{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,12]],"date-time":"2026-05-12T18:10:32Z","timestamp":1778609432703,"version":"3.51.4"},"reference-count":37,"publisher":"MDPI AG","issue":"11","license":[{"start":{"date-parts":[[2023,5,25]],"date-time":"2023-05-25T00:00:00Z","timestamp":1684972800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Beijing University of Posts and Telecommunications-China Mobile Research Institute Joint Innovation Center"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>Satellite\u2013ground integrated networks (SGIN) are in line with 6th generation wireless network technology (6G) requirements. However, security and privacy issues are challenging with heterogeneous networks. Specifically, although 5G authentication and key agreement (AKA) protects terminal anonymity, privacy preserving authentication protocols are still important in satellite networks. Meanwhile, 6G will have a large number of nodes with low energy consumption. The balance between security and performance needs to be investigated. Furthermore, 6G networks will likely belong to different operators. How to optimize the repeated authentication during roaming between different networks is also a key issue. To address these challenges, on-demand anonymous access and novel roaming authentication protocols are presented in this paper. Ordinary nodes implement unlinkable authentication by adopting a bilinear pairing-based short group signature algorithm. When low-energy nodes achieve fast authentication by utilizing the proposed lightweight batch authentication protocol, which can protect malicious nodes from DoS attacks. An efficient cross-domain roaming authentication protocol, which allows terminals to quickly connect to different operator networks, is designed to reduce the authentication delay. The security of our scheme is verified through formal and informal security analysis. Finally, the performance analysis results show that our scheme is feasible.<\/jats:p>","DOI":"10.3390\/s23115075","type":"journal-article","created":{"date-parts":[[2023,5,26]],"date-time":"2023-05-26T02:00:19Z","timestamp":1685066419000},"page":"5075","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":13,"title":["On-Demand Anonymous Access and Roaming Authentication Protocols for 6G Satellite\u2013Ground Integrated Networks"],"prefix":"10.3390","volume":"23","author":[{"given":"Ya","family":"Tao","sequence":"first","affiliation":[{"name":"School of Cyberspace Security, Beijing University of Posts and Telecommunications, Beijing 100876, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Haitao","family":"Du","sequence":"additional","affiliation":[{"name":"China Mobile Research Institute, Beijing 100032, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jie","family":"Xu","sequence":"additional","affiliation":[{"name":"School of Cyberspace Security, Beijing University of Posts and Telecommunications, Beijing 100876, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Li","family":"Su","sequence":"additional","affiliation":[{"name":"China Mobile Research Institute, Beijing 100032, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Baojiang","family":"Cui","sequence":"additional","affiliation":[{"name":"School of Cyberspace Security, Beijing University of Posts and Telecommunications, Beijing 100876, China"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2023,5,25]]},"reference":[{"key":"ref_1","unstructured":"Erol-Kantarci, M., and Sukhmani, S. (2018). Ad Hoc Networks, Proceedings of the 9th International Conference, AdHocNets 2017, Niagara Falls, ON, Canada, 28\u201329 September 2017, Springer."},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"2384","DOI":"10.1109\/COMST.2021.3108618","article-title":"Security and privacy for 6G: A survey on prospective technologies and challenges","volume":"23","author":"Nguyen","year":"2021","journal-title":"IEEE Commun. Surv. Tutor."},{"key":"ref_3","doi-asserted-by":"crossref","unstructured":"Wang, Y., Su, Z., Guo, S., Dai, M., Luan, T.H., and Liu, Y. (2023). A Survey on Digital Twins: Architecture, Enabling Technologies, Security and Privacy, and Future Prospects. IEEE Internet Things J.","DOI":"10.36227\/techrxiv.21972416.v1"},{"key":"ref_4","doi-asserted-by":"crossref","first-page":"70","DOI":"10.1109\/MNET.2018.1800172","article-title":"Satellite mobile edge computing: Improving QoS of high-speed satellite-terrestrial networks using edge computing techniques","volume":"33","author":"Zhang","year":"2019","journal-title":"IEEE Netw."},{"key":"ref_5","doi-asserted-by":"crossref","first-page":"272","DOI":"10.1109\/MNET.011.2000195","article-title":"Artificial-intelligence-enabled intelligent 6G networks","volume":"34","author":"Yang","year":"2020","journal-title":"IEEE Netw."},{"key":"ref_6","doi-asserted-by":"crossref","first-page":"53","DOI":"10.1109\/COMST.2021.3131332","article-title":"A survey on space-air-ground-sea integrated network security in 6G","volume":"24","author":"Guo","year":"2021","journal-title":"IEEE Commun. Surv. Tutor."},{"key":"ref_7","doi-asserted-by":"crossref","first-page":"975","DOI":"10.1109\/COMST.2023.3245614","article-title":"Aerospace Integrated Networks Innovation for Empowering 6G: A Survey and Future Challenges","volume":"25","author":"Zhou","year":"2023","journal-title":"IEEE Commun. Surv. Tutor."},{"key":"ref_8","doi-asserted-by":"crossref","unstructured":"Pachler, N., del Portillo, I., Crawley, E.F., and Cameron, B.G. (2021, January 14\u201323). An updated comparison of four low earth orbit satellite constellation systems to provide global broadband. Proceedings of the 2021 IEEE International Conference on Communications Workshops (ICC Workshops), Montreal, QC, Canada.","DOI":"10.1109\/ICCWorkshops50388.2021.9473799"},{"key":"ref_9","doi-asserted-by":"crossref","first-page":"224","DOI":"10.1109\/MNET.011.1900369","article-title":"Satellite-terrestrial integrated edge computing networks: Architecture, challenges, and open issues","volume":"34","author":"Xie","year":"2020","journal-title":"IEEE Netw."},{"key":"ref_10","doi-asserted-by":"crossref","first-page":"42","DOI":"10.1145\/958965.958970","article-title":"An authentication scheme for mobile satellite communication systems","volume":"37","author":"Hwang","year":"2003","journal-title":"ACM SIGOPS Oper. Syst. Rev."},{"key":"ref_11","doi-asserted-by":"crossref","first-page":"5485","DOI":"10.1109\/JIOT.2019.2902907","article-title":"A secure and efficient access and handover authentication protocol for Internet of Things in space information networks","volume":"6","author":"Xue","year":"2019","journal-title":"IEEE Internet Things J."},{"key":"ref_12","doi-asserted-by":"crossref","unstructured":"Wasef, A., and Shen, X. (2010, January 23\u201327). Efficient group signature scheme supporting batch verification for securing vehicular networks. Proceedings of the 2010 IEEE International Conference on Communications, Cape Town, South Africa.","DOI":"10.1109\/ICC.2010.5502136"},{"key":"ref_13","doi-asserted-by":"crossref","first-page":"47","DOI":"10.1109\/TWC.2018.2875980","article-title":"Ultra-dense LEO: Integrating terrestrial-satellite networks into 5G and beyond for data offloading","volume":"18","author":"Di","year":"2018","journal-title":"IEEE Trans. Wirel. Commun."},{"key":"ref_14","doi-asserted-by":"crossref","first-page":"6009","DOI":"10.1109\/TVT.2019.2910570","article-title":"Temporal netgrid model-based dynamic routing in large-scale small satellite networks","volume":"68","author":"Li","year":"2019","journal-title":"IEEE Trans. Veh. Technol."},{"key":"ref_15","unstructured":"3GPP (2021). 3GPP Sophia Antipolis, 3GPP."},{"key":"ref_16","doi-asserted-by":"crossref","first-page":"1550147719860390","DOI":"10.1177\/1550147719860390","article-title":"Toward efficient authentication for space-air-ground integrated Internet of things","volume":"15","author":"Zhao","year":"2019","journal-title":"Int. J. Distrib. Sens. Netw."},{"key":"ref_17","doi-asserted-by":"crossref","first-page":"78","DOI":"10.1109\/MWC.001.2000325","article-title":"Edge-Intelligence-Empowered, Unified Authentication and Trust Evaluation for Heterogeneous Beyond 5G Systems","volume":"28","author":"Cui","year":"2021","journal-title":"IEEE Wirel. Commun."},{"key":"ref_18","doi-asserted-by":"crossref","first-page":"5167832","DOI":"10.1155\/2020\/5167832","article-title":"A Novel RLWE-Based Anonymous Mutual Authentication Protocol for Space Information Network","volume":"2020","author":"Guo","year":"2020","journal-title":"Secur. Commun. Netw."},{"key":"ref_19","doi-asserted-by":"crossref","first-page":"75","DOI":"10.1109\/MWC.001.2000132","article-title":"Toward secure and lightweight access authentication in sagins","volume":"27","author":"Yao","year":"2020","journal-title":"IEEE Wirel. Commun."},{"key":"ref_20","doi-asserted-by":"crossref","first-page":"103183","DOI":"10.1016\/j.jnca.2021.103183","article-title":"A provably secure ECC-based access and handover authentication protocol for space information networks","volume":"193","author":"Guo","year":"2021","journal-title":"J. Netw. Comput. Appl."},{"key":"ref_21","doi-asserted-by":"crossref","unstructured":"Sun, J., Zhang, C., and Fang, Y. (2007, January 29\u201331). An id-based framework achieving privacy and non-repudiation in vehicular ad hoc networks. Proceedings of the MILCOM 2007-IEEE Military Communications Conference, Orlando, FL, USA.","DOI":"10.1109\/MILCOM.2007.4454834"},{"key":"ref_22","doi-asserted-by":"crossref","unstructured":"Zhang, L., Li, C., Li, Y., Luo, Q., and Zhu, R. (2017, January 18\u201320). Group signature based privacy protection algorithm for mobile ad hoc network. Proceedings of the 2017 IEEE International Conference on Information and Automation (ICIA), Macao, China.","DOI":"10.1109\/ICInfA.2017.8079039"},{"key":"ref_23","doi-asserted-by":"crossref","unstructured":"Boneh, D., Boyen, X., and Shacham, H. (2004, January 15\u201319). Short group signatures. Proceedings of the 24th Annual International Cryptology Conference, Santa Barbara, CA, USA.","DOI":"10.1007\/978-3-540-28628-8_3"},{"key":"ref_24","doi-asserted-by":"crossref","first-page":"5885","DOI":"10.1007\/s12652-020-02076-x","article-title":"An efficient group signcryption scheme supporting batch verification for securing transmitted data in the Internet of Things","volume":"14","author":"Alamer","year":"2020","journal-title":"J. Ambient. Intell. Humaniz. Comput."},{"key":"ref_25","doi-asserted-by":"crossref","first-page":"248","DOI":"10.1109\/TVT.2010.2089544","article-title":"ABAKA: An anonymous batch authenticated and key agreement scheme for value-added services in vehicular ad hoc networks","volume":"60","author":"Huang","year":"2010","journal-title":"IEEE Trans. Veh. Technol."},{"key":"ref_26","doi-asserted-by":"crossref","first-page":"66","DOI":"10.1016\/j.comnet.2016.02.007","article-title":"GLARM: Group-based lightweight authentication scheme for resource-constrained machine to machine communications","volume":"99","author":"Lai","year":"2016","journal-title":"Comput. Netw."},{"key":"ref_27","doi-asserted-by":"crossref","first-page":"170507","DOI":"10.1109\/ACCESS.2020.3024587","article-title":"LSWBVM: A lightweight security without using batch verification method scheme for a vehicle ad hoc network","volume":"8","author":"Anbar","year":"2020","journal-title":"IEEE Access"},{"key":"ref_28","doi-asserted-by":"crossref","first-page":"3673","DOI":"10.1109\/TWC.2020.2975781","article-title":"A lightweight and secure group key based handover authentication protocol for the software-defined space information network","volume":"19","author":"Xue","year":"2020","journal-title":"IEEE Trans. Wirel. Commun."},{"key":"ref_29","doi-asserted-by":"crossref","first-page":"7764","DOI":"10.1109\/TVT.2021.3091775","article-title":"Decentralized Anonymous Authentication With Fair Billing for Space-Ground Integrated Networks","volume":"70","author":"Liu","year":"2021","journal-title":"IEEE Trans. Veh. Technol."},{"key":"ref_30","doi-asserted-by":"crossref","first-page":"486","DOI":"10.1109\/TIFS.2018.2854740","article-title":"AnFRA: Anonymous and fast roaming authentication for space information network","volume":"14","author":"Yang","year":"2018","journal-title":"IEEE Trans. Inf. Forensics Secur."},{"key":"ref_31","doi-asserted-by":"crossref","first-page":"22","DOI":"10.1016\/j.comcom.2023.04.011","article-title":"SRAKN: Secure roaming authentication and key negotiation protocol for space information network","volume":"206","author":"Guo","year":"2023","journal-title":"Comput. Commun."},{"key":"ref_32","doi-asserted-by":"crossref","unstructured":"Yang, Y., Cao, J., Ma, R., Cheng, L., Chen, L., Niu, B., and Li, H. (2023). FHAP: Fast Handover Authentication Protocol for High-Speed Mobile Terminals in 5G Satellite-Terrestrial Integrated Networks. IEEE Internet Things J.","DOI":"10.1109\/JIOT.2023.3262933"},{"key":"ref_33","doi-asserted-by":"crossref","first-page":"36","DOI":"10.1007\/s102070100002","article-title":"The elliptic curve digital signature algorithm (ECDSA)","volume":"1","author":"Johnson","year":"2001","journal-title":"Int. J. Inf. Secur."},{"key":"ref_34","doi-asserted-by":"crossref","first-page":"8495","DOI":"10.1109\/TVT.2017.2678167","article-title":"Energy-efficient cross-layer design of wireless mesh networks for content sharing in online social networks","volume":"66","author":"Hu","year":"2017","journal-title":"IEEE Trans. Veh. Technol."},{"key":"ref_35","doi-asserted-by":"crossref","unstructured":"Guo, Y., Li, X., Yousefi\u2019zadeh, H., and Jafarkhani, H. (2012, January 1\u20134). UAV-aided cross-layer routing for MANETs. Proceedings of the 2012 IEEE Wireless Communications and Networking Conference (WCNC), Paris, France.","DOI":"10.1109\/WCNC.2012.6214304"},{"key":"ref_36","doi-asserted-by":"crossref","first-page":"644","DOI":"10.1109\/TIT.1976.1055638","article-title":"New directions in cryptography","volume":"22","author":"Diffie","year":"1976","journal-title":"IEEE Trans. Inf. Theory"},{"key":"ref_37","doi-asserted-by":"crossref","first-page":"6236","DOI":"10.1109\/ACCESS.2017.2679980","article-title":"Anonymous authentication on trust in pervasive social networking based on group signature","volume":"5","author":"Feng","year":"2017","journal-title":"IEEE Access"}],"container-title":["Sensors"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.mdpi.com\/1424-8220\/23\/11\/5075\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,10,10]],"date-time":"2025-10-10T19:42:09Z","timestamp":1760125329000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.mdpi.com\/1424-8220\/23\/11\/5075"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2023,5,25]]},"references-count":37,"journal-issue":{"issue":"11","published-online":{"date-parts":[[2023,6]]}},"alternative-id":["s23115075"],"URL":"https:\/\/doi.org\/10.3390\/s23115075","relation":{},"ISSN":["1424-8220"],"issn-type":[{"value":"1424-8220","type":"electronic"}],"subject":[],"published":{"date-parts":[[2023,5,25]]}}}