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Abstract: DES algorithm is a data encryption algorithm. 摘要：DES算法是一种数据加密算法。
When created, the database master key is encrypted by using the Triple DES algorithm and a user-supplied password. 当创建数据库主密钥时,会使用Triple DES算法以及用户提供的密码对其进行加密。
When it is created, the master key is encrypted by using the Triple DES algorithm and a user-supplied password. 当创建主密钥时,会使用Triple DES算法以及用户提供的密码对其进行加密。
Realize ECM generation adopting DES algorithm and realize EMM generationadopting RSA algorithm. 分别采用DES 算法和RSA 算法,实现了条件接收系统授权控制消息和授权管理消息的生成。
DES algorithm has been applied to the software and hardware encryption extensively. DES(数据加密标准)算法被广泛应用于软件加密和硬件加密。
Whereafter, realizes the DES algorithm, changes the kernel, and adds some functional kernel modules. 然后，实现了DES算法，对内核进行了修改，添加了一些功能性内核模块。
DES algorithm combines 64 express importation into 64 blocks of dense text output block, it is also the key 64. DES算法把64位的明文输入块变为64位的密文输出块，它所使用的密钥也是64位.
With the development of computer networks, traditional data encryption standard DES algorithm must be replaced by thenew advanced encryption standard, Rijndael algorithm . 随着计算机网络等技术的发展,传统的数据加密标准DES算法将被新的高级加密标准Rijndael算法所代替。
Also, the DES algorithm encrypts the key information of secret image, even if illegal users steal it, it"s difficult for them to decrypt the key information. 此外，还采用了DES等加密算法来保护关键的数据，即使非法拦截者知道传送的图像中含有秘密图像，也很难破解出秘密图像的内容。
This article discusses the basic principle of presently data encryption algorithm:DES algorithm, IDEA algorithm, RSA algorithm and Rijndael algorithm of AES,introduces some of their application and the development of data encryption technology. 本文讨论了目前主要的一些数据加密算法 :DES,IDEA,RSA算法及高级加密标准 ( AES)的 Rijndael算法。介绍加密算法在网络中的有关应用及数据加密技术的发展状况
This article studied and has realized in the symmetrical password system DES algorithm, the male key password system RSA algorithm with emphasis and uses in the digital signature MD5. algorithm, has made the secure analysis. 本文重点研究并实现了对称密码体制中的DES算法、公钥密码体制的RSA算法和用于数字签名的MD5算法，作了安全性分析。
DES algorithm is a data encryption standard of ANSI, which is used widely in computer network and data communication. In general, the implementation of DES algorithm is suitable for hardware or assembly language. DES算法是一种数据加密标准,在数据通信和计算机网络中应用很广,但大多是用硬件和汇编语言实现,用高级的通用程序实现较复杂且速度不理想。
The American Data Encryption Standard DES was proposed in 1976 and used thru the end of the 20th century. During this time, the DES algorithm and its transmutations dominated the research and development of the block cipher algorithm. 从1976年美国数据加密标准算法DES公布以来，到20世纪末，DES算法或其某种变形基本主宰了对称算法的研究和发展。
In this system, fully utilize DES algorithm and RSA algorithm, according to tax-controlled machine's number, taxpayer number and branch office code produce the DES key, public key and private key. This system keeps these keys to tax-controlled card. 系统中充分利用DES 算法和RSA 算法,根据税控器号、纳税户识别码和分局代码生成对称密钥和公、私钥对,并将对称密钥和私钥保存到税控卡;
With the development of computer networks and etc, traditional data encryption standard DES algorithm inevitably must be replaced by Rijndael algorithm, the new advanced encryption standard. 随着计算机网络等技术的发展 ,传统的数据加密标准DES算法将被新的高级加密标准Rijndael算法所替代。
DES algorithm decryption process is the same, the only difference is that the first iteration used Subkey K15, K14 ,......, second last with K0, the algorithm itself without any change. DES算法的解密过程是一样的，区别仅仅在于第一次迭代时用子密钥K15，第二次K14、......，最后一次用K0，算法本身并没有任何变化。
This article discusses the basic principle of present data encryption algorithm:DES algorithm and Rijndael algorithm of AES, and makes a comparison of symmetric cryptography algorithms, then analyzes the symmetric cryptography algorithms of DES and AES. 讨论了目前主要的一些数据加密算法、DES算法及高级加密标准(AES)的Rijndael算法。
A DES Algorithm of Ciphers Keyspace Expand Based on Chaostic 基于混沌映射密钥空间拓展的DES算法
Implementation of Hopping Code Generator Using DES Algorithm 用DES算法构造跳频码序列发生器的实现研究
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