1662

Fast Disk Encryption through GPGPU Acceleration

Giovanni Agosta, Alessandro Barenghi, Fabrizio D. Santis, Andrea D. Biagio, Gerardo Pelosi
Politecnico di Milano
(December 2009), pp. 102-109

@conference{agosta2010fast,

   title={Fast disk encryption through GPGPU acceleration},

   author={Agosta, G. and Barenghi, A. and De Santis, F. and Di Biagio, A. and Pelosi, G.},

   booktitle={Parallel and Distributed Computing, Applications and Technologies, 2009 International Conference on},

   pages={102–109},

   year={2010},

   organization={IEEE}

}

We present the design and performance analysis of a GPU-optimized implementation of a disk encryption application employing the XTS mode of operation applied together with the Twofish algorithm within the well-known TrueCrypt suite. We show how to correctly tune the design parameters, including data allocation, thread packing, and parallelization strategy. Overall, our implementation of TrueCrypt running on a NVidia GTX260 GPU outperforms by 67% the baseline implementation running on a four core CPU.
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