Lattice-Guided Secure Edge Collaboration: An Efficient IBE-to-ABE ReEncryption Framework over Recycled Smartphone Edge Clusters in Temporal Cloud Environments
Cloud-assisted and edge-enabled environments have become fundamental infrastructures for large-scale data storage, collaborative processing, and real-time analytics. While Ciphertext-Policy Attribute-Based Encryption (CP-ABE) provides fine-grained access control, its computational overhead renders it impractical for re...