Fault-Tolerant and Key-Leakage Resilient Lightweight Multidimensional Privacy-Preserving Data Aggregation Scheme in Smart Grid

This research proposes FKLM-PDA, a lightweight system for collecting power consumption data in smart grids while protecting users' privacy. The system uses an efficient encryption method (combining random masking with secret-sharing based key separation, which splits encryption keys so no single leaked key fully exposes data) to replace expensive encryption algorithms, and it can tolerate transmission failures and handle users joining or leaving the system.