Hyperelliptic curve cryptography with genus larger than one has not been seriously considered for cryptographic purposes because many existing implementations are significantly slower than elliptic curve versions with the same level of security. In this paper, the first ever complete hardware implementation of a hyperelliptic curve coprocessor is described. This coprocessor is designed for genu...

OF THE DISSERTATION Design and Architecture of Automatically-generated Energy-reducing Coprocessors

Halftoning is a fairly slow process when executed by software on conventional processors. To speed up halftoning, a halftoning algorithm has been developed and integrated into a dedicated hardware architecture. This paper describes the implementation of the architecture with a XILINX Field Programmable Gate Array (FPGA) and compares its performances with results obtained by a software implement...

Software defined Radio platform developed so far are designed for particular application. Current reconfigurable computing technology allows designers to implement complete embedded computing systems on a single FPGA. This paper concentrates on designing a reconfigurable platform which consists of reconfigurable coprocessors that can be used in various applications. The architecture that we hav...

Michalis D. Galanis, Gregory Dimitroulakos, Costas E. Goutis VLSI Design Laboratory, ECE Dept., University of Patras, Greece e-mail: [email protected] Abstract. The speedups and the energy reductions achieved in a generic single-chip microprocessor system by employing a high-performance data-path are presented. The data-path acts as a coprocessor that accelerates computational intensive k...

: The Altera Cyclone family of FPGA provides the ability to perform run time reconfiguration which is known as Dynamic Reconfiguration. Current technology allows designers to implement complete embedded computing systems on a single FPGA. Using an FPGA as the implementation platform introduces greater flexibility into the design process and allows a new approach to embedded system design. Since...

We study the problem of private outsourced sorting of encrypted data. We start by proposing a novel sorting protocol that allows a user to outsource his data to a cloud server in an encrypted form and then request the server to perform computations on this data and sort the result. To perform the sorting the server is assisted by a secure coprocessor with minimal computational and memory resour...