Large Language Models (LLMs) have revolutionized natural language processing, yet their deployment is hindered by data, computation, and privacy constraints. Federated Learning (FL) offers a promising solution by enabling collaborative, privacy-preserving training across distributed devices, while the push for low-latency on-device intelligence further drives LLM integration into FL and edge settings—posing new challenges in heterogeneity and resource limits. This survey comprehensively reviews the integration of LLMs with federated learning, termed FLM, and its deployment at the edge, with particular emphasis on the robustness, privacy, and trustworthiness challenges that emerge across th... More >

In the context of smart cities, sensors are pivotal for the collection and analysis of health data within smart healthcare systems. Despite their importance, securing this data for cloud storage poses significant challenges, particularly in terms of data searchability and encryption. Our paper introduces a novel solution, namely certificateless encryption supporting equality test with cryptographic reverse firewalls (CLE-ET-CRF). This protocol allows cloud servers to perform equality tests on encrypted data without compromising its confidentiality, effectively mitigating risks like offline message recovery attacks (OMRA) and algorithm substitution attacks (ASAs). By eliminating the need for... More >

With the rapid growth of Internet of Things (IoT) applications and decentralized data-driven systems, secure and flexible data sharing remains a critical challenge. Identity-Based Proxy Re-Encryption (IB-PRE) is an effective cryptographic primitive for enabling fine-grained access delegation without exposing plaintext data. However, existing IB-PRE schemes remain vulnerable to algorithm substitution attacks (ASA), malicious key generation, inefficient ciphertext management, and the lack of practical revocation mechanisms. To address these limitations, we propose a blockchain-based revocable identity-based proxy re-encryption scheme with cryptographic reverse firewalls (BRIBPR-CRF) for secure... More >