Secure numerical and logical multi party operations: 2

We derive algorithms for efficient secure numerical and logical operations in the semi-honest model ensuring statistical or perfect security for secure multi-party computation (MPC). To derive our algorithms for trigonometric functions, we use basic mathematical laws in combination with properties of the additive encryption scheme, ie. linear secret sharing, in a novel way for the JOS scheme [23]. For division and logarithm, we use a new approach to compute a Taylor series at a fixed point for all numbers. Our empirical evaluation yields speed-ups for local computation of more than a factor of 100 for some operations compared to the state-of-the-art. (C) 2017 Elsevier Ltd. All rights reserved.


Published in:
Journal Of Information Security And Applications, 34, 207-217
Year:
2017
Publisher:
Amsterdam, Elsevier Science Bv
ISSN:
2214-2126
Keywords:
Laboratories:




 Record created 2017-10-09, last modified 2018-03-17


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