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Merge pull request #154 from plestrin/master 

Fix the Rijndael timing attack counter measure
pull/157/head
Jeffrey Walton 2016-04-07 17:58:36 -05:00
parent d8b02cfaaf 9f335d719e
commit 1700f440af
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
const int cacheLineSize = GetCacheLineSize();
unsigned int i;
word32 u = 0;
volatile word32 u = 0;
#if defined(CRYPTOPP_ALLOW_UNALIGNED_DATA_ACCESS) || defined(CRYPTOPP_ALLOW_RIJNDAEL_UNALIGNED_DATA_ACCESS)
for (i=0; i<2048; i+=cacheLineSize)
#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
const int cacheLineSize = GetCacheLineSize();
unsigned int i;
word32 u = 0;
volatile word32 u = 0;
#if defined(CRYPTOPP_ALLOW_UNALIGNED_DATA_ACCESS) || defined(CRYPTOPP_ALLOW_RIJNDAEL_UNALIGNED_DATA_ACCESS)
for (i=0; i<2048; i+=cacheLineSize)
#else