查询词典 encryption

This paper analyzes the security in a mobile telephone network with emphasis on its identification authentication, data encryption, key assignation and integrity authentication.

分析了移动通信网络中的不安全因素，重点讨论了移动通信网络中的身份认证和密钥分配，数据加密与完整性检测方案，并对其安全性进行了详细分析。

This article presents some background knowledge, including the symmetric and asymmetric encryption system in cryptography field, the developments of the elliptic curve cryptosystem and PKI.

本文介绍了密码学领域里的对称加密体制和非对称体制、椭圆曲线的发展现状和PKI架构。

Yet more POWERFUL FUNCTIONS: XML forms/templates/export; HTML toolbar/menu/insert-code/export-to-Website (opt:dynamic tree)/etc; self-updating fields; template function; hyperlinked history/bookmarks/favorites lists; undo/redo; high-security encryption; image-compression; print preview; drag-drop; zoom; calendar; a multitude of import/export option; auto-save;'browser-style' hyperlinks to files, directories, WWW,email, ftp, news, phone (with autodial - inc.prefix), user-defined; etc. Import IE bookmarks and Windows shortcuts.

然而，更强大的功能： XML的表格/模板/出口；的HTML工具栏/菜单/插入代码/出口到网站/等；自我更新的领域；模板功能；超连结的历史/书签/最爱名单；还原/重做；高安全性加密；图像压缩；打印预览；拖放；变焦；日历；千头万绪，导入/导出选项；自动保存；浏览器式'的超文本链接文件，目录的WWW ，电子邮件的FTP ，新闻，电话（与自动拨号-i nc.prefix），用户定义；等进口即书签和W indows的快捷方式。

Provable Security is a formal method for proving the security of cryptographic schemes, in which the difficulty of breaking a particular scheme is formally related to that of solving a widely believed computational hard problem. Provable security has already become an important theme of theoretical researches in modern cryptography. This dissertation investigates the provable security of public-key encryptions and hybrid encryptions of asymmetric and symmetric encryptions. This includes the various formal security notions and the constructions can be proved to achieve them. Among the constructions, hybrid encryptions are themselves an important way to obtain public-key encryption schemes with chosen ciphertext security. The main results are as follows:(1) The one-wayness of the trapdoor one-way function in NTRU depends on the randomness of the session key, which is different from previous ones. Based on this observation, a new kind of trapdoor one-way function, trapdoor one-way functions with an auxiliary random variable is proposed.

可证明安全性是一种证明密码学方案安全性的形式化方法，它将密码学方案的安全性归约为公认的计算难题，已成为现代密码学领域中理论工作的主线，本文主要研究公钥加密与单双钥混合加密的可证明安全性，这包括它们的各种形式化安全性定义以及达到这些安全性定义的方案构造，而单双钥混合加密本身也是一种构造选择密文安全公钥加密的重要方法，本文得到的主要结果如下：(1)在研究NTRU公钥加密的特殊性基础上，对于公钥加密的陷门单向函数加密模型进行了扩展，提出了具有辅助陷门单向函数的概念，并将其扩展到多元的情况，讨论了可能的密码学用途。

In this paper, the military secrect communication is discussed firstly, in which m-sequence and Des encryption algorithm and their fulfillment in AYR embedded-microchip controller is discussed.

文中首先讨论了军事保密通信，其中讨论了m序列和des加密算法，以及它们在单片机中的实现。

Its encryption method is to express each of the letters in the alphabet with this character in the back of the first k-letter substitution.

它的加密方法是将明文中的每个字母用此字符在字母表中后面的第k个字母替代。

This is a good document encryption software that can make your documents to be subject to stringent privacy protection.

这个是一款不错的文件加密软件，能让你的隐私文件受到严密的保护。

We use symmetrical cryptography, bilinear mapping, hash function, identity-based encryption as basic knowledge tools.

在本文的研究工作中，用到了分组密码、双线性映射、单向散列函数、基于身份的加密等知识工具。

The Identity-Based Encryption based on bilinear mapping which proposed by Boneh and Franklin is analyzed in detail. Some applications of IBE are achieved with simple variations of BF-IBE.

对Boneh和Franklin提出的基于双线性映射的IBE方案进行了详细地分析，利用双线性对的性质，设计了此方案的一些简单变形实现IBE系统的某些实际应用。

In the proposed scheme, each user obtains his decryption key based on his identity information from the key distribution center, and the bilinear mapping on Elliptic Curve is utilized to construct the broadcast encryption algorithm and decryption algorithm.

方案根据用户的身份信息来分配相应的个人解密密钥，并利用椭圆曲线上的双线性映射构造广播加密和解密算法。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。