20110927090408

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)

实现维吉尼亚密码，用键盘接收明文和密钥，屏幕打印密文和解密后的明文。 可以实现：大小写敏感，明文小写则密文大写，明文大写则密文小写输出，注意输入的健壮性控制，明文字符超出字符集后保留原文(Virginia to achieve the password, use the keyboard to receive the plaintext and the key, the screen printing ciphertext and the decrypted plaintext. Can be achieved: case sensitive, then the ciphertext plaintext lowercase uppercase, lowercase plaintext ciphertext output is capital, pay attention to the robustness of the control input, plaintext characters out retain the original character set)

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. )

在实现AES基础上，用C编写CMAC算法并调试通过。输入数据进行CMAC验证。(In the realization of AES based on the CMAC algorithm written in C and debugging. CMAC input data validation)

CRC校验程序，使用了CRC-16和CRC-CCITT方法 (CRC inspection program, which use crc-16 and crc-ccitt method)

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

账号管理软件，高等级加密。功能简单，但安全等级高(Account management software, high-grade encryption)

说明：  1、掌握典型的分组密码算法（如DES、AES、IDEA、SERPENT等）加、解密原理； 2、能够编写程序实现算法的加、解密。(1. Master the encryption and decryption principles of typical block cipher algorithms (such as DES, AES, IDEA, SERPENT, etc.). 2. Encryption and decryption of algorithm can be realized by programming.)

01 authentication dan digital signature dengan metode schnorr

DES、RSA、背包、AES、IDEA等各种加密算法的源码(All Kinds Of Encoding Algorithms)