000106745 001__ 106745 000106745 005__ 20230111103828.0 000106745 0247_ $$2doi$$a10.1007/978-3-030-57805-3_12 000106745 0248_ $$2sideral$$a120287 000106745 037__ $$aART-2021-120287 000106745 041__ $$aeng 000106745 100__ $$0(orcid)0000-0002-4888-7734$$aSalazar, José Luis$$uUniversidad de Zaragoza 000106745 245__ $$aShort message multichannel broadcast encryption 000106745 260__ $$c2021 000106745 5060_ $$aAccess copy available to the general public$$fUnrestricted 000106745 5203_ $$aThe current use of short messages in wireless networks is highly growing. Messaging applications in mobile terminals with wireless coverage are very common in shopping, educational and transport centers, i.e. in centers of massive influx of people. This requires improving its efficiency, without losing security in such a hostile environment. In this paper, we propose an improvement in the use of the medium through a new multichannel broadcast encryption paradigm. Firstly, we rigorously demonstrate the security of our model that is characterized by two main issues: short messages and maintaining privacy in a shared frame. The improvements are obtained by reducing the transmitted overheads, saving bandwidth and airtime. To implement them, we improve the efficiency of communications, reducing the security headers to a single one, which will be shared by all receivers, while the payload is multiplexed via Chinese Remainder Theorem. In this way we reduce the packet length (less headers) and set the ratio of the encrypted text/plaintext equals to one, if we do not take into account padding and security headers. Although the model can be used by all types of networks, both wired and wireless, the improvement is more noticeable in the latter type. To make it remarkable, we quantify what this gain will consist of. 000106745 536__ $$9info:eu-repo/grantAgreement/ES/DGA/T31-20R$$9info:eu-repo/grantAgreement/ES/UZ/UZ2019-TEC-03 000106745 540__ $$9info:eu-repo/semantics/openAccess$$aAll rights reserved$$uhttp://www.europeana.eu/rights/rr-f/ 000106745 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/acceptedVersion 000106745 700__ $$0(orcid)0000-0002-6977-6363$$aSaldaña, José 000106745 700__ $$0(orcid)0000-0002-5237-0447$$aFernández-Navajas, Julián$$uUniversidad de Zaragoza 000106745 700__ $$0(orcid)0000-0003-4690-6089$$aRuiz-Mas, José$$uUniversidad de Zaragoza 000106745 700__ $$0(orcid)0000-0003-3270-5462$$aAzuara, Guillermo$$uUniversidad de Zaragoza 000106745 7102_ $$15008$$2560$$aUniversidad de Zaragoza$$bDpto. Ingeniería Electrón.Com.$$cÁrea Ingeniería Telemática 000106745 773__ $$g1267 AISC (2021), 122-131$$pAdv. intell. sys. comput.$$tAdvances in Intelligent Systems and Computing$$x2194-5357 000106745 8564_ $$s283010$$uhttps://zaguan.unizar.es/record/106745/files/texto_completo.pdf$$yPostprint 000106745 8564_ $$s1484591$$uhttps://zaguan.unizar.es/record/106745/files/texto_completo.jpg?subformat=icon$$xicon$$yPostprint 000106745 909CO $$ooai:zaguan.unizar.es:106745$$particulos$$pdriver 000106745 951__ $$a2023-01-11-10:08:01 000106745 980__ $$aARTICLE