Ejemplos de aes_hw_cpu_decrypt_32_blocks en C++ (Cpp)

Ejemplo n.º 1

Archivo: Cipher.cpp Proyecto: wyrover/VeraCrypt

	void CipherAES::DecryptBlocks (byte *data, size_t blockCount) const
	{
		if (!Initialized)
			throw NotInitialized (SRC_POS);

#ifdef TC_AES_HW_CPU
		if ((blockCount & (32 - 1)) == 0
			&& IsHwSupportAvailable())
		{
			while (blockCount > 0)
			{
				aes_hw_cpu_decrypt_32_blocks (ScheduledKey.Ptr() + sizeof (aes_encrypt_ctx), data);

				data += 32 * GetBlockSize();
				blockCount -= 32;
			}
		}
		else
#endif
			Cipher::DecryptBlocks (data, blockCount);
	}

Ejemplo n.º 2

Archivo: Crypto.c Proyecto: janethan/VeraCrypt

void DecipherBlocks (int cipher, void *dataPtr, void *ks, size_t blockCount)
{
	byte *data = dataPtr;
#if defined (TC_WINDOWS_DRIVER) && !defined (_WIN64)
	KFLOATING_SAVE floatingPointState;
#endif

	if (cipher == AES
		&& (blockCount & (32 - 1)) == 0
		&& IsAesHwCpuSupported()
#if defined (TC_WINDOWS_DRIVER) && !defined (_WIN64)
		&& NT_SUCCESS (KeSaveFloatingPointState (&floatingPointState))
#endif
		)
	{
		while (blockCount > 0)
		{
			aes_hw_cpu_decrypt_32_blocks ((byte *) ks + sizeof (aes_encrypt_ctx), data);

			data += 32 * 16;
			blockCount -= 32;
		}

#if defined (TC_WINDOWS_DRIVER) && !defined (_WIN64)
		KeRestoreFloatingPointState (&floatingPointState);
#endif
	}
	else
	{
		size_t blockSize = CipherGetBlockSize (cipher);
		while (blockCount-- > 0)
		{
			DecipherBlock (cipher, data, ks);
			data += blockSize;
		}
	}
}