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Since their introduction in constructive cryptographic applications, pairings over (hyper)elliptic curves are at the heart of an ever increasing number of protocols. With software implementations being rather slow, the study of hardware architectures became an active research area. In this paper, we discuss several algorithms to compute the etaT pairing in characteristic three and suggest further...
Field-programmable circuits now have a capacity that allows them to accelerate floating-point computing, but are still missing core libraries for it. In particular, there is a need for an equivalent to the mathematical library (libm) available with every processor and providing implementations of standard elementary functions such as exponential, logarithm or sine. This is all the more important as...
The study of specific hardware circuits for the evaluation of floating-point elementary functions was once an active research area, until it was realized that these functions were not frequent enough to justify dedicating silicon to them. Research then turned to software functions. This situation may be about to change again with the advent of reconfigurable co-processors based on field-programmable...
For applications requiring a large dynamic range, real numbers may be represented either in floating-point (FP), or in the logarithm number system (LNS). Which system is best for a given application is difficult to know in advance, because the cost and performance of LNS operators depend on the target accuracy in a highly non linear way. In doubt, designers would choose floating-point. This article...
A parameterized floating point exponential operator is presented. In single precision, it uses a small fraction of the FPGA's resources and has a smaller latency than its software equivalent on a high-end processor, and ten times the throughput in pipelined version. Previous work had shown that FPGAs could use massive parallelism to balance the poor performance of their basic floating-point operators...
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