{"id":"https://openalex.org/W2771938060","doi":"https://doi.org/10.14778/3157794.3157796","title":"An authorization model for multi provider queries","display_name":"An authorization model for multi provider queries","publication_year":2017,"publication_date":"2017-11-01","ids":{"openalex":"https://openalex.org/W2771938060","doi":"https://doi.org/10.14778/3157794.3157796","mag":"2771938060"},"language":"en","primary_location":{"id":"doi:10.14778/3157794.3157796","is_oa":false,"landing_page_url":"https://doi.org/10.14778/3157794.3157796","pdf_url":null,"source":{"id":"https://openalex.org/S4210226185","display_name":"Proceedings of the VLDB Endowment","issn_l":"2150-8097","issn":["2150-8097"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319798","host_organization_name":"Association for Computing Machinery","host_organization_lineage":["https://openalex.org/P4310319798"],"host_organization_lineage_names":["Association for Computing Machinery"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Proceedings of the VLDB Endowment","raw_type":"journal-article"},"type":"article","indexed_in":["crossref"],"open_access":{"is_oa":true,"oa_status":"green","oa_url":"http://hdl.handle.net/2434/545537","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5024313767","display_name":"Sabrina De Capitani di Vimercati","orcid":"https://orcid.org/0000-0003-0793-3551"},"institutions":[{"id":"https://openalex.org/I189158943","display_name":"University of Milan","ror":"https://ror.org/00wjc7c48","country_code":"IT","type":"education","lineage":["https://openalex.org/I189158943"]}],"countries":["IT"],"is_corresponding":true,"raw_author_name":"Sabrina De Capitani di Vimercati","raw_affiliation_strings":["Universit\u00e0 degli Studi di Milano"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Universit\u00e0 degli Studi di Milano","institution_ids":["https://openalex.org/I189158943"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5069907040","display_name":"Sara Foresti","orcid":"https://orcid.org/0000-0002-1658-6734"},"institutions":[{"id":"https://openalex.org/I189158943","display_name":"University of Milan","ror":"https://ror.org/00wjc7c48","country_code":"IT","type":"education","lineage":["https://openalex.org/I189158943"]}],"countries":["IT"],"is_corresponding":false,"raw_author_name":"Sara Foresti","raw_affiliation_strings":["Universit\u00e0 degli Studi di Milano"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Universit\u00e0 degli Studi di Milano","institution_ids":["https://openalex.org/I189158943"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5010727123","display_name":"Sushil Jajodia","orcid":"https://orcid.org/0000-0003-3210-558X"},"institutions":[{"id":"https://openalex.org/I162714631","display_name":"George Mason University","ror":"https://ror.org/02jqj7156","country_code":"US","type":"education","lineage":["https://openalex.org/I162714631"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Sushil Jajodia","raw_affiliation_strings":["George Mason University"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"George Mason University","institution_ids":["https://openalex.org/I162714631"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5089266346","display_name":"Giovanni Livraga","orcid":"https://orcid.org/0000-0003-2661-8573"},"institutions":[{"id":"https://openalex.org/I189158943","display_name":"University of Milan","ror":"https://ror.org/00wjc7c48","country_code":"IT","type":"education","lineage":["https://openalex.org/I189158943"]}],"countries":["IT"],"is_corresponding":false,"raw_author_name":"Giovanni Livraga","raw_affiliation_strings":["Universit\u00e0 degli Studi di Milano"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Universit\u00e0 degli Studi di Milano","institution_ids":["https://openalex.org/I189158943"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5026292704","display_name":"Stefano Paraboschi","orcid":"https://orcid.org/0000-0003-0399-1738"},"institutions":[{"id":"https://openalex.org/I11039511","display_name":"University of Bergamo","ror":"https://ror.org/02mbd5571","country_code":"IT","type":"education","lineage":["https://openalex.org/I11039511"]}],"countries":["IT"],"is_corresponding":false,"raw_author_name":"Stefano Paraboschi","raw_affiliation_strings":["Universit\u00e0 di Bergamo"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Universit\u00e0 di Bergamo","institution_ids":["https://openalex.org/I11039511"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5091211008","display_name":"Pierangela Samarati","orcid":"https://orcid.org/0000-0001-7395-4620"},"institutions":[{"id":"https://openalex.org/I189158943","display_name":"University of Milan","ror":"https://ror.org/00wjc7c48","country_code":"IT","type":"education","lineage":["https://openalex.org/I189158943"]}],"countries":["IT"],"is_corresponding":false,"raw_author_name":"Pierangela Samarati","raw_affiliation_strings":["Universit\u00e0 degli Studi di Milano"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Universit\u00e0 degli Studi di Milano","institution_ids":["https://openalex.org/I189158943"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":6,"corresponding_author_ids":["https://openalex.org/A5024313767"],"corresponding_institution_ids":["https://openalex.org/I189158943"],"apc_list":null,"apc_paid":null,"fwci":1.0405,"has_fulltext":false,"cited_by_count":10,"citation_normalized_percentile":{"value":0.83847363,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":98},"biblio":{"volume":"11","issue":"3","first_page":"256","last_page":"268"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10237","display_name":"Cryptography and Data Security","score":0.9998999834060669,"subfield":{"id":"https://openalex.org/subfields/1702","display_name":"Artificial Intelligence"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T10237","display_name":"Cryptography and Data Security","score":0.9998999834060669,"subfield":{"id":"https://openalex.org/subfields/1702","display_name":"Artificial Intelligence"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T11614","display_name":"Cloud Data Security Solutions","score":0.9997000098228455,"subfield":{"id":"https://openalex.org/subfields/1710","display_name":"Information Systems"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10764","display_name":"Privacy-Preserving Technologies in Data","score":0.9994000196456909,"subfield":{"id":"https://openalex.org/subfields/1702","display_name":"Artificial Intelligence"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/visibility","display_name":"Visibility","score":0.9333487749099731},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.7690954208374023},{"id":"https://openalex.org/keywords/enforcement","display_name":"Enforcement","score":0.6921963691711426},{"id":"https://openalex.org/keywords/cloud-computing","display_name":"Cloud computing","score":0.6027742028236389},{"id":"https://openalex.org/keywords/authorization","display_name":"Authorization","score":0.582613468170166},{"id":"https://openalex.org/keywords/access-control","display_name":"Access control","score":0.578406810760498},{"id":"https://openalex.org/keywords/computer-security","display_name":"Computer security","score":0.46982765197753906},{"id":"https://openalex.org/keywords/encryption","display_name":"Encryption","score":0.46437373757362366},{"id":"https://openalex.org/keywords/database","display_name":"Database","score":0.3930305242538452}],"concepts":[{"id":"https://openalex.org/C123403432","wikidata":"https://www.wikidata.org/wiki/Q654068","display_name":"Visibility","level":2,"score":0.9333487749099731},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.7690954208374023},{"id":"https://openalex.org/C2779777834","wikidata":"https://www.wikidata.org/wiki/Q4202277","display_name":"Enforcement","level":2,"score":0.6921963691711426},{"id":"https://openalex.org/C79974875","wikidata":"https://www.wikidata.org/wiki/Q483639","display_name":"Cloud computing","level":2,"score":0.6027742028236389},{"id":"https://openalex.org/C108759981","wikidata":"https://www.wikidata.org/wiki/Q788590","display_name":"Authorization","level":2,"score":0.582613468170166},{"id":"https://openalex.org/C527821871","wikidata":"https://www.wikidata.org/wiki/Q228502","display_name":"Access control","level":2,"score":0.578406810760498},{"id":"https://openalex.org/C38652104","wikidata":"https://www.wikidata.org/wiki/Q3510521","display_name":"Computer security","level":1,"score":0.46982765197753906},{"id":"https://openalex.org/C148730421","wikidata":"https://www.wikidata.org/wiki/Q141090","display_name":"Encryption","level":2,"score":0.46437373757362366},{"id":"https://openalex.org/C77088390","wikidata":"https://www.wikidata.org/wiki/Q8513","display_name":"Database","level":1,"score":0.3930305242538452},{"id":"https://openalex.org/C120665830","wikidata":"https://www.wikidata.org/wiki/Q14620","display_name":"Optics","level":1,"score":0.0},{"id":"https://openalex.org/C17744445","wikidata":"https://www.wikidata.org/wiki/Q36442","display_name":"Political science","level":0,"score":0.0},{"id":"https://openalex.org/C199539241","wikidata":"https://www.wikidata.org/wiki/Q7748","display_name":"Law","level":1,"score":0.0},{"id":"https://openalex.org/C111919701","wikidata":"https://www.wikidata.org/wiki/Q9135","display_name":"Operating system","level":1,"score":0.0},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.0}],"mesh":[],"locations_count":3,"locations":[{"id":"doi:10.14778/3157794.3157796","is_oa":false,"landing_page_url":"https://doi.org/10.14778/3157794.3157796","pdf_url":null,"source":{"id":"https://openalex.org/S4210226185","display_name":"Proceedings of the VLDB Endowment","issn_l":"2150-8097","issn":["2150-8097"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319798","host_organization_name":"Association for Computing Machinery","host_organization_lineage":["https://openalex.org/P4310319798"],"host_organization_lineage_names":["Association for Computing Machinery"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Proceedings of the VLDB Endowment","raw_type":"journal-article"},{"id":"pmh:oai:air.unimi.it:2434/545537","is_oa":true,"landing_page_url":"http://hdl.handle.net/2434/545537","pdf_url":null,"source":{"id":"https://openalex.org/S4306400516","display_name":"Archivio Istituzionale della Ricerca (Universita Degli Studi Di Milano)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I189158943","host_organization_name":"University of Milan","host_organization_lineage":["https://openalex.org/I189158943"],"host_organization_lineage_names":[],"type":"repository"},"license":"other-oa","license_id":"https://openalex.org/licenses/other-oa","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"info:eu-repo/semantics/article"},{"id":"pmh:oai:aisberg.unibg.it:10446/116605","is_oa":false,"landing_page_url":"http://hdl.handle.net/10446/116605","pdf_url":null,"source":{"id":"https://openalex.org/S4377196347","display_name":"Aisberg (University of Bergamo)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I11039511","host_organization_name":"University of Bergamo","host_organization_lineage":["https://openalex.org/I11039511"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"info:eu-repo/semantics/article"}],"best_oa_location":{"id":"pmh:oai:air.unimi.it:2434/545537","is_oa":true,"landing_page_url":"http://hdl.handle.net/2434/545537","pdf_url":null,"source":{"id":"https://openalex.org/S4306400516","display_name":"Archivio Istituzionale della Ricerca (Universita Degli Studi Di Milano)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I189158943","host_organization_name":"University of Milan","host_organization_lineage":["https://openalex.org/I189158943"],"host_organization_lineage_names":[],"type":"repository"},"license":"other-oa","license_id":"https://openalex.org/licenses/other-oa","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"info:eu-repo/semantics/article"},"sustainable_development_goals":[{"display_name":"Partnerships for the goals","score":0.4300000071525574,"id":"https://metadata.un.org/sdg/17"}],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":26,"referenced_works":["https://openalex.org/W3168804","https://openalex.org/W1976392306","https://openalex.org/W2003734947","https://openalex.org/W2038412523","https://openalex.org/W2043226436","https://openalex.org/W2043508455","https://openalex.org/W2060457712","https://openalex.org/W2083237924","https://openalex.org/W2093407938","https://openalex.org/W2112101330","https://openalex.org/W2142265896","https://openalex.org/W2146635036","https://openalex.org/W2159915142","https://openalex.org/W2182564418","https://openalex.org/W2211160973","https://openalex.org/W2250570571","https://openalex.org/W2296458221","https://openalex.org/W2341583189","https://openalex.org/W2397820332","https://openalex.org/W2467340036","https://openalex.org/W2609523711","https://openalex.org/W2615336406","https://openalex.org/W2617941540","https://openalex.org/W2689288729","https://openalex.org/W2962933337","https://openalex.org/W2964164543"],"related_works":["https://openalex.org/W2123296434","https://openalex.org/W2555738791","https://openalex.org/W4298042445","https://openalex.org/W2104547074","https://openalex.org/W2132693790","https://openalex.org/W2017675414","https://openalex.org/W1593822213","https://openalex.org/W2095975812","https://openalex.org/W2367441718","https://openalex.org/W2017616439"],"abstract_inverted_index":{"We":[0],"present":[1],"a":[2],"novel":[3],"approach":[4,67],"for":[5,17],"the":[6,21,48,76,82],"specification":[7],"and":[8,41,59,70,78],"enforcement":[9],"of":[10,63,81],"authorizations":[11,27],"that":[12],"enables":[13,68],"controlled":[14],"data":[15,32,64,71],"sharing":[16],"collaborative":[18],"queries":[19],"in":[20,47],"cloud.":[22],"Data":[23],"authorities":[24,72],"can":[25],"establish":[26],"regulating":[28],"access":[29],"to":[30,56,73],"their":[31],"distinguishing":[33],"three":[34],"visibility":[35,62],"levels":[36],"(no":[37],"visibility,":[38,40],"encrypted":[39],"plaintext":[42],"visibility).":[43],"Authorizations":[44],"are":[45],"enforced":[46],"query":[49],"execution":[50],"by":[51,60],"possibly":[52],"restricting":[53],"operation":[54],"assignments":[55],"other":[57],"parties":[58],"adjusting":[61],"on-the-fly.":[65],"Our":[66],"users":[69],"fully":[74],"enjoy":[75],"benefits":[77],"economic":[79],"savings":[80],"competitive":[83],"open":[84],"cloud":[85],"market,":[86],"while":[87],"maintaining":[88],"control":[89],"over":[90],"data.":[91]},"counts_by_year":[{"year":2022,"cited_by_count":2},{"year":2021,"cited_by_count":2},{"year":2020,"cited_by_count":1},{"year":2019,"cited_by_count":4},{"year":2016,"cited_by_count":1}],"updated_date":"2026-05-21T06:26:12.895304","created_date":"2017-12-22T00:00:00"}