i2pd/aes.cpp

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2014-05-06 20:22:22 +04:00
#include "aes.h"
namespace i2p
{
namespace crypto
{
void CBCEncryption::Encrypt (int numBlocks, const ChipherBlock * in, ChipherBlock * out)
{
for (int i = 0; i < numBlocks; i++)
{
m_LastBlock.ll[0] ^= in[i].ll[0];
m_LastBlock.ll[1] ^= in[i].ll[1];
m_ECBEncryption.ProcessData (m_LastBlock.buf, m_LastBlock.buf, 16);
out[i] = m_LastBlock;
}
}
void CBCDecryption::Decrypt (int numBlocks, const ChipherBlock * in, ChipherBlock * out)
{
for (int i = 0; i < numBlocks; i++)
{
m_ECBDecryption.ProcessData (out[i].buf, in[i].buf, 16);
out[i].ll[0] ^= m_IV.ll[0];
out[i].ll[1] ^= m_IV.ll[1];
m_IV = in[i];
}
}
}
}