基于ECC的混合图元加密算法研究  

A Mixed Image Element Encryption Algorithm Based on ECC

作　　者：朱贵良[1] 张晓强[1] 

机构地区：[1]华北水利水电学院信息工程学院,河南郑州450011

出　　处：《通信技术》2007年第11期304-307,共4页Communications Technology

摘　　要：在定义块图元、混合图元等概念的基础上,依据椭圆曲线密码体制(ECC),提出了一种基于ECC的混合图元加密算法,详细给出了网络平台下的信息交互收、发双方加、解密步骤,并对算法的正确性进行了验证。验证结果与理论分析表明,该算法具有足够大的密钥空间,可有效实现网络平台下信息交互的安全性。最后对该算法实施过程中存在的问题进行了分析。By defining block image element, mixed image element and composite image element, etc., this paper proposes a mixed image element encryption algorithm based on ECC, which extends the single image encryption algorithm to several images encryption algorithm. This paper describes in detail the recipient＇ s （Bob） and the sender＇ s （Alice） encryptionand decryption steps and the key technology on the network platform. It also verifies the correctness of this algorithm. Experimental results and theoretical analysis show that the algorithm possesses large enough key space and can accomplish a high level of security concerning information interaction on the network platform. It is particularly applicable to highly confidential information interaction. Finally, the authors analyze some problems in algorithm implementation, and briefly describe the prospect concerning the anomalous image element, rotary block image element and composite image element encryption algorithms based on ECC.

关 键 词：块图元 混合图元 椭圆曲线密码体制 图像加密 加密算法 

分 类 号：TP309[自动化与计算机技术—计算机系统结构]