Openssl的常用头文件，本人经常用，很不错的。

对于密码学感兴趣的读者适合，当然要求一定的基础-for cryptography for interested readers, of course, requires a certain basis

access数据库加密有几法，但用“设置安全机智向导”加密最为牢靠，又如何访问这样的数据库呢-access database encryption with a few laws, but "to provide a safety witty guide" the most secure encryption, how to access such a database?

RSA的小程序，源码产生随机素数调用方法：N.GetPrime(bits)返回值：N被赋值为一个bits位（0x100000000进制长度）的素数-RSA small program source random-number call methods : N. GetPrime (bits) Returns : N has been assigned a bits- (0x100000000 band length) of prime numbers

数据加密技术之几种算法 sa-faq-1-data encryption technology several algorithms rsa- faq-1

MD5加密算法，有个 getMD5() 方法可以传入字符串并生成一个 MD5 码。-MD5 encryption algorithm, there" s getMD5 () method can pass a string and generate an MD5 code.

The class has a methode named make_CRC that gets a byte stream and start/end offsets then calculate and return a 16 bit CRC according to determined POLYNAMIAL.The POLYNAMIAL is a private field of the class.

Base64组件的应用-Base64 application components

TEA介绍及数据加密算法之程序代码-TEA presentation and data encryption algorithm of the program code

非常好的使用Delphi 进行数据压缩加密的资料，值得收藏！- Extremely good use Delphi carries on the data compression encryption the material, is worth collecting!

基于RSA的数字签名实现，用VC++模拟实现RSA数字签名过程。-RSA-based digital signature implementation, using VC++ simulation of the process of realization of RSA digital signature.