【摘要】 为解决由于建设不统一而产生的不同密码环境下的智能电表和控制中心之间的异构安全通信问题，提出了一种适用于智能电网的由无证书密码系统到基于身份密码系统的异构聚合签密方案。匿名性保护了智能电表用户的隐私；可追溯性保证了恶意用户的可追踪。在该方案中，仅需少量的椭圆曲线上的标量乘运算，且提供了聚合签密和批量验证功能，保证了方案具有较高的效率，并可设置不同的密码系统参数来增强安全性。性能分析表明，该方案具有较低的计算开销，同时可满足所需的安全特性和功能，适合用于智能电网中多对一的通信环境。更多还原

【Abstract】 In order to solve the problem of heterogeneous secure communication between smart meters and the control center in different cryptographic environments due to inconsistent construction, a heterogeneous aggregate signcryption scheme from certificateless cryptosystem to identity-based cryptosystem suitable for smart grid is proposed. Anonymity protects the privacy of smart meter users;traceability ensures that malicious users can be traced. In this scheme, only a few scalar multiplication operations on elliptic curves are required, providing aggregation signcryption and batch verification functions and ensuring high efficiency of the scheme, and different cryptographic system parameters can be set to enhance security. Performance analysis shows that the scheme has lower computation overhead and can meet the required security features and functions, making it suitable for use in multi to one communication environment in smart grid.更多还原