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/***************************************************************************
* Copyright (C) 2006 *
* *
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
* This program is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
* GNU General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License *
* along with this program; if not, write to the *
* Free Software Foundation, Inc., *
* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
***************************************************************************/
/**
@author Svetlin Manavski <[email protected]>
*/
// includes, system
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <math.h>
// includes, project
#include <cutil.h>
#include "sbox_E.h"
#include "sbox_D.h"
#include <aesEncrypt128_kernel.h>
#include <aesDecrypt128_kernel.h>
#include <aesEncrypt256_kernel.h>
#include <aesDecrypt256_kernel.h>
extern "C" void aesEncryptHandler128(unsigned *d_Result, unsigned *d_Input, int inputSize) {
dim3 threads(BSIZE, 1);
dim3 grid((inputSize/BSIZE)/4, 1);
aesEncrypt128<<< grid, threads >>>( d_Result, d_Input, inputSize);
CUDA_SAFE_CALL( cudaThreadSynchronize() );
}
extern "C" void aesDecryptHandler128(unsigned *d_Result, unsigned *d_Input, int inputSize) {
dim3 threads(BSIZE, 1);
dim3 grid((inputSize/BSIZE)/4, 1);
aesDecrypt128<<< grid, threads >>>( d_Result, d_Input, inputSize);
CUDA_SAFE_CALL( cudaThreadSynchronize() );
}
extern "C" void aesEncryptHandler256(unsigned *d_Result, unsigned *d_Input, int inputSize) {
dim3 threads(BSIZE, 1);
dim3 grid((inputSize/BSIZE)/4, 1);
aesEncrypt256<<< grid, threads >>>( d_Result, d_Input, inputSize);
CUDA_SAFE_CALL( cudaThreadSynchronize() );
}
extern "C" void aesDecryptHandler256(unsigned *d_Result, unsigned *d_Input, int inputSize) {
dim3 threads(BSIZE, 1);
dim3 grid((inputSize/BSIZE)/4, 1);
aesDecrypt256<<< grid, threads >>>( d_Result, d_Input, inputSize);
CUDA_SAFE_CALL( cudaThreadSynchronize() );
}
extern "C" int aesHost(unsigned char* result, const unsigned char* inData, int inputSize, const unsigned char* key, int keySize, bool toEncrypt)
{
if (inputSize < 256)
return -1;
if (inputSize % 256 > 0)
return -11;
if (keySize != 240 && keySize != 176)
return -2;
if (!result || !inData || !key)
return -3;
int deviceCount;
CUDA_SAFE_CALL_NO_SYNC(cudaGetDeviceCount(&deviceCount));
if (deviceCount == 0) {
fprintf(stderr, "There is no device.\n");
exit(EXIT_FAILURE);
}
int dev;
for (dev = 0; dev < deviceCount; ++dev) {
cudaDeviceProp deviceProp;
CUDA_SAFE_CALL_NO_SYNC(cudaGetDeviceProperties(&deviceProp, dev));
if (deviceProp.major >= 1)
break;
}
if (dev == deviceCount) {
fprintf(stderr, "There is no device supporting CUDA.\n");
exit(EXIT_FAILURE);
}
else
CUDA_SAFE_CALL(cudaSetDevice(dev));
// allocate device memory
unsigned * d_Input;
CUDA_SAFE_CALL( cudaMalloc((void**) &d_Input, inputSize) );
// the size of the memory for the key must be equal to keySize (every thread copies one key byte to shared memory)
unsigned * d_Key;
CUDA_SAFE_CALL( cudaMalloc((void**) &d_Key, keySize) );
unsigned int ext_timer = 0;
CUT_SAFE_CALL(cutCreateTimer(&ext_timer));
CUT_SAFE_CALL(cutStartTimer(ext_timer));
// copy host memory to device
CUDA_SAFE_CALL( cudaMemcpy(d_Input, inData, inputSize, cudaMemcpyHostToDevice) );
CUDA_SAFE_CALL( cudaMemcpy(d_Key, key, keySize, cudaMemcpyHostToDevice) );
//texture
cudaChannelFormatDesc chDesc;
chDesc.x = 32;
chDesc.y = 0;
chDesc.z = 0;
chDesc.w = 0;
chDesc.f = cudaChannelFormatKindUnsigned;
texEKey.normalized = false;
texDKey.normalized = false;
texEKey128.normalized = false;
texDKey128.normalized = false;
CUDA_SAFE_CALL( cudaBindTexture( 0, &texEKey128, d_Key, &chDesc, (size_t)keySize) );
CUDA_SAFE_CALL( cudaBindTexture( 0, &texDKey128, d_Key, &chDesc, (size_t)keySize) );
CUDA_SAFE_CALL( cudaBindTexture( 0, &texEKey, d_Key, &chDesc, (size_t)keySize) );
CUDA_SAFE_CALL( cudaBindTexture( 0, &texDKey, d_Key, &chDesc, (size_t)keySize) );
// allocate device memory for result
unsigned int size_Result = inputSize;
unsigned * d_Result;
CUDA_SAFE_CALL( cudaMalloc((void**) &d_Result, size_Result) );
CUDA_SAFE_CALL( cudaMemset(d_Result, 0, size_Result) );
unsigned int int_timer = 0;
CUT_SAFE_CALL(cutCreateTimer(&int_timer));
CUT_SAFE_CALL(cutStartTimer(int_timer));
if (!toEncrypt) {
printf("\nDECRYPTION.....\n\n");
if (keySize != 240)
aesDecryptHandler128( d_Result, d_Input, inputSize);
else
aesDecryptHandler256( d_Result, d_Input, inputSize);
} else {
printf("\nENCRYPTION.....\n\n");
if (keySize != 240)
aesEncryptHandler128( d_Result, d_Input, inputSize);
else
aesEncryptHandler256( d_Result, d_Input, inputSize);
}
CUT_SAFE_CALL(cutStopTimer(int_timer));
printf("GPU processing time: %f (ms)\n", cutGetTimerValue(int_timer));
CUT_SAFE_CALL(cutDeleteTimer(int_timer));
// check if kernel execution generated and error
CUT_CHECK_ERROR("Kernel execution failed");
// copy result from device to host
CUDA_SAFE_CALL(cudaMemcpy(result, d_Result, size_Result, cudaMemcpyDeviceToHost) );
CUT_SAFE_CALL(cutStopTimer(ext_timer));
printf("Total processing time: %f (ms)\n\n", cutGetTimerValue(ext_timer));
CUT_SAFE_CALL(cutDeleteTimer(ext_timer));
// cleanup memory
CUDA_SAFE_CALL(cudaFree(d_Input));
CUDA_SAFE_CALL(cudaFree(d_Key));
CUDA_SAFE_CALL(cudaFree(d_Result));
return 0;
}
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