An Efficient Hardware Architecture for Multimedia Encryption and Authentication Using the Discrete Wavelet Transform

  • Authors:

  • Amit Pande;Joseph Zambreno

  • Affiliations:

  • -;-

  • Venue:
  • ISVLSI '09 Proceedings of the 2009 IEEE Computer Society Annual Symposium on VLSI
  • Year:
  • 2009

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Abstract

This paper introduces a zero-overhead encryption and authentication scheme for real-time embedded multimedia systems. The parametrized construction of the Discrete Wavelet Transform (DWT) compression block is used to introduce a free parameter in the design. It allows building a keyspace for lightweight multimedia encryption. The parametrization yields rational coefficients leading to an efficient fixed point hardware implementation. A clock speed of over 240 MHz was achieved on a Xilinx Virtex 5 FPGA. Comparison with existing approaches was performed to indicate the high throughput and low hardware overhead in adding the security feature to the DWT architecture.