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Twisted Jacobi Intersections Curves

机译:扭曲的Jacobi相交曲线

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摘要

In this paper, the twisted Jacobi intersections which contains Jacobi intersections as a special case is introduced. We show that every elliptic curve over the prime field with three points of order 2 is isomor-phic to a twisted Jacobi intersections curve. Some fast explicit formulae for twisted Jacobi intersections curves in projective coordinates are presented. These explicit formulae for addition and doubling are almost as fast as the Jacobi intersections. In addition, the scalar multiplication can be more effective in twisted Jacobi intersections than in Jacobi intersections. Moreover, we propose new addition formulae which are independent of parameters of curves and more effective in reality than the previous formulae in the literature.
机译:在本文中,介绍了包含Jacobi交点的特例的扭曲Jacobi交点。我们证明,素数场上具有2个三阶点的每条椭圆曲线对于扭曲的Jacobi相交曲线都是同构的。给出了投影坐标系中扭曲的Jacobi相交曲线的一些快速显式公式。这些用于加法和加倍的显式公式几乎与Jacobi交集一样快。此外,与雅可比相交相比,扭曲雅可比相交中的标量乘法更有效。此外,我们提出了新的加法公式,该公式与曲线的参数无关,并且在实际中比文献中的先前公式更有效。

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