椭圆曲线域的移动自组网密钥协商协议  

Key agreement protocol for MANET in elliptic curve field

作　　者：季鹏[1] 袁作林[1] 糜元根[1] 

机构地区：[1]南京工业大学信息科学与工程学院,江苏南京210009

出　　处：《计算机工程与设计》2009年第15期3520-3521,3567,共3页Computer Engineering and Design

摘　　要：为了有效解决移动自组网节点间安全通信的问题,提出了一种在椭圆曲线域的会话密钥动态协商方案。方案结合椭圆曲线数字签名技术、椭圆曲线加密体制,由参与会话的所有节点共同协商生成会话密钥,而会话密钥在会话结束后就作废。会话密钥的动态协商特性,以及椭圆曲线域的数字签名技术和加密算法的采用,使得方案在保证节点间会话过程安全性的同时,也减轻了节点的计算负担。方案具有抗中间人攻击、重放攻击和密钥独立性等安全特性,并具有一定的恶意节点发现的能力。To solve the internodal safety communication problem at ad hoc, a key exchange scheme for monlle au noc network in elliptic curve field is proposed. In the scheme, digital signature algorithm in elliptic curve field and elliptic curve cryptosystem （ECC） are combined to make a session key. The key is agreed on within all nodes who would participate in the conversation. When the conversation is done, the session key would blanked out. Because of the dynamic characteristics of the session key, the security of the conversion is guaranteed and the computational overheads are lessened. In the new scheme many secure properties are enjoyed such as against man-in-the-middle attack, against replay attack, key independence, etc. And it has some ability of drawing away the malicious nodes.

关 键 词：密钥协商 椭圆曲线 动态会话密钥 数字签名 移动自组网 

分 类 号：TP309[自动化与计算机技术—计算机系统结构]