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The Eta Pairing Revisited

机译:再次探讨Eta配对

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摘要

In this paper, we simplify and extend the Eta pairing, originally discovered in the setting of supersingular curves by Barreto , to ordinary curves. Furthermore, we show that by swapping the arguments of the Eta pairing, one obtains a very efficient algorithm resulting in a speed-up of a factor of around six over the usual Tate pairing, in the case of curves that have large security parameters, complex multiplication by an order of$ BBQ (sqrt -3)$, and when the trace of Frobenius is chosen to be suitably small. Other, more minor savings are obtained for more general curves.
机译:在本文中,我们将由Barreto在超奇异曲线的设置中最初发现的Eta配对简化并扩展到普通曲线。此外,我们表明,通过交换Eta配对的参数,可以得到一种非常有效的算法,在安全参数较大,曲线复杂的情况下,该算法比通常的Tate配对提高了约6倍。乘以BBQ(sqrt -3)$的阶数,并且当选择Frobenius的迹线时要适当小。另外,对于更一般的曲线,可以节省更多的钱。

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