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Erschienen in:
2008 | OriginalPaper | Buchkapitel
Another Approach to Pairing Computation in Edwards Coordinates
verfasst von : Sorina Ionica, Antoine Joux
Erschienen in: Progress in Cryptology - INDOCRYPT 2008
Verlag: Springer Berlin Heidelberg
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The recent introduction of Edwards curves has significantly reduced the cost of addition on elliptic curves. This paper presents new explicit formulae for pairing implementation in Edwards coordinates. We prove our method gives performances similar to those of Miller’s algorithm in Jacobian coordinates and is thus of cryptographic interest when one chooses Edwards curve implementations of protocols in elliptic curve cryptography. The method is faster than the recent proposal of Das and Sarkar for computing pairings on supersingular curves using Edwards coordinates.