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The 6G environment will witness a substantial increase in subscriber numbers, driven by the mass deployment of the Internet of Everything (IoE) and improvements in network performance. Simultaneously, the performance capabilities required of TTPs to manage trustworthy operator-to-operator (O2O) interactions in 6G must align with the demands of the 6G ecosystem. This work focuses on enhancing CH intermediation capabilities to support O2O trustworthy interactions within the 6G context. Given the close connection between performance and trustworthiness, this paper explores these aspects by modeling interactions between communication parties using a Petri Net model. This model is applied to analyze the quantitative relationships among the non-functional requirements of future 6G communication scenarios, considering both traditional and blockchain-based approaches.<\/jats:p>","DOI":"10.1145\/3716176","type":"journal-article","created":{"date-parts":[[2025,2,5]],"date-time":"2025-02-05T11:42:56Z","timestamp":1738755776000},"page":"1-28","update-policy":"https:\/\/doi.org\/10.1145\/crossmark-policy","source":"Crossref","is-referenced-by-count":3,"title":["Performance-Security Analysis in O2O Interactions in Future 6G Communications"],"prefix":"10.1145","volume":"5","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-7878-8710","authenticated-orcid":false,"given":"Emanuele","family":"Bellini","sequence":"first","affiliation":[{"name":"Universit\u00e0 di Roma Tre, Roma, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9557-6496","authenticated-orcid":false,"given":"Ernesto","family":"Damiani","sequence":"additional","affiliation":[{"name":"Center for Secure Cyber Physical Systems, Khalifa University, Abu Dhabi, United Arab Emirates and Dipartimento di Informatica Giovanni Degli Antoni, Universit\u00e0 di Milano, Milano, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0009-0002-4456-8303","authenticated-orcid":false,"given":"Michele","family":"Di Giovanni","sequence":"additional","affiliation":[{"name":"Department of Mathematics and Physics, University of Campania Luigi Vanvitelli, Caserta, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1927-6173","authenticated-orcid":false,"given":"Stefano","family":"Marrone","sequence":"additional","affiliation":[{"name":"Department of Mathematics and Physics, University of Campania Luigi Vanvitelli, Caserta, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"320","published-online":{"date-parts":[[2026,5,7]]},"reference":[{"key":"e_1_3_2_2_1","unstructured":"5G Roles in Industry Digitalization in the UAE. 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