I do a small code, which use cryptography to the spread of the Internet are oper...

这个是RSA加密算法C源程序，希望对需要的朋友有所帮助-This is the RSA encryption algorithm C source code, and they hope to help a friend in need

SHA1消息摘要算法， SHA1消息摘要算法-SHA1 message digest algorithm, SHA1 message digest algorithm

另类密码登录窗体（拼图），只有正确拼出结果图才能进入。-alternative Password Login Window (puzzles), the only correct map decorated results can be admitted.

这用于制作 vignere 算法的源代码。它是在密码学中的经典算法之一。使用 visual basic，它将给一个友好的界面给用户和易于使用。享受 ！

对音频信号分帧加窗,对每帧进行三阶小波变换,取其逼近系数平均值(一般为零).在此嵌入二值图像 并有对潜入水印信号进行盲检,恢复其嵌入水印-Sub-frame of the audio signal increases the Hamming window for each frame impletment third-order wavelet transform, whichever is close to the average coefficient (usually zero). according to this embedding binary image and resume its embedded watermark from the watermark signal by the Blind detection

RSA公钥加密，用C实现，大家可以参考一下-RSA public key encryption, using C to achieve, we can refer to

MD4的源代码。该算法来源于应用密码学的随书附带光盘。已通过调试-MD4 source. The algorithm derived from the application of cryptography book with CD-ROM attached. Through debug

是大方的师傅是大方的师傅说的是大方的师傅的师傅说的-的师傅的师傅是大方的师傅都是

汇编加密文件一例。-compilation of case file encryption.

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