铁路桥梁监测中基于短签名方案的数据传输协议

针对开放式互联网环境下铁路桥梁监测系统在数据交互过程中存在的信息泄露与篡改等网络安全问题，提出一种铁路桥梁监测中基于短签名方案的数据传输协议。首先，在Boneh短签名基础上构造了基于身份的短签名方案；然后，在随机预言机模型和逆计算性Diffie-Hellman问题（Inv-CDHP）假设下证明了该方案的安全性，并进一步把此方案运用在桥梁监测数据传输协议中；最后，给出了方案实现的关键代码并与另几种方案进行了实验比较。实验结果和分析表明，新方案的平均耗时与经典的Boneh方案接近，但与Fangguo Zhang方案和Leyou Zhang方案相比，平均耗时分别减少了6%和22%。因此，该方案在签名长度和效率方面较有优势，能有效解决监测数据缺乏完整性保护和身份可靠性认证的问题。

Data transmission protocol based on short signature scheme for railway bridge monitoring

Aiming at the problems of network security such as information disclosure and tampering in the process of information exchange for railway bridge monitoring systems under open Internet environment, a data transmission protocol based on short signature scheme was proposed for railway bridge monitoring. Firstly, an identity-based short signature scheme was designed on the basis of Boneh's short signature. Then the scheme was proved to be safe under the random oracle model and the Inverse Computational Diffie-Hellman Problem (Inv-CDHP), and it was further applied to the data transmission protocol for railway bridge monitoring. Finally, the key code of the scheme was given and compared with several schemes. The experimental results and analysis show that the average time consumption of the proposed scheme is close to the classical Boneh's scheme, but 6% and 22% lower than that of Fangguo Zhang's scheme and Leyou Zhang's scheme. Therefore, the proposed scheme has more advantages in terms of signature length and efficiency, and can effectively solve the problem of lack of integrity protection and identity reliability authentication of monitoring data.