DSA

Shamir门限算法的C++实现，依赖于NTL开源代码库(Shamir threshold algorithm C++ implementation, relies on NTL open source code base)

设f(x)=1+x+x2+x5+x27，试分别写出实现下列移位寄存器的程序： 以f(x)为联接多项式的DSR； 以f(x)为联接多项式的LFSR。 可供选择的联接多项式： f1(x)=1+x+x4+x6+x30； f2(x)=1+ x3+ x31； f3(x)=1+ x6+ x31； f4(x)=1+ x7+ x31； f5(x)=1+ x13+ x31； -Let f (x) = 1 x x2 x5 x27, respectively try to write the following Shift Register : f (x) connected to the DSR polynomial; f (x) for connectivity polynomial LFSR. Connection options polynomial : f (x) = 1 x x4 x6 x30; F2 (x) = 1 x3 x31; f3 (x) = 1 x6 x31; f4 (x) = 1 x11 x31; f5 (x) = 1 x13 x31;

vc环境下RSA算法加解密功能 很強大，對RSA瞭解有所幫助(Vc environment RSA algorithm encryption function)

Error Correcting Code algorithms, for use whit E

windows登陆密码信息拦截，获取明文口令。程序对不同系统做了处理，在2000,2003,xp,vista上都可以截取， 在2000,2003,xp中，通过UNICODE_STRING.Length 的高8位取xor key,如果密码是编码过的，则通过ntdll.RtlRunDecodeUnicodeString解码， vista则通过AdvApi32.CredIsProtectedW判断密码是否编码过，解码用AdvApi32.CredUnprotectW。(The windows Password intercept, access to the plaintext password. Processing program on a different system in 2000, 2003, xp, vista can intercept, 2000,2003, xp UNICODE_STRING.Length high eight take xor key if the password is encoded by the ntdll.RtlRunDecodeUnicodeString decoding, vista, to judge by AdvApi32.CredIsProtectedW and password whether encoding, decoding AdvApi32.CredUnprotectW.)

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加密与解码――密码技术剖析与实战应用中的一个例子-encryption and decryption-- Password Technology Analysis and real application of an example

IBE基于身份的加密系统的加密程序，使用VC6.0开发-IBE identity-based encryption system of the decryption process, using VC6.0 Development

密码编码学――加密方法的C与C++实现，该程序最好在VC环境下编译-cryptographers-- encryption methods of C and C to achieve the best procedures in the VC environment compiler

采用Arnold变换对彩色图像进行加密操作，并能实现解密，恢复原图像(Adopt Arnold transform pairs of color image carry on encryption operation, and can realize decryption, restore the the original image)