IDEA算法及其编程实现

Principle and Implementation of the IDEA Algorithm

通常采用加密技术来完成计算机信息资源的有效保护。IDEA算法是一种数据块加密算法,具有一流的可靠性和抗攻击能力。首先对IDEA算法进行了深入的分析和研究,并在此基础上阐述了该算法的实现原理和过程,尤其对此算法的加密过程进行了详细地描述,然后给出了实现算法的用VC语言编写的关键性源代码。

In order to realize the effective way to protect the information resource of computer. We usually adopt the technology of encryption to compute. IDEA is a block algorithm. It has top - ranking reliability and anti - attack capability. In this paper,Firstly,IDEA algorithm is analyzed and studied thoroughly,on the basis of this, expounding the principle and process of encryption algorithm and decryption algorithm,the encryption process of IDEA encryption algorithm is described in details especially. Then the main source code written in VC language is presented.