rsa

说明：  一个应用密码学的源代码，主要完成应用密码方面的功能。(a Cryptographic Application source code, application code to complete the function.)

量子密钥仿真 量子信息，BB84协议 量子密钥分配，安全通信，量子密码学，进十年内可能取代传统方法(the model of quantum key )

通过调用openssl库进行aes加密，本程序已编译好了openssl，无需在进行编译！生成时请引用lib文件(By calling the openssl library aes encryption, the program has compiled the openssl, without making compilation! Please cite lib files generated)

题目：某个公司采用公用电话传递数据，数据是四位的整数，在传递过程中是加密的，加密规则如下： 　　　 每位数字都加上5,然后用和除以10的余数代替该数字，再将第一位和第四位交换，第二位和第三位交换。 1.程序分析： 2.程序源代码：(Topic: a company USES the public telephone relay data, data is four integers, in the relay in the process is encrypted, encryption rules are as follows: Each Numbers add 5, then use and divided by the number of 10 instead of a remnant, then the first and fourth exchange, the second and third exchange. 1. The program analysis: 2. The source code:)

实现了ECC算法的加密解密，主要是对字符串的加解密。(Realize the ECC algorithm encrypt, decrypt, is mainly to the string encryption.)

逆向工程揭秘，包含大量加密解密详细说明。学习逆向工程必备(The secret of Reverse engineering The detailed description contains a large number of encryption and decryption. To learn reverse engineering necessary)

DES 算法描述DES 算法描述DES 算法描述(DES algorithm description)

一种加密算法,可以直接对密文进行操作，而不需要知道相应的明文。(homomorphic encryption)

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. )

说明：  ECC实现加密解密功能，系统参数的生成！(ECC to achieve encryption and decryption functions, system parameter generation!)