IteratedHashBase<word32, HashTransformation>;
- template class IteratedHashBase<word32, MessageAuthenticationCode>;
-#endif
-
-NAMESPACE_END