VB_CalculateMD5_UseWinAPI

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.)

des经典加密算法，实现数据交互过程中的保密(des classical encryption algorithm, data confidentiality during the interaction)

VB程序注册机范例，控件简单实用，采用流行且难以破解的算法加密机器码、序列号、注册码，能更好地保护您的软件(VB program RI example, the controls simple and practical, using the popular and difficult to machine code to crack the encryption algorithms, serial numbers, registration codes, can better protect your software)

加密程序,很好用。亲自验证，完全正确。希望下载。(we can add and unadd a picture correctly.welcom to download.)

ROCKEY4ND加密锁硬复制程序(Rockey4 Rockey4 Smart Rockey4 ND) (Rockey4 Rockey4 Smart Rockey4ND clone) )

说明：  使用openssl实现了文件保险箱，在VC6环境下编译通过。(The use of a document openssl safe, in the circumstances VC6 compiled through.)

生成RSA密钥，将密钥生成后`，存入文件中(RSA key generation, key generation `stored in the file)

古典密码中的仿射密码的加密和解密用C语言来实现。(Classical affine password encryption and decryption using C language to achieve.)

椭圆曲线加密算法，设置服务器一步的源代码(elliptic curve encryption algorithm, the step to set up the server source code)

流密码中RC4算法的加密解密的c程序实现(stream cipher)