Public communication infrastructures are susceptible to disasters. Thus, the Emergency Communication Networks(ECNs) of small groups are necessary to maintain real-time communication during disasters. Given that ECNs a...Public communication infrastructures are susceptible to disasters. Thus, the Emergency Communication Networks(ECNs) of small groups are necessary to maintain real-time communication during disasters. Given that ECNs are self-built by users, the unavailability of infrastructures and the openness of wireless channels render them insecure. ECN security, however, is a rarely studied issue despite of its importance. Here, we propose a security scheme for the ECNs of small groups. Our scheme is based on the optimized Byzantine Generals’ Problem combined with the analysis of trusted security problems in ECNs. Applying the Byzantine Generals’ Problem to ECNs is a novel approach to realize two new functions, debugging and error correction, for ensuring system consistency and accuracy. Given the limitation of terminal devices, the lightweight fast ECDSA algorithm is introduced to guarantee the integrity and security of communication and the efficiency of the network. We implement a simulation to verify the feasibility of the algorithm after theoretical optimization.展开更多
Security relations are crucial in China-Japan relations. Since the"nationalization"of the Diaoyu Islands by Japan in 2012, mutual trust between China and Japan has been declining, and bilateral security rela...Security relations are crucial in China-Japan relations. Since the"nationalization"of the Diaoyu Islands by Japan in 2012, mutual trust between China and Japan has been declining, and bilateral security relations have reached a low point. China-Japan security relations are typified by ongoing dispute over the Diaoyu Islands, lack of mutual trust exacerbated by various actions by Japan, and the delay of China-Japan security dialogues. The evolution of China-Japan security relations derived from the Diaoyu Islands dispute is clearly beyond the scope of the dispute itself, with deep-rooted internal and external factors. In the near future,China-Japan security relations will face more challenges than opportunities. China should take measures, including enhancing mutual trust in politics and security between the two countries, to impose necessary pressure on Japan to change course, to win over neighboring countries so as to avoid pretext for Japan's intervention in regional issues,and to strengthen interpersonal communication and understanding between people of the two countries in order to stabilize security relations.展开更多
Large LanguageModels(LLMs)are increasingly utilized for semantic understanding and reasoning,yet their use in sensitive settings is limited by privacy concerns.This paper presents In-Mig,a mobile-agent architecture th...Large LanguageModels(LLMs)are increasingly utilized for semantic understanding and reasoning,yet their use in sensitive settings is limited by privacy concerns.This paper presents In-Mig,a mobile-agent architecture that integrates LLM reasoning within agents that can migrate across organizational venues.Unlike centralized approaches,In-Mig performs reasoning in situ,ensuring that raw data remains within institutional boundaries while allowing for cross-venue synthesis.The architecture features a policy-scoped memory model,utility-driven route planning,and cryptographic trust enforcement.Aprototype using JADE for mobility and quantizedMistral-7B demonstrates practical feasibility.Evaluation across various scenarios shows that In-Mig achieves 92%similarity to centralized baselines,confirming its utility and strong privacy guarantees.These results suggest that migrating,privacy-preserving LLM agents can effectively support decentralized reasoning in trust-sensitive domains.展开更多
文摘Public communication infrastructures are susceptible to disasters. Thus, the Emergency Communication Networks(ECNs) of small groups are necessary to maintain real-time communication during disasters. Given that ECNs are self-built by users, the unavailability of infrastructures and the openness of wireless channels render them insecure. ECN security, however, is a rarely studied issue despite of its importance. Here, we propose a security scheme for the ECNs of small groups. Our scheme is based on the optimized Byzantine Generals’ Problem combined with the analysis of trusted security problems in ECNs. Applying the Byzantine Generals’ Problem to ECNs is a novel approach to realize two new functions, debugging and error correction, for ensuring system consistency and accuracy. Given the limitation of terminal devices, the lightweight fast ECDSA algorithm is introduced to guarantee the integrity and security of communication and the efficiency of the network. We implement a simulation to verify the feasibility of the algorithm after theoretical optimization.
基金a stage of the “Study on Post-war China-Japan Security Relations”(project number 3262015T76),with supplementary funding for basic research from the University of International Relations
文摘Security relations are crucial in China-Japan relations. Since the"nationalization"of the Diaoyu Islands by Japan in 2012, mutual trust between China and Japan has been declining, and bilateral security relations have reached a low point. China-Japan security relations are typified by ongoing dispute over the Diaoyu Islands, lack of mutual trust exacerbated by various actions by Japan, and the delay of China-Japan security dialogues. The evolution of China-Japan security relations derived from the Diaoyu Islands dispute is clearly beyond the scope of the dispute itself, with deep-rooted internal and external factors. In the near future,China-Japan security relations will face more challenges than opportunities. China should take measures, including enhancing mutual trust in politics and security between the two countries, to impose necessary pressure on Japan to change course, to win over neighboring countries so as to avoid pretext for Japan's intervention in regional issues,and to strengthen interpersonal communication and understanding between people of the two countries in order to stabilize security relations.
文摘Large LanguageModels(LLMs)are increasingly utilized for semantic understanding and reasoning,yet their use in sensitive settings is limited by privacy concerns.This paper presents In-Mig,a mobile-agent architecture that integrates LLM reasoning within agents that can migrate across organizational venues.Unlike centralized approaches,In-Mig performs reasoning in situ,ensuring that raw data remains within institutional boundaries while allowing for cross-venue synthesis.The architecture features a policy-scoped memory model,utility-driven route planning,and cryptographic trust enforcement.Aprototype using JADE for mobility and quantizedMistral-7B demonstrates practical feasibility.Evaluation across various scenarios shows that In-Mig achieves 92%similarity to centralized baselines,confirming its utility and strong privacy guarantees.These results suggest that migrating,privacy-preserving LLM agents can effectively support decentralized reasoning in trust-sensitive domains.
