基于身份认证的智能电网安全防护技术

为保障传感器安全接入信息内网，保障数据在传输、存储和使用过程中的机密性、完整性和可用性，本文在考虑设备性能和数字签名情况下提出了基于多因素的身份认证方案。随后利用椭圆曲线密码系统，提出了一种基于身份的新密钥建立协议。通过安全性能分析，与已有经典方案相比，本文所提方案在面对重播、模仿、中间人攻击(MITM)和去同步化攻击时更加安全，且计算时间开销更小。

Safety protection technology of smart grid based on identity

In order to ensure the security of sensor access to the information intranet and the confidentiality, integrity and availability of data in the process of transmission, storage and use, this paper proposes a multi parameter collaborative authentication scheme with joint consideration of the equipment performance and digital signature. Then a new identity based key establishment protocol is proposed by using elliptic curve cryptosystem. Through security performance analysis, compared with the existing classical schemes, the proposed scheme is more secure with less computing time consumption while facing the imitation attack, MITM(Man-In-The-Middle) attack and desynchronization attack.