轻量级的一对多认证和密钥协商方案

在物联网数据传输过程中,需要认证通信双方的身份和加密传输数据.目前,已有大量的认证和密钥协商方案已经被设计,但是,现有方案容易遭受多种攻击,例如智能卡被盗攻击,拒绝服务攻击等;针对现有方案存在问题,本文提出了一种轻量级的一对多认证和密钥协商方案,在用户端和传感器端分别使用椭圆曲线密码学和异或操作来实现相互认证,利用预共...

Lightweight One-to-many Authentication and Key Agreement Scheme

In the data transmission process of the Internet of Things, it is necessary to authenticate the identities of the communicating parties and encrypt the transmitted data. At present, a large number of authentication and key agreement schemes have been designed, but they are vulnerable to various attacks, such as smart card stolen attack and denial of service attack. In view of the problems of existing schemes, this paper proposes a lightweight one-to-many authentication and key agreement scheme, using elliptic curve cryptography and XOR operation on the user and the sensor sides respectively to achieve mutual authentication and the method of a pre-shared key to expand the sensor side to multiple ones. Finally, through the comparison of functions, computation cost, and communication cost, it is shown that the proposed scheme is better than other schemes and is more suitable for multi-sensor scenarios.