can的能源测试需要帮助的人请自己下载，还是挺有用的

使用单片来进行CRC校验，可以位校验、半字节和字节校验-Using the single-chip to carry out CRC check, you can place check, half-byte and byte checksum

一个用ATL开发的Base64编码控件，使用简单,用EnCode64(str)编码,EnCode64(str)解码,属性EnCode存放源码,属性DeCode存放Base64码，开发平台：VC.Net- The Base64 code which develops with ATL controls, the use is simple, (str) codes with EnCode64, EnCode64 (str) decodes, the attribute EnCode depositing source code, attribute DeCode deposits the Base64 code, develops the platform: VC.Net

加密算法SHA1的C语言实现示例，是一个C++类实现-The example of encryption arithmetic SHA1 using C program,which is a C++ class.

SecurityLib一个user-rights系统控件，有很多功能，如口令加密等-SecurityLib a user-rights system of controls, there are many features such as password encryption

各种反分析软件的手法,包括(反Dede,反单步跟踪,反SoftICE,Ollydbg,反静态分析,以及程序自身的CRC32效验等,对于初学者有很大的帮助.-Analysis of various anti-software approach, including the (Anti-Dede, anti-single-step tracking, anti-SoftICE, Ollydbg, anti-static analysis, as well as procedures for their own well-tested, such as CRC32, for beginners and has a great help.

ISGCSSecure增强Client/Server系统安全的控件。(源代码，需注册）价格：$799。工作在：CB1 CB3 D3 D4 D5。作者：Infinity Software Group--Control which uses ISGCSSecure to enhanced Client/Server system security .(with source codes,needing register) price:$799.works in:CB1 CB3 D3 D4 D5.author:Infinity Software Group

这个例子描述了MD4碰撞，很有研究价值，大家可以仔细研究下-MD4碰撞

简单实现CRC交验程序-simple inspection procedures

软件有限次加密，对软件的使用次数进行限制-finite encryption software, software usage restrictions

密码安全方面的PGP资料,很有用的!是学习密码学的好东西@-PGP password security information, very useful! Is a good thing to learn cryptography @