查询词典 elliptic function

Digital signature ; proxy digital signature ; discrete logarithmic problems ; elliptic curve discrete logarithmic problems ; elliptic curve digital signature algorithm

数字签名；代理数字签名；离散对数；椭圆曲线离散对数；椭圆曲线数字签名

This scheme is based on the elliptic curve of non singular elliptic curve over finite field, and with its security, it can be widely used in the fields as network communication, electronic commerce and IC card.

同时，该方案将自证明公钥体制推广到椭圆曲线域，同样长度的密钥具有更高的安全性。在网络通信、电子商务以及IC卡等领域具有广泛的应用前景。

The elliptic curve discrete logarithm of non singular elliptic curve over finite field has no efficient attack up to now, which made it cannot be widely applied in cryptography.

目前，在有限域上非奇异椭圆曲线离散对数问题还没有有效的攻击方法，使其在加密技术中得到了广泛应用。

Leaf blade elliptic to broadly elliptic, 10-17 × 5-9 cm; peduncle and branches of inflorescence thick.

叶片椭圆形到宽椭圆形， 10-17 * 5-9 厘米；花序厚的花序梗和分枝。

Leaves palmately 3(-5)-foliolate; stipules membranous, lanceolate, ca. 8 mm, caducous; petiole 8-20 cm; terminal petiolule 2-5 cm, lateral petiolules 5-20 mm; leaflet blades ovate, elliptic, obovate, or elliptic-ovate, 7-15 × 4-8 cm, papery, sparsely pubescent only on nerves, glabrescent, base broadly cuneate to obtuse, margins with 2 or 3 teeth per cm, apex acute or caudate-acuminate.

叶具掌状3(-5)小叶；托叶膜质，披针形，约8毫米，早落；叶柄8-20厘米；顶生小叶柄2-5厘米，侧生小叶柄5-20毫米；小叶叶片卵形，椭圆形，，或椭圆状卵形， 7-15 * 4-8 厘米，纸质，只在叶脉具稀疏短柔毛，后脱落，基部宽楔形到钝，边缘每厘米具2或3牙齿，先端锐尖或尾状渐尖。

On the one hand, we improve the mixed having and ternary method to express n from the standard non-singular elliptic curve with character 2. On the other hand, we improve the mixed binary and ternary method to express n from the standard elliptic curve with character more than 3 , and we generalize the mixed binary, ternary and quinary method to express n.

一方面从特征是2的有限域上的标准非奇异椭圆曲线的角度出发，改进了n的半点和三进制的形式；另一方面从特征大于3的有限域上的标准椭圆曲线的角度出发，改进了n的二进制和三进制的混合形式，并推广到n的二进制、三进制和五进制的混合形式。

By investigating the elliptic curve cryptosystems, the problems are reduced the fast computations of scalar multiplication of the elliptic curve.

通过对椭圆曲线密码体制的研究，将快速实现椭圆曲线密码的问题归结为标量乘法的实现效率。

In chapter two, the fast implementation problems of the elliptic curve cryptosystems are studied. In this chapter, the problems are firstly reduced to the computations of the scalar multiplication of the elliptic curves.

第二章首先通过研究各种椭圆曲线密码体制，将椭圆曲线密码的快速实现问题归结为对标量乘法的计算，然后简单概述了标量乘法快速运算的一般算法。

Leaves elliptic or elliptic-lanceolate, apex caudate; bracteoles spiny, 2-parted at base; pseudostaminode serrulate at apex.

叶椭圆形或椭圆形披针形，先端尾状；小苞片多刺，2深裂的在基部；假退化雄蕊有细锯齿的在先端。

Leaves alternate, narrowly elliptic-oblanceolate or narrowly elliptic, margin sinuate, cartilaginous, glabrescent.

叶互生，狭椭圆形倒披针形的或狭椭圆形，具深波状的边缘，软骨质，脱落无毛。

The system can be widely used in belt weighing and batching process control,etc.

介绍了基于智能模糊控制的嵌入式配料系统的设计方法，对模糊PID控制过程和系统调零作了重点的讨论，同时给出了PID控制的程序流程图和系统定长调零子程序。

"I dunno," she answered,"but if you show me aroun', I'll recognize it from the lighthouse just outside the porthole."

"我不知道，"她回答说，"如果你能带我转转，我能认出来的，因为灯塔就在舷窗外。"