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use AES-NI in new CBC encryption

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orignal 2014-05-08 21:43:08 -04:00
parent 63bf67ba95
commit 95013e95a9
2 changed files with 21 additions and 8 deletions
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14
aes.cpp
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@ -7,7 +7,15 @@ namespace crypto
{
#ifdef __x86_64__
ECBCryptoAESNI::ECBCryptoAESNI ()
{
m_KeySchedule = m_UnalignedBuffer;
uint8_t rem = ((uint64_t)m_KeySchedule) & 0x0f;
if (rem)
m_KeySchedule += (16 - rem);
}
#define KeyExpansion256 \
"pshufd $0xff, %%xmm2, %%xmm2 \n" \
"movaps %%xmm1, %%xmm4 \n" \
@ -159,7 +167,7 @@ namespace crypto
{
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);
m_ECBEncryption.Encrypt (&m_LastBlock, &m_LastBlock);
out[i] = m_LastBlock;
}
}
@ -177,7 +185,7 @@ namespace crypto
for (int i = 0; i < numBlocks; i++)
{
ChipherBlock tmp = in[i];
m_ECBDecryption.ProcessData (out[i].buf, in[i].buf, 16);
m_ECBDecryption.Decrypt (in + i, out + i);
out[i].ll[0] ^= m_IV.ll[0];
out[i].ll[1] ^= m_IV.ll[1];
m_IV = tmp;