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Fix the Rijndael timing attack counter measure

pull/154/head
Pierre Lestringant 2016-04-06 15:51:17 +02:00
parent d8b02cfaaf
commit 9f335d719e
1 changed files with 2 additions and 2 deletions
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4
rijndael.cpp
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@ -391,7 +391,7 @@ void Rijndael::Enc::ProcessAndXorBlock(const byte *inBlock, const byte *xorBlock
// timing attack countermeasure. see comments at top for more details // timing attack countermeasure. see comments at top for more details
const int cacheLineSize = GetCacheLineSize(); const int cacheLineSize = GetCacheLineSize();
unsigned int i; unsigned int i;
word32 u = 0; volatile word32 u = 0;
#if defined(CRYPTOPP_ALLOW_UNALIGNED_DATA_ACCESS) || defined(CRYPTOPP_ALLOW_RIJNDAEL_UNALIGNED_DATA_ACCESS) #if defined(CRYPTOPP_ALLOW_UNALIGNED_DATA_ACCESS) || defined(CRYPTOPP_ALLOW_RIJNDAEL_UNALIGNED_DATA_ACCESS)
for (i=0; i<2048; i+=cacheLineSize) for (i=0; i<2048; i+=cacheLineSize)
#else #else
@ -467,7 +467,7 @@ void Rijndael::Dec::ProcessAndXorBlock(const byte *inBlock, const byte *xorBlock
// timing attack countermeasure. see comments at top for more details // timing attack countermeasure. see comments at top for more details
const int cacheLineSize = GetCacheLineSize(); const int cacheLineSize = GetCacheLineSize();
unsigned int i; unsigned int i;
word32 u = 0; volatile word32 u = 0;
#if defined(CRYPTOPP_ALLOW_UNALIGNED_DATA_ACCESS) || defined(CRYPTOPP_ALLOW_RIJNDAEL_UNALIGNED_DATA_ACCESS) #if defined(CRYPTOPP_ALLOW_UNALIGNED_DATA_ACCESS) || defined(CRYPTOPP_ALLOW_RIJNDAEL_UNALIGNED_DATA_ACCESS)
for (i=0; i<2048; i+=cacheLineSize) for (i=0; i<2048; i+=cacheLineSize)
#else #else