softKey-yutian-vb

计算卡片过程密钥，加密密码数据，计算安全报文鉴别（MAC）过程密钥 (Calculating card key, the encrypted password data, calculate the safety message authentication (MAC) key)

基本古典密码设计——周期为3的多表代替密码的设计和实现(Basic classical cipher design)

RC4解加密算法生成DLL动态库，密钥可以再程序里面写死或者外部导入！(The RC4 the Xie encryption algorithm to generate the DLL dynamic libraries, key can re-program inside hardcoded or external import!)

3des加密解密,des加密解密该算法通过编译，可以直接使用。(3DES encryption and decryption algorithms.)

VB6.0调用Windows系统的API计算MD5码。这个代码跟网上流行的代码相比，具有代码简洁，维护方便，运行效率高等优点。运行速度比用纯VB6实现的快得多。(VB6.0- Call Windows system API calculate MD5 code. This code is compared with the popular online code, with code simple, easy maintenance, high efficiency. Runs faster than pure VB6 realize faster.)

支持椭圆曲线运算的大数运算库和源程序，头文件和静态库可以使用。(Support for elliptic curve operations of large numbers arithmetic library and source code, header files and static libraries can be used.)

shiftcipher加密解密算法实例 使用shiftcipher算法加密字符串 可输入任意密钥(shiftcipher examples of encryption and decryption algorithms String encryption algorithm using the shiftcipher Can enter any key)

说明：  用C++实现的图像加密和解密算法代码,功能强大(Using C++ implementation of image encryption and decryption algorithm code, powerful)

sha256的签名算法，纯C实现，已验证正确，在控制台上直接运行即可，(sha256 signature algorithm, pure C implementation ，has been verified properly and can be run directly on the console.)

Elgamal数字签名的一个大体验证,用于对一个文件的签名后在进行认证.一个VC开发的小程序.(Elgamal digital signature verification of a general for the signature of a document during the certification after. A small VC development process.)