查询词典 group scheme

The authors also construct a concrete scheme which is provablysecure assuming the underlying groups are bilinear group pair and the computational Co-DiffieHellman problem is hard.

在计算Co-Diffie-Hellman问题是困难的假设条件下，该方案被证明是安全的。

The basic concept of the proposed scheme is to find the union sets of the output ports of switches in the paths between the source processing node and each destination processing node in the multicast group.

我们所提出机制的基本观念是找出介於来源结点与在多点传播群组结点中，所经过交换器的输出埠联集集合。

Security analysis shows that this new scheme can not only resist the above-mentioned conspiracy attacks and forgery attacks essentially, but also provide anonymity and traceability simultaneously. Moreover, by constructing a secure distributed key generation protocol, the proposal realizes the unknowability of the group\'s secret.

分析表明：新方案能够根本抵抗合谋攻击和上述伪造签名攻击；在保证匿名性的同时可以真正实现签名成员身份的可追查性；通过引入可验证秘密共享并设计安全的分布式****生成协议，实现了****影子的可验证性以及群共享秘密的不可知性，系统安全性大大提高。

This paper has obtained following three results about the new scheme:(1) The hardness of recovering the private key from the public key is based on the hardness of the shortest vector problems of several lattices;(2) The hardness of forging a signature is equivalent to the hardness of the closest vector problem of some lattice;(3) Each signature will leak information on the private key,but the final shape of the unlimited leakage is just a group of complicated non-linear equations.

文中给出新方案的3个结果：(1)由公钥恢复出私钥的困难性基于若干格上的最小向量问题；(2)由公钥伪造签名的困难性等价于某个格上的最近向量问题；(3)每个签名值仍然会泄露私钥的一些信息，但无限制泄露的最终形式只是关于私钥的一组复杂的非线性方程。

With the introductory theories and basic methodology on competitive strategy in the beginning, based on the status and development trend of China" s cement industry, instructed by Poter" s competitive theory, the thesis brings forward Julong group s specific competitive strategy and covers the implementation scheme with adopting the stage analysis mode.

论文首先回顾了竞争战略研究方面的基础理论和方法，在探讨了中国水泥业的现状与发展趋势后，以波特的竞争战略理论为指导，采用阶段性战略分析模式，分析得出了江苏巨龙集团的竞争战略，并就具体的实施方案进行了论述。

A threshold signature scheme distributes the signing abilities to a group of signers, and avoids the system unsecurity.

门限签名方案将密钥进行分享，限制了由单个签名者所组成的系统的不安全性。

In order to decrease total optical length, a design scheme was employed by selecting mechanically compensated zoom lens with a negative compensator, shortening the focus length of variator and compensator, and increasing the distance between front group and variator. An initial configuration was obtained by solving equations of aberrations. According to aberration theory, the aberrations were corrected by using ZEMAX optical design software.

为缩短筒长，采用负组补偿偏离物像交换变焦结构，缩短变倍补偿系统各组元焦距，增加前固定组和变倍组间距的设计方案，通过解初级像差方程求得初始结构，依据像差理论，利用ZEMAX自动设计软件进行像差校正平衡。

In this part, as for the future cash management system of the Fangzhou group, we come up with the scheme with centralizing pattern, integrating pattern and organization construction.

第三节是本章的重点，对构建方舟公司未来资金管理体制提出了集中模式、集成模式和组织架构的方案。

A search strategy based on switch group is devised in this paper, which enhances the efficiency and accuracy of search;establishing a fast ratiocinating fault restoration model which is based on EMS data, and adopting the search strategy to form the connecting relation of the equipments in the power system dynamically, so it is not necessary to do special maintenance to the system when the frame of the network changes;perfecting the fault restoration modules and ensure that the restoration scheme accords with the situation of locale and the operating regulations and the system is practical;adopting flow to check the security of all the restorable paths of the load island, which provides the gists to choose the restorable paths.

本文提出了一种基于开关刀闸组的搜索策略，提高了搜索的效率和准确性；建立了基于EMS数据的快速推理故障恢复模型，通过网络搜索动态生成系统内各设备的网络连接关系，网架结构变化时无需对该系统特殊维护；完善了故障恢复步骤，使恢复方案确实符合现场实际情况及操作规程，具有实用性；采用潮流计算校验孤岛各恢复路径的安全性，为各条恢复路径选择提供依据。

The process basic scheme, configuration of the control system and its main functions are described. The master, controller and control net are reduplicated on purpose to improve the reliability of the control system, When TRT trips, one of the valves group for reducing gas pressure is opened fast to avoid the increase of blast furnace top pressure rapidly. In order to stabilize the roof pressure of the blast furnace during TRT oper...

为了提高控制系统的可靠性，系统的服务器、控制器及网络均按冗余方式配置；TRT跳闸时，为了不使高炉炉顶压力急剧上升，采用了减压阀组的紧急开放阀快速打开的控制策略；为了达到在TRT运行过程中稳定炉顶压力的目的，在可调静叶控制中使用了一种可初始化的回馈计算回路。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。