公钥加密程序，采用非对称密钥，这里以类的形式调用

DES算法源代码，这是自己书写的源代码，里面采用了非常多的技巧来提高编解码的效率，研究算法和源码的朋友们，我书写的这个代码可以作为你们很好的参考。-DES algorithm source code, which is writing its own source code, which uses a lot of skills to improve the efficiency of the codec to study the algorithms and source of my friends, I am writing you this code can be used as a good reference.

用C写的两个安全算法DES和MD5 水平有限 大家多指教-C wrote two security MD5 and the DES algorithm is limited enlighten everyone

des算法实现源码-des algorithm realization source code

矛与盾之争（二）——CRC原则部分

SHA-1Hash函数源码，可以对任何文件做Hash，得到的Hash值为160位。具有抗强碰撞，弱碰撞等能力。虽然王小云已经找到了个别碰撞。但在新的好的hash函数出来之前仍将被广泛使用。-SHA-1Hash function source, any document can be done right hash, the hash value of 160. Anti-collision, the weak capabilities of the collision. Although Bruce Schneier, had found individual collisions. But the new good hash function will be out before widespread use.

简单的文件加密程序，希望站长保留，一些小课程设计可以用-Simple file encryption program, owners want to retain some small curriculum design can be

一个64位编码解码的动态连接库的例子-A 64-bit codec DLL example

Proguard是强大的Java字节码混淆器，含有源代码，可以根据自己需求修改编译。满足自身需求。 也可以作为爱好者自学的好材料。

Introduction to Cryptography in plain simple english. The document talks about the early day cryptography and gives some simple examples to the readers.

windows2000以上自带的加密api-dpapi的使用例子.-windows2000 above onboard encryption api- dpapi examples of the use.