混合加密程序,RSA算法加密DES密钥,DES算法加密消息.很多通讯系统都是这样加密的...

一个实现文件加密的源码- A realization document encryption source code

数据库安全至关重要，尤其是Access数据库，由于其加密算法过于简单，使得Access单靠密码无法保证其安全，本代码通过改变数据库头文件实现对Acess数据库的加密。-Database security is crucial, especially the Access database, because of its too simple encryption algorithm, making Access a password alone can not guarantee their safety, the code by changing the header file database achieve Acess database encryption.

MD5加密算法-MD5 encryption algorithm

MD5算法说明 最新的算法分析-MD5 algorithm shows the newest algorithmic analysis

COBRA cipher algorithm example.

详细介绍了DES和RSA2算法描述,以及他们的实现的有关代码和他们的区别-detail and the DES algorithm RSA2 described, as well as their realization of the code and the difference between them

CRC校验中叠加和校验方法的生成，校验等功能函数源码。-CRC verification and validation methods of superposition generation, calibration source, such as performance function.

Find the highest (maximum) and lowest (minimum) grades in an array of 25 integer grades. Print the array and print the highest and lowest grades, labeled appropriately.-Find the highest (maximum) and lowest (minimum) grades in an array of 25 integer grades. Print the array and print the highest and lowest grades, labeled appropriately.

这是一个完整的数字签名过程，包括密钥的分发管理，摘要的提取，在eclipse上测试成功。

流密码算法,可用于文件加密和实时通信 ,设计者是著名的密码学家Rivest.该算法效率远高于一般分组密码,并且很适合用于随机数生成-Stream cipher algorithm, can be used for file encryption and real-time communication, the designer is well-known cryptographer Rivest. The algorithm efficiency is much higher than the general block cipher, and is suitable for random number generator