// ia32 optimized version
void DES_EDE3::Process(byte* out, const byte* in, word32 sz)
{
if (!isMMX) {
Mode_BASE::Process(out, in, sz);
return;
}
word32 blocks = sz / DES_BLOCK_SIZE;
if (mode_ == CBC)
if (dir_ == ENCRYPTION)
while (blocks--) {
r_[0] ^= *(word32*)in;
r_[1] ^= *(word32*)(in + 4);
AsmProcess((byte*)r_, (byte*)r_, (void*)Spbox);
memcpy(out, r_, DES_BLOCK_SIZE);
in += DES_BLOCK_SIZE;
out += DES_BLOCK_SIZE;
}
else
while (blocks--) {
AsmProcess(in, out, (void*)Spbox);
*(word32*)out ^= r_[0];
*(word32*)(out + 4) ^= r_[1];
memcpy(r_, in, DES_BLOCK_SIZE);
out += DES_BLOCK_SIZE;
in += DES_BLOCK_SIZE;
}
else
while (blocks--) {
AsmProcess(in, out, (void*)Spbox);
out += DES_BLOCK_SIZE;
in += DES_BLOCK_SIZE;
}
}
void ARC4::Process(byte* out, const byte* in, word32 length)
{
if (length == 0) return;
#ifdef DO_ARC4_ASM
if (isMMX) {
AsmProcess(out, in, length);
return;
}
#endif
byte *const s = state_;
word32 x = x_;
word32 y = y_;
if (in == out)
while (length--)
*out++ ^= MakeByte(x, y, s);
else
while(length--)
*out++ = *in++ ^ MakeByte(x, y, s);
x_ = x;
y_ = y;
}