====== Implementation of ECDSA in Combo6X Card ======

**T. Davidovic**, M. Havlan, [[http://cs.felk.cvut.cz/webis/en/people/novotnym.html|M. Novotny]], and [[http://cs.felk.cvut.cz/webis/en/people/schmidt.html|J. Schmidt]]\\

Proceedings CD-ROM of Digital Technologies 2006, Zilina\\

{{:school:davidovic_dt2006:adder.png|}}

[{{school:davidovic_dt2006:davidovic_dt2006.bib|bib}}]
[{{school:davidovic_dt2006:davidovic_dt2006.pdf|paper}}]
[{{school:davidovic_dt2006:davidovic_dt2006.abstract.pdf|extended abstract}}]

**Abstract**: This paper describes imple-
mentation of a cryptographic coprocessor 
performing operations on elliptic curve 
points with affine coordinates in GF(2<sup>m</sup>). 
The coprocessor will be implemented in 
Xilinx Virtex II Pro  XC2VP50 on a PCI-X 
card Combo6X.  The goal is to compare 
the  performance of  solutions based on 
polynomial and normal bases  when im-
plemented into a complex system. Be-
cause  of this, the coprocessor has inter-
changeable arithmetic units  and a micro-
programmable  controller, allowing easy 
switching between both architectures. The 
paper describes  the basics of  the used 
algorithms, their  implementation and pro-
poses  measurement techniques for com-
paring the effectiveness of both variants in 
the context of a PC system.