一个关于串口的简单实现，可以了解基本串口听基本知识

存UTF8格式文件-deposit UTF8 format

生成大素数并检验以及生成RSA1024位公钥子程序，不使用库文件，源代码公开，清晰有注释-Generate large prime numbers and testing, and to generate RSA1024-bit public key subroutine, do not use library files, source code is open, clear and annotated

DES算法全称为Data Encryption Standard,即数据加密算法,DES算法把64位的明文输入块变为64位的密文输出块,它所使用的密钥也是64位。RSA的安全性依赖于大数分解。公钥和私钥都是两个大素数（ 大于 100个十进制位）的函数。本程序为适合初学者的rsa算法java源码及des源码，开发环境eclipse3.4-DES algorithm called the Data Encryption Standard, that is, data encryption algorithm, DES algorithm to express the 64-bit input block into a 64-bit output ciphertext block, it is also used 64-bit key. RSA" s security depends on the decomposition of large numbers. Public key and private key are two large prime numbers (more than 100 decimal places) of the function. This procedure is suitable for beginners of rsa algorithm java source and des-source, development environment eclipse3.4

用C语言求解经典逻辑推理题-Solving with C language that classical logic

RC2算法源代码-RC2 algorithm source code

VIP account is provide a way to those who do not want upload code to download

RC5 algorithm document

RSA算法的实现，大家可以参考看看,用C实现-RSA algorithm, we can reference to see, using C to achieve

数据库安全至关重要，尤其是Access数据库，由于其加密算法过于简单，使得Access单靠密码无法保证其安全，本代码通过改变数据库头文件实现对Acess数据库的加密。-Database security is crucial, especially the Access database, because of its too simple encryption algorithm, making Access a password alone can not guarantee their safety, the code by changing the header file database achieve Acess database encryption.

素数生成算法，用于生成公共密钥，CA分配公共密钥。-prime number generation algorithm used to generate the public key, CA public key distribution.