0401-2

一个周期3的多表代替密码，第1个表由密钥字法产生（密钥字自拟），第2个表由洗牌法产生（注意，字母a~z与数字0~25一一对应），第三个表由公式法产生（数学公式自拟，注意它须是Z26上的一个一一变换）(a cycle of three multi-table instead of passwords, a table by key word method, (key word from the intended), Table No. 2 produced by shuffling method (note, a letter with a number of z ~ 0 ~ 25 he gathers), 3rd tables generated by the formula (from the proposed mathematical formula, it should pay attention to the Z26 is a transformation on January 1))

椭圆曲线密码算法及其应用论文，对椭圆曲线加解密算法实现具有很好参考价值(Elliptic curve cryptography algorithm and its application papers, the elliptic curve encryption and decryption algorithm to achieve a good reference value )

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.)

说明：  采用RCS做文件加密的源程序代码，VC环境。包含两个文件包，里面的Readme有详细介绍。(Using RCS to do file encryption source code, VC environment. Package consists of two documents, which detailed the Readme.)

关于ECC椭圆曲线加密算法在软件注册中的应用(The ECC Paper about software Registration)

FTP, file traversal, VC/C++ download the source code, VC++ FTP demo file 1

线性反馈移位寄存器LFSR生成随机序列的原理，序列密码的加密过程(Linear feedback shift register LFSR to generate random sequence of the principle of the encryption cipher)

看到RSA加密的C++类下载的人不少，我也下载了，并且稍微改动了一下，使它看上去更加易懂。在新年随手写了一套RSA文件加密，用win32dll封装使用了这个类，用C#写了文件加密和操作界面，可以实现密钥的保存和对任何文件的RSA加密操作。送给大家祝大家新年快乐。(see RSA encryption C downloaded to many people, I have downloaded and slightly altered a bit it looks more comprehensible. New Year threw in a written document RSA encryption, win32dll Compliant with the use of this category, C# to write document encryption and interface, can achieve key to the preservation of any documents and the RSA encryption operation. Give you wish you a happy New Year.)

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)

AES-rijndael 算法的详细资料, 包括 AES加密算法中的SBox及其C语言实现.pdf FIPS197(chs).pdf FIPS197.pdf nist.url Rijndael.pdf rijndael算法流程.swf Rijndael算法深入的研究.doc Rijndael算法优化技术研究.doc 公钥密码体制与有限域(2).pdf 一种基于伽罗瓦域的密码系统.pdf(AES-rijndael algorithm detailed information, including the AES encryption algorithm in C language and its SBox realize. PdfFIPS197 (chs). PdfFIPS197.pdfnist.urlRijndael.pdfrijndael flow algorithm. SwfRijndael-depth study of algorithms. DocRijndael algorithm optimization technology research. Doc public key cryptosystem over finite fields and (2). pdf Galois field based on the password system. pdf)