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Systolic Multipliers for Finite Fields GF(2m)

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3 Author(s)
Yeh, C.-S. ; Department of Electrical Engineering, University of Southern California ; Reed, Irving S. ; Truong, T.K.

Two systolic architectures are developed for performing the product–sum computation AB + C in the finite field GF(2m) of 2melements, where A, B, and C are arbitrary elements of GF(2m). The first multiplier is a serial-in, serial-out one-dimensional systolic array, while the second multiplier is a parallel-in, parallel-out two-dimensional systolic array. The first multiplier requires a smaller number of basic cells than the second multiplier. The second multiplier heeds less average time per computation than the first multiplier if a number of computations are performed consecutively. To perform single computations both multipliers require the same computational time. In both cases the architectures are simple and regular and possess the properties of concurrency and modularity. As a consequence they are well suited for use in VLSI systems.

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Computers, IEEE Transactions on  (Volume:C-33 ,  Issue: 4 )