数据加密算法

基本解释 (translations)

dea

与数据加密算法相关的网络例句 [注：此内容来源于网络，仅供参考]

This paper offered two pieces of practical arithmetic about encrypting of data by analyzing theory based on encrypting of data.

通过分析基于数据的加密原理，本文给出了两个较实用的数据加密算法：公钥加密和多步加密算法。

In addition, algorithms used in PBE were discussed in details, including International Data Encryption Algorithm, Advanced Encryption Standard of U.S., safe Hash function named SHA-1, Pseudo Random Number Generator.The modes of operation in blok cipher,such as Electronic Code Book, Cipher Block Chaining, Cipfertext Feedback and Output Feedback,are described in the thesis.

采用DSP TMS320C5409汇编语言编制了以上各种算法，在DSP上实现了一个口令加密系统，数据加密速度达到3Mb/s以上，并实现密钥的安全管理，能满足个人PC机脱离主CPU加密大量数据的需要。

Encryption Algorithm simple description : DES is a block cipher algorithm, his 64 for a pair of data encryption Encryption algorithm principle :The password system may divide into 2 big kinds from the principle, namely single key password system and double key password system.

加密算法的简单描述：DES是一种分组加密算法，他以64位为分组对数据加密。加密算法的原理：密码体制从原理上可分为2大类，即单钥密码体制和双钥密码体制。

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。

Aimed at the safety requirement of WAP, the disadvantange of WAP＇s application model is analyzed, a new end-to-end safe model, named Double Encrypt＇s model, is developed. Its DES and IDEA algorithm are realized by the compiling language based on delphi 6.0, the most excellent IDEA algorithm that is suitable to encipher the algorithm in WAP application system is selected to transmit data safely.

为解决无线应用协议在应用中存在的安全隐患，探讨了WAP应用模型漏洞产生的原因，分析了目前WAP应用的3种实现模型及存在的不足，提出了一种新的端到端安全模型——双加密模型，并使用面向对象的编程语言DELPHI6.0实现了数据加密标准和国际数据加密算法两种对称加密算法，选择了适用于WAP应用的最优的IDEA算法。

It is in common use that data encryption ensures networks security. The paper furthers its research on the Ethernet hardware encryption, and focuses on the study of the application of the IDEA algorithm in data link layer. Also the protocol of the secret keys'exchange based on the Diffie-Hellman algorithm is presented.

数据加密是保证网络安全的常用手段，本文接着研究了以太网硬件加密技术，重点研究了IDEA算法在链路加密中的应用，同时基于Diffie-Hellman算法设计了一种密钥交换协议。

The encryption algorithms ensure the security of message transfer, which among the clients and the authentication servers.

其中，最常用的就是对称加密算法和公钥加密算法，加密算法可以保证用户和认证服务器间的数据传输保密和安全。

The IDEA algorithm is one kind of block data encryption algorithm, It has designed a series of encryptions turn of order, each turn of encryption all uses a sub- key which produces from the integrity encryption key.

IDEA算法是一种数据块加密算法，它设计了一系列加密轮次，每轮加密都使用从完整的加密密钥中生成的一个子密钥。

BACE algorithm has the desired property that does not reduce the encoding efficiency of the CABAC entropy encoder compared to the CIME algorithm for CAVLC entropy encoder. Both CIME and BACE algorithms can adapt to the content security level by choose the amount and different key parts of the video stream to be encrypted, the theoretical and experimental results show that both these algorithms can effectively encrypt the video content. Due to the ability of encrypting the video content without violating the syntax, the BIME and BACE algorithms can be employed used for many advanced H.264/AVC coding options without first decrypting the video stream, like Data Partition and UnEqualized Protection for the enhancement of transmission robustness, and the scalable coding in order to match the different channel capacity.

上述两种结合了H.264/AVC熵编码器特征的内容选择性加密算法，由于其加密后的视频码流的句法结构完全符合H.264/AVC视频编码标准，与传统的基于块数据的块加密算法相比较，本文提出的两种内容加密算法可以使得加密后码流在无需解密的情况下，实现H.264/AVC视频编码标准为移动视频应用而设计的诸多特性，如：增强传输鲁棒性的数据分割技术和非均衡保护技术，以及直接做匹配信道带宽的分级编码操作等，具有更高的灵活性和计算效率，从而可以灵活运用于各种应用场合。

Considering both performance of enciphering and degree of complexity of realization , steam cipher algorithm is used

对数据通信安全性起决定作用的加密模块所采用的加密算法进行了深入的分析，综合加密性能和实现的复杂度的考虑，采用了流密码的加密算法。

与数据加密算法相关的网络解释 [注：此内容来源于网络，仅供参考]

DEA：数据加密算法

DEA:数据加密算法(Data Encryption Algorithm)数据加密算法(DEA)是被定义作为美国政府数据加密标准的一部分的对称块密码. DEA使用一个64位的密钥,其中的56位是独立选择的,8位是校验位,和映射一个64位块到另一个64位块.

DES：数据加密标准

早在1977年,美国政府为了对于密码术进行管制,就制定了所谓的 "数据加密标准"(DES). DES原本为IBM所开发,是一种单密钥算法,在IBM的 早期版本中,密钥长度在一百位由于DES的安全性能日见过时,商业界要求使用 更强的密码术的呼声越来越高.

message digest：消息摘要

"消息摘要"(Message Digest)是一种能产生特殊输出格式的算法,这种加密算法的特点是无论用户输入什么长度的原始数据,经过计算后输出的密文都是固定长度的,这种算法的原理是根据一定的运算规则对原数据进行某种形式的提取,这种提取就是"摘要",

encryption：加密

---- 加密(Encryption)是信息保护的一种必不可少的手段. 目前有两种基本的加密方法,即私钥加密和公钥加密. 用VB既可用自定义算法实现简便的私钥加密,也可通过调用Crypto API接口实现复杂的公钥加密. 对于加密数据,若在Internet/Intranet上传送,则

data encryption：数据加密

数据加密(Data Encryption)是防止数据库中数据存储和传输中失密的有效手段. 加密的基本思想是根据一定的算法将原始数据(明文plaintext)加密成为不可直接识别的格式(密文,ciphertext),数据以密文的方式存储和传播.

encryption key：加密钥匙

对称/非对称密钥加密算法 数据加密技术 所谓数据加密(Data Encryption)技术是指将一个信息(或称明文,plain text)经过加密钥匙(Encryption key)及加密函数转换,变成无意义的密文(cipher text),而接收方则将此密文经过解密函数、解密钥匙(Decryption key)还原成明文.

hash：散列算法

同时应用散列算法(Hash)也是实现数字签名的一种方法. 非对称密钥密码算法进行数字签名 算法的含义: 非对称密钥密码算法使用两个密钥:公开密钥和私有密钥,分别用于对数据的加密和解密,即如果用公开密钥对数据进行加密,

idea：abbr. internationional data encryption algorithm; 国际数据加密算法

idea：abbr. international data encryption algorithm; 国际数据加密算法（128位，苏黎世大学1992年开发）

safety belts：安全带

"冲突"会造成非常危险的后果,因此MD4被无情的抛弃了,取而代之的是在MD4基础上加强了算法的MD5,它在MD4的基础上增加了"安全带"(Safety Belts)的概念,虽然MD5比MD4稍微慢一些由于"摘要"算法加密的数据仅仅能作为一种身份验证的凭据使用,