This paper presents a novel secure and privacy-preserving scheme for enhancing the security of transmitted data in an Internet of Things (IoT) environment. The proposed scheme combines a short group signature scheme with a signcryption method to represent an efficient short group signcryption (SGSC) technique with added security features. The proposed scheme supports aggregation and batch verification to eliminate the issue of increasing the computation delay from which the current IoT system suffers, particularly when the number of connected devices are increased. Detailed security analysis has shown that the proposed SGSC scheme is robust against many security and privacy threats in the IoT communication network, and can achieve more security features compared with currently available group signature schemes. The proposed scheme shows high efficiency in terms of computational cost in verifying a large number of messages within a short time frame.

本文提出了一种新颖的安全和隐私保护方案，用于增强物联网（IoT）环境中传输数据的安全性。所提出的方案将短组签名方案与签密方法相结合，以表示具有增加的安全性特征的有效的短组签密（SGSC）技术。所提出的方案支持聚合和批量验证，以消除增加当前物联网系统所遭受的计算延迟的问题，尤其是当连接的设备数量增加时。详细的安全性分析表明，提出的SGSC方案对于IoT通信网络中的许多安全性和隐私威胁均具有较强的鲁棒性，并且与当前可用的组签名方案相比，可以实现更多的安全性功能。