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author | weidai <weidai@57ff6487-cd31-0410-9ec3-f628ee90f5f0> | 2002-10-06 03:58:13 +0000 |
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committer | weidai <weidai@57ff6487-cd31-0410-9ec3-f628ee90f5f0> | 2002-10-06 03:58:13 +0000 |
commit | a2f7dfe3afb5c056fdbb2a7e3f2e20753771fa95 (patch) | |
tree | 0c0531b9afb27bb170a0ec1f6ec4d56e35368e90 /modes.h | |
parent | 54aac9c52276331c818cebd420354c5e281d363a (diff) | |
download | cryptopp-a2f7dfe3afb5c056fdbb2a7e3f2e20753771fa95.tar.gz |
bug fix and optimization
git-svn-id: svn://svn.code.sf.net/p/cryptopp/code/trunk/c5@8 57ff6487-cd31-0410-9ec3-f628ee90f5f0
Diffstat (limited to 'modes.h')
-rw-r--r-- | modes.h | 14 |
1 files changed, 1 insertions, 13 deletions
@@ -142,19 +142,7 @@ class CTR_ModePolicy : public ModePolicyCommonTemplate<AdditiveCipherAbstractPol void SeekToIteration(dword iterationCount); IV_Requirement IVRequirement() const {return STRUCTURED_IV;} - static inline void IncrementCounterByOne(byte *output, const byte *input, unsigned int s) - { - for (int i=s-1, carry=1; i>=0; i--) - carry = !(output[i] = input[i]+1); - } - inline void ProcessMultipleBlocks(byte *output, const byte *input, unsigned int n) - { - unsigned int s = BlockSize(), j = 0; - for (unsigned int i=1; i<n; i++, j+=s) - IncrementCounterByOne(m_counterArray + j + s, m_counterArray + j, s); - m_cipher->ProcessAndXorMultipleBlocks(m_counterArray, input, output, n); - IncrementCounterByOne(m_counterArray, m_counterArray + s*(n-1), s); - } + inline void ProcessMultipleBlocks(byte *output, const byte *input, unsigned int n); SecByteBlock m_counterArray; }; |