签名

The undersigned further certifies under penalty of perjury that the said undersigned is not presently debarred from doing public construction work in the Commonwealth under the provisions of section twenty-nine F of Chapter twenty-nine, or any other applicable debarment provisions of any other chapter of the General Laws or any rule or regulation promulgated thereunder.

兹签名人进一步证明根据共和政体一般法第二十九章第二十九F节，或其它章节相关禁止条款，或其下颁布的规章制度，本签名人当前未被禁止从事公共建设事物，如有不实，当受伪证罪之罚。

You can choose a default signature if you have more than one signatures.

你可以选择默认的签名，如果您有一个以上的签名。

In this paper, the concept of network security and security structures of OSI and Internet is introduced, and various threats confronting the computer network are also discussed. Several kinds of network information security technologies, including firewall technology, virtual private network, intrusion detection system, data encryption technology, identity authentication and security protocol etc. are also examined. The security of internal network is the biggest problem in the construction of each network. The solution to this problem lies in setting up a firewall. The theory of a firewall and the approach to its actualization is studied. Intrusion detection system, an important part of the computer network security system, has gained extensive attention. IDS monitors the computer and network traffic for intrusion and suspicious activities. It not only detects the intrusion from the extranet hacker, but also the intranet users. The emergence of virtual private network paves the way for realizing secure connection of LAN quickly and at a relatively low cost. The concept, function, key techniques, including the tunnel technology, and the ways to realize VPN are expounded in this paper. Also introduced is the data encrypt network technology, which is called the soul of computer network security, such as digital digest, digital signature, digital certificate, digital encrypt arithmetic and so on. At the same time, the principle and the process of implementing network security by digital certificate and digital signature, the basic principle and characters of security protocols, and finally, three of the security protocols, concerning the security problems in network, IPsec, SLL and SET are analyzed in detail Computer network system should be a system of dynamic defence, both dynamic and static, passive as well as active, and even offensive, combined with management and technology.

本文系统地介绍了网络安全的概念、OSI及Internet的安全体系结构，并讨论了计算机网络面临的各种安全威胁；内部网络的安全问题是每个建网单位面临的最大问题，可以认为防火墙技术是解决网络安全的一个主要手段，本文研究了防火墙的原理及其实现手段；作为一种主动的防御措施，入侵检测系统作为网络系统安全的重要组成部分，得到了广泛的重视，TDS对计算机和网络资源上的恶意使用行为进行识别和响应，不仅检测来自外部的入侵行为，也监督内部用户的未授权活动；虚拟专用网技术的出现，为实现网络间的连接提供了快速安全但又相对便宜的手段，本文较深入的探讨了实现VPN的隧道技术，并对VPN的概念、功能、实现途径、基本构成、关键技术及发展前景等问题进行了全面论述；数据加密技术是网络安全核心技术之一，本文从数据加密算法、数字摘要、数字签名及数字证书等几方面简要介绍了数据加密技术，并分析用数字证书和数字签名实现网络安全的原理和过程；对安全协议的基本原理、主要特点进行了较为深入的研究，并就网络的安全性问题剖析了三种安全协议：IPsec协议、SLL协议和SET协议。

Up to on March 21, share 117585 netizens that come from countrywide each district to be in " support ' purify network bodyguard child ' the autograph on net of 10 thousand mothers " division sign, complete province mother people the information that inform against amounts to many 8680, involve space of website of much home business, specific place website, individual, include character, picture, video, move free wait for multiform bad news.

截至3月21日，共有来自全国各地的117585名网民在"支持'净化网络护卫孩子'万名母亲网上签名"区签名，全省母亲们举报的信息达8680多条，涉及多家商业网站、个别地方网站、个人空间，包括文字、图片、视频、动漫等各种形式的不良信息。

The research of the elliptic curve applied to special signatures is only at start.

因此，深入研究椭圆曲线数字签名及其在特殊签名中的应用，具有深远的意义。

The basic technology of PKI include encipher digital signature data integrity mechanism digital envelope double digital signature, digital certificate etc.

PKI的基础技术包括加密、数字签名、数据完整性机制、数字信封、双重数字签名，数字证书等。

Below you will find a facsimile of his signature, which I ask you to regard as my own.

下面是他的签名传真件，请惠予留意，该签名效果与我的相同。

Below you will find a facsimile of his signature, which I ask you to regard asmy own.

下面是他的签名传真件，请惠予留意，该签名效果与我的相同。

A person in their firm name or fictitious name in the bill signed, the signer should be responsible bill, as its my name on the bill signer.

1某人以其商号名称或虚构之名在汇票上签名，签名人应对汇票负责，如同其以本人名义在汇票上签名者。

Moreover, this article has also realized some fundamental operations in RSA signature algorithm, provided the module and the connection for the RSA signature algorithm realization.

另外，本文还实现了RSA签名算法中的一些基本运算，为RSA签名算法的实现提供了模块与接口。

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％。