compact rapid text file encryption tool, using RC4 algorithm, support 256 charac...

crytage and decryptage with rsa 64 bits

分别使用VC和VB写的MD5加密算法-MD5 encrypting algorithm which writed in VC and VB

oracle9i官方培训教材,经典中的经典-Oracle9i official training materials, classic classic

DES加密代码，是研究密码加密的基础，希望大家能有所收获-DES encryption code, password encryption is to examine the basis for hope that we can gain

CRC32哈希算法的C#版源码．采用的是动态生成码表的方法．-CRC32-hash algorithm in C# version of the source code. The code is dynamically generated table method.

MD消息摘要程序，MD5以512位分组来处理输入的信息，且每一分组又被划分为16个32位子分组，经过了一系列的处理后，算法的输出由四个32位分组组成，将这四个32位分组级联后将生成一个128位散列值。-MD news summary procedures, MD5 to 512 groups to deal with the importation of information and each group was divided into 16 groups of 32 seats, after a series of processing, the output from the algorithm four groups composed of 32, these four sub-32 will generate a cascade 128 the hash value.

得到大素数的算法的Pascal源码 - Obtains the big prime number the algorithm Pascal source code

简单的密码例子，让密码储存在程序中 简单的密码例子，让密码储存在程序中-simple code example, passwords stored in the process simple code example, the password stored procedures

MD5加密算法java实现 * 下面这些S11-S44实际上是一个4*4的矩阵，在原始的C实现中是用#define 实现的， 这里把它们实现成为static final是表示了只读，切能在同一个进程空间内的多个 Instance间共享*/ -MD5 algorithm to achieve java* Below these S11- S44 is a 4* 4 Moment RUF, in a primitive realization of the C# define is achieved, Here they become static final realization of the said CD. cut in the same process space within the shared among many Instance* /

本书真实系统地介绍了密码学及该领域全面的参考文献。 全书共分四个部分，首先定义了密码学的多个术语，介绍了密码学的发展及背景，描述了密码学从简单到复杂的各种协议，详细讨论了密码技术，并在此基础上列举了如DES、IDEA、RSA、DSA等10多个算法以及多个应用实例，并提供了算法的源代代码清单。 全书内容广博权威，具有极大的实用价值。自出版以来，得到业内专家的高度赞誉，是致力于密码学研究的专业及非专业人员一本难得的好书。-This book introduces the real system and the field of cryptography comprehensive references. Book is divided into four parts, first of all define the term more than cryptography, introduced the development of cryptography and background, describes cryptography from the simple to the complex variety of the agreement, a detailed discussion of cryptographic techniques, and on this basis cited, such as DES, IDEA, RSA, DSA algorithm, as well as more than 10 examples of multiple applications and provides the algorithm source code on behalf of the list. Broad authority of the contents of the book, has great practical value. Self-publishing has been highly praised the industry experts, is dedicated to the study of cryptography professional and non-professional a rare book.