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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)

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：  编制程序，将输入的一行字符以加密的形式输出，然后将其解密，解密的字符串序列与输入的正文相比较，吻合时输出解密的正文，否则解密失败。 加密时，将每个字符的ascii码依次反复加上“4962873”中的数字，并在32（‘’）~122（‘z’）之间作模运算。解密与加密的顺序相反。例如输入正文“the result of 3 and 2 is not 8” 结果为： (Programming, the input line character output in an encrypted form, and then decrypted, the decrypted text sequence of characters compared with the input, output to decrypt the body of the agreement, otherwise the decryption failed. Encryption, ascii code of each character in turn repeatedly with &quot 4962873&quot in the figures, and 32 (' ' )~ 122 (' z' ) as a model between the operations. Decryption and encryption in reverse order. For example, enter the text &quot the result of 3 and 2 is not 8&quot results:)

我自己编写的rsa算法，实现了加密和解密功能

编写的DES 对称加解密技术，可随时进行明文密文之间的转换，有需要的朋友可以下载测试！本人目的打算对后台数据库的敏感信息字段用该方法加密，然后用软件权限控制读取，这样即使直接SQL后台取数，也得不到明文数据。(Write DES symmetrical encryption technology, may at any time for conversion between plaintext cipher, friends in need can be download test! I purpose going to the backstage database of sensitive information field with the method of encryption, and then use software to read access control, so even if the SQL backend access directly, also can not get clear data. )

整体思路 用createkey.java 文件来产生秘钥，用jiami.java 文件来实 现加密，用jiemi.java 文件来实现解密,用BigInteger.java 来实现 大数的表示及运算，用rsa.java 来实现前端图形界面显示。有关函 数见五个文件里的具体实现。 (The overall outlook createkey.java document used to generate secret keys, used to achieve jiami.java file encryption, used to achieve jiemi.java documents declassified by BigInteger.java to achieve expression of large numbers and calculations, using rsa.java to achieve front-end graphical interface display. Related functions, see the five concrete realization of the document.)

MD5VB2010实现MD5加密，计算机VB程序(MD5VB2010 achieve MD5 encryption, computer VB program)

aes256加密解密算法，256bit秘钥，配有例子 。(aes256 encrypt and decrypt)

文件的加密传输，用到了各种加密算法 MD5 RSA (File encryption MD5 RSA )

C++ implementaion for RSA together with the Wiener attack. It uses NTL library for big numbers