{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,7,14]],"date-time":"2025-07-14T02:54:51Z","timestamp":1752461691241},"reference-count":24,"publisher":"Association for Computing Machinery (ACM)","issue":"3","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Proc. VLDB Endow."],"published-print":{"date-parts":[[2017,11]]},"abstract":"<jats:p>We present a novel approach for the specification and enforcement of authorizations that enables controlled data sharing for collaborative queries in the cloud. Data authorities can establish authorizations regulating access to their data distinguishing three visibility levels (no visibility, encrypted visibility, and plaintext visibility). Authorizations are enforced in the query execution by possibly restricting operation assignments to other parties and by adjusting visibility of data on-the-fly. Our approach enables users and data authorities to fully enjoy the benefits and economic savings of the competitive open cloud market, while maintaining control over data.<\/jats:p>","DOI":"10.14778\/3157794.3157796","type":"journal-article","created":{"date-parts":[[2017,12,12]],"date-time":"2017-12-12T18:33:38Z","timestamp":1513103618000},"page":"256-268","source":"Crossref","is-referenced-by-count":7,"title":["An authorization model for multi provider queries"],"prefix":"10.14778","volume":"11","author":[{"given":"Sabrina","family":"De Capitani di Vimercati","sequence":"first","affiliation":[{"name":"Universit\u00e0 degli Studi di Milano"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Sara","family":"Foresti","sequence":"additional","affiliation":[{"name":"Universit\u00e0 degli Studi di Milano"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Sushil","family":"Jajodia","sequence":"additional","affiliation":[{"name":"George Mason University"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Giovanni","family":"Livraga","sequence":"additional","affiliation":[{"name":"Universit\u00e0 degli Studi di Milano"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Stefano","family":"Paraboschi","sequence":"additional","affiliation":[{"name":"Universit\u00e0 di Bergamo"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Pierangela","family":"Samarati","sequence":"additional","affiliation":[{"name":"Universit\u00e0 degli Studi di Milano"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"320","published-online":{"date-parts":[[2017,11]]},"reference":[{"key":"e_1_2_1_1_1","doi-asserted-by":"publisher","DOI":"10.1109\/ICDE.2006.144"},{"key":"e_1_2_1_2_1","doi-asserted-by":"publisher","DOI":"10.1145\/2723372.2742797"},{"key":"e_1_2_1_3_1","doi-asserted-by":"publisher","DOI":"10.14778\/3055330.3055334"},{"key":"e_1_2_1_4_1","doi-asserted-by":"publisher","DOI":"10.14778\/2735703.2735708"},{"key":"e_1_2_1_5_1","volume-title":"Proc. of NDSS","author":"Chow S. S.","year":"2009","unstructured":"S. S. Chow , J.-H. Lee , and L. Subramanian . Two-party computation model for privacy-preserving queries over distributed databases . In Proc. of NDSS , San Diego, CA , February 2009 . S. S. Chow, J.-H. Lee, and L. Subramanian. Two-party computation model for privacy-preserving queries over distributed databases. In Proc. of NDSS, San Diego, CA, February 2009."},{"key":"e_1_2_1_6_1","doi-asserted-by":"publisher","DOI":"10.14778\/1687553.1687576"},{"issue":"6","key":"e_1_2_1_7_1","first-page":"510","article-title":"Fragmentation in presence of data dependencies","volume":"11","author":"di Vimercati S. De Capitani","year":"2014","unstructured":"S. De Capitani di Vimercati , S. Foresti , S. Jajodia , G. Livraga , S. Paraboschi , and P. Samarati . Fragmentation in presence of data dependencies . IEEE TDSC , 11 ( 6 ): 510 -- 523 , 2014 . S. De Capitani di Vimercati, S. Foresti, S. Jajodia, G. Livraga, S. Paraboschi, and P. Samarati. Fragmentation in presence of data dependencies. IEEE TDSC, 11(6):510--523, 2014.","journal-title":"IEEE TDSC"},{"key":"e_1_2_1_8_1","doi-asserted-by":"publisher","DOI":"10.5555\/2011216.2011220"},{"key":"e_1_2_1_9_1","doi-asserted-by":"publisher","DOI":"10.3233\/JCS-160545"},{"key":"e_1_2_1_10_1","doi-asserted-by":"publisher","DOI":"10.1007\/978-3-662-49301-4_15"},{"key":"e_1_2_1_11_1","doi-asserted-by":"publisher","DOI":"10.1109\/ICDE.2014.6816670"},{"key":"e_1_2_1_12_1","first-page":"115","volume-title":"Proc. of Sicherheit","author":"P. Grofig","year":"2014","unstructured":"P. Grofig et al. Experiences and observations on the industrial implementation of a system to search over outsourced encrypted data . In Proc. of Sicherheit , pages 115 -- 125 , Vienna, Austria , March 2014 . P. Grofig et al. Experiences and observations on the industrial implementation of a system to search over outsourced encrypted data. In Proc. of Sicherheit, pages 115--125, Vienna, Austria, March 2014."},{"key":"e_1_2_1_13_1","doi-asserted-by":"publisher","DOI":"10.14778\/2732977.2733003"},{"key":"e_1_2_1_14_1","doi-asserted-by":"publisher","DOI":"10.1145\/564691.564717"},{"key":"e_1_2_1_15_1","doi-asserted-by":"publisher","DOI":"10.1145\/371578.371598"},{"key":"e_1_2_1_16_1","first-page":"255","volume-title":"Proc of PST","author":"Kwakye M. M.","year":"2016","unstructured":"M. M. Kwakye and K. Barker . Privacy-preservation in the integration and querying of multidimensional data models . In Proc of PST , pages 255 -- 263 , Auckland, New Zealand , December 2016 . M. M. Kwakye and K. Barker. Privacy-preservation in the integration and querying of multidimensional data models. In Proc of PST, pages 255--263, Auckland, New Zealand, December 2016."},{"key":"e_1_2_1_17_1","doi-asserted-by":"publisher","DOI":"10.1007\/BF00962627"},{"key":"e_1_2_1_18_1","doi-asserted-by":"publisher","DOI":"10.1109\/ICDE.2017.125"},{"key":"e_1_2_1_19_1","doi-asserted-by":"publisher","DOI":"10.1145\/2043556.2043566"},{"key":"e_1_2_1_20_1","doi-asserted-by":"publisher","DOI":"10.1145\/3078752"},{"key":"e_1_2_1_21_1","doi-asserted-by":"publisher","DOI":"10.1145\/1007568.1007631"},{"key":"e_1_2_1_22_1","doi-asserted-by":"publisher","DOI":"10.14778\/2535573.2488336"},{"key":"e_1_2_1_23_1","doi-asserted-by":"publisher","DOI":"10.1145\/2307729.2307796"},{"issue":"4","key":"e_1_2_1_24_1","first-page":"979","article-title":"Enforcement of autonomous authorizations in collaborative distributed query evaluation","volume":"27","author":"Zeng Q.","year":"2015","unstructured":"Q. Zeng , M. Zhao , P. Liu , P. Yadav , S. Calo , and J. Lobo . Enforcement of autonomous authorizations in collaborative distributed query evaluation . IEEE TKDE , 27 ( 4 ): 979 -- 992 , 2015 . Q. Zeng, M. Zhao, P. Liu, P. Yadav, S. Calo, and J. Lobo. Enforcement of autonomous authorizations in collaborative distributed query evaluation. IEEE TKDE, 27(4):979--992, 2015.","journal-title":"IEEE TKDE"}],"container-title":["Proceedings of the VLDB Endowment"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/dl.acm.org\/doi\/pdf\/10.14778\/3157794.3157796","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2022,12,28]],"date-time":"2022-12-28T09:36:06Z","timestamp":1672220166000},"score":1,"resource":{"primary":{"URL":"https:\/\/dl.acm.org\/doi\/10.14778\/3157794.3157796"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2017,11]]},"references-count":24,"journal-issue":{"issue":"3","published-print":{"date-parts":[[2017,11]]}},"alternative-id":["10.14778\/3157794.3157796"],"URL":"https:\/\/doi.org\/10.14778\/3157794.3157796","relation":{},"ISSN":["2150-8097"],"issn-type":[{"value":"2150-8097","type":"print"}],"subject":[],"published":{"date-parts":[[2017,11]]}}}