this visual basic source code,perhaps usefull 4 you

rsa加密算法，VC环境，基于对画框的演示rsa算法的程序。-rsa encryption algorithm, VC environment, based on a demonstration of frame rsa algorithm procedure.

椭圆曲线加密算法-elliptic curve cryptosystem

Simple hashing utility

密码生成器，很好用-password generator, a good use

产生随机加密字符串,可用于产品的标识及权限控制等功能的实现上-randomly generated string encryption can be used for product identification and access control functions in the realization

该源码描述了DES加密算法的硬件语言实现方式-The source described the hardware DES encryption algorithm realize the way language

VIGENERE是法国的密码专家，以他明命名的密码是一种典型的多表密码！他的加密脱密可以通过文明维吉利亚方阵解决！-VIGENERE French cryptologist, with his name out the password is a typical multi-table password! From his secret encryption can solve civilization faces phalanx!

简单的RSA加密范例-simple example of the RSA encryption

关于数字水印嵌入时处理水印的源代码，采用猫脸变换对水印图像进行预处理 -Be dealt with on the digital watermark embedding watermark source code, using a cat face on the watermark image pre-processing transformation

采用高级加密标准aes算法针对流媒体加密程序-Using the Advanced Encryption Standard algorithm aes encryption for streaming media