sdgzhidian

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. )

基于crypto++实现RSA密钥对生成，密钥长度1024，vs2010实现(generate RSA key pair based on Crypto++，and save the key pairs which is 1024 bit in txt file )

RSA算法的解密和加密，用扩展的欧几里得算法求乘法逆元(rsa)

ROCKEY4ND加密锁硬复制程序(Rockey4 Rockey4 Smart Rockey4 ND) (Rockey4 Rockey4 Smart Rockey4ND clone) )

说明：  六种加密算法源码，包括CRC32校验，DES加密，MD5，rsa数字签名，RSA演示，简单加密(Six encryption algorithm source code, including the CRC32 checksum, DES encryption, MD5, rsa digital signature, RSA presentation, simple encryption)

基本古典密码设计——周期为3的多表代替密码的设计和实现(Basic classical cipher design)

RSA算法，主要讲述算法的原理和过程，设计到加密解密，和溢出处理，初级学习RSA用(RSA algorithm, the algorithm mainly about the principle and process design to the encryption and decryption, and overflow processing, the primary study used RSA)

说明：  使用openssl实现了文件保险箱，在VC6环境下编译通过。(The use of a document openssl safe, in the circumstances VC6 compiled through.)

100 多个加密和解密可以用到的库, 本人悉心收藏的精品(100 can be used to encrypt and decrypt the library, my collection of boutique carefully)

帮助开发出来的程序加密和解密！采用MD5算法，即时数据库中被人盗窃，也不能得到用户登录密码(Developed procedures to help encrypt and decrypt! Using MD5 algorithm, real-time database which has been stolen, nor can the user login password)