经典的文件加密技术，简单高效

C++下的base64编码，能够支持任何数据进行base64编码。 -C++ Under the base64 encoding, can support any data base64 encoding.

des加密算法源码-Sourcecode of des encrypting algorithm

加密数字图像的主要源码 加密数字图像的主要源码-encrypt image

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.

des数据加密标准算法描述-des data encryption standard algorithm description

椭圆曲线算法改装- The elliptic curve algorithm reequips

由于BT老师的要求，非要将64位DES算法改编成16位的DES算法，小生在这里献丑了。-as teachers, add to the 64-bit DES algorithm adapted into 16 of the DES algorithm, Niche in a shortcoming here.

一些重要的加密算法的实现---主要是针对大学密码学课程中的算法实践，例如： 维吉尼亚密码，置换密码，移位密码-Some key encryption algorithm--- mainly aimed at the realization of the University of cryptography algorithms for practical courses, such as: Virginia password, replacement password, password, and so shift

共享软件加密算法库-sharing software encryption algorithm library

GOSTDSA算法的Pascal实现和例子，包括签名和确认-GOSTDSA the algorithm Pascal realization and the example, including sign and confirmed