可签名的

In every policy, there must be some security authentication information,such as one policy Authorizer, one Licensee, one TimeStamp, one LifeTime and a digital Signature, and some policy management information:At last, this paper designs and implements a HywaveGuard models instance based on Windows OS.

每个策略都有策略发布者，接受者的证书，策略制定的时间戳及有效期，同时还要附上发布者的数字签名，这些信息用于保证策略的安全验证；每个策略还可包含策略管理命令及策略内容，这些信息用于保证有效的策略管理与节点间通信。最后，针对当前网络的实际情况，本文在Windows系统平台上设计与实现了HywaveGuard防火墙模型的一个实例。

Based on the discrete logarithm problem on cyclic group Z and the intractability of reversing a one-way Hash function, an improved scheme is proposed which can satisfy alt the desired security requirements, by using a provably secure shortened signature scheme.

基于循环群Z上离散时数困难问题以及单向Hash函数的不可逆性，利用可证安全的短签名方案，设计了一个新的能弥补H-C方案安全隐患的认证加密方案。

In stead of the ring Z〓 we construct the threshold schemes over a large prime field Z〓. When we need decrypt or sign, we transform the module from r to φ using a sample massage. The efficiency and implementability of the methods presented in this paper excel the exiting methods.

用一般大素域Z〓代替环Z〓建立门限秘密共享体制，在需要解密或签名时，利用样本消息实现从模r到模φ的转换，该方法的有效性和可实现性均优于现有方法。

Based on the elliptic curve cryptography and Shamir threshold mechanism, an anti-deception threshold signature scheme is proposed.

基于椭圆曲线密码体制，利用shamir的门限机制，提出了一种可以防欺诈的门限签名方案。

That Lotto, who was one of the most productive painters of his time, could work for thirty years without succumbing to the mighty influence of Titian's sumptuous color, is explained by the fact that during these years he was away from Venice, as is abundantly proved by documents and by the evidence of signed and dated works.

认为乐天，谁是其中一个最有生产力的画家，他的时间，可工作三十年没有屈服于强大的影响，提香的华丽色彩，是解释的事实，在这些年里，他离开威尼斯，作为是非常证明由文件和证据，签名并注明日期的工程。

In this paper, based on short signature, a new efficient identity-based proxy signcryption scheme with forward security and public verifiability is proposed.

本文基于短签名提出一种新的高效的具有前向安全和可公开验证特性的基于身份的代理签密方案。

Aiming at the actual need of impeach work, and on the basis of analyzing, concluding, summarizing and informing against the systematic current situation at present, the article structure the new model of electronic impeaching system, adopt group signature and bit commitment technology to realize each functions of the system respectively, and guarantee the security of accuser, such as anonymity, unforgeability, undeniable, unlinkability,traceability,etc.

论文针对检举工作的实际需要，在分析、归纳、总结了当前检举系统现状的基础上，构造了新型电子检举系统的模型，并分别采用群签名和比特承诺技术实现了系统的各项功能，保证了匿名性、不可伪造性、不可否认性、不相关性和可追踪性等安全性。

This paper proposes an efficient verifiably encrypted signature scheme without random oracles.

提出了一种高效的无随机预言机的可验证加密签名方案。

Classical scholars, though, feel no such reverence. They have called her "an illiterate with a higher degree who takes pleasure in castrating traditional Chinese culture"; one turned up at a book-signing wearing a T-shirt that read:"Confucius is deeply worried".

不过，研究古典文化的学者可没这么大的敬意，他们说她是&以阉割中国传统文化为乐事的高学历文盲&；有人穿了件T恤出现在她的签名售书现场，上面写着：&孔子很着急&。

The use of an X at the end of a letter to signify a koss goes back to the Middle Ages,when an illiterate person signed his or her name to marked documents and contracts with an X (which in church lore stands for Christ)and kissed the mark in the pressence of witnesses to affirm his or her sincerity .

在信的末尾用X代表吻，这一做法可追溯到中世纪。那时候，不识字的人用X在文件或合同上签名，并且当着证人们的面吻这个记号以表明自己的诚挚。吻和X这个十字形符号变成了同义词。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失