In this paper, we show that it is possible and,\nindeed, feasible to use secure multiparty computation (SMC)\nfor calculating the probability of a collision between two\nsatellites. For this purpose, we first describe basic floating\npoint arithmetic operators (addition and multiplication) for\nmultiparty computations. The operators are implemented on\nthe Share mind SM Cengine.We discuss the implementation\ndetails, provide methods for evaluating example elementary\nfunctions (inverse, square root, exponentiation of e, error\nfunction). Using these primitives, we implement a satellite\nconjunction analysis algorithm and give benchmark results\nfor the primitives as well as the conjunction analysis itself.
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