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In this paper, a fast hardware implementation of multiplicative inversion in GF(2m) using the optimal normal basis of type II is presented. The approach followed is based on the Sunar-Koc multiplier and the Itoh-Tsujii algorithm. Our design is able to compute multiplicative inversion in GF(2233) using only 26 clock cycles.
In this paper, we present a new block cipher, referred as PUFFIN2, that is designed to be used with applications requiring very low circuit area. PUFFIN2 is designed to be implemented exclusively with CMOS technologies and in a serialized architecture, so that the maximum reuse of hardware components is achieved resulting in a very compact implementation. PUFFIN2 has a block size of 64 bits and a...
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