{"id":"https://openalex.org/W2025813045","doi":"https://doi.org/10.1145/2517840.2517848","title":"Privacy-preserving billing for e-ticketing systems in public transportation","display_name":"Privacy-preserving billing for e-ticketing systems in public transportation","publication_year":2013,"publication_date":"2013-11-04","ids":{"openalex":"https://openalex.org/W2025813045","doi":"https://doi.org/10.1145/2517840.2517848","mag":"2025813045"},"language":"en","primary_location":{"id":"doi:10.1145/2517840.2517848","is_oa":false,"landing_page_url":"https://doi.org/10.1145/2517840.2517848","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Proceedings of the 12th ACM workshop on Workshop on privacy in the electronic society","raw_type":"proceedings-article"},"type":"article","indexed_in":["crossref"],"open_access":{"is_oa":false,"oa_status":"closed","oa_url":null,"any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5102985450","display_name":"Florian Kerschbaum","orcid":"https://orcid.org/0000-0003-4288-2286"},"institutions":[{"id":"https://openalex.org/I4210119349","display_name":"Karlsruhe University of Education","ror":"https://ror.org/01t1kq612","country_code":"DE","type":"education","lineage":["https://openalex.org/I4210119349"]}],"countries":["DE"],"is_corresponding":true,"raw_author_name":"Florian Kerschbaum","raw_affiliation_strings":["SAP, Karlsruhe, Germany"],"affiliations":[{"raw_affiliation_string":"SAP, Karlsruhe, Germany","institution_ids":["https://openalex.org/I4210119349"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5016340326","display_name":"Hoon Wei Lim","orcid":"https://orcid.org/0000-0002-7830-3007"},"institutions":[{"id":"https://openalex.org/I172675005","display_name":"Nanyang Technological University","ror":"https://ror.org/02e7b5302","country_code":"SG","type":"education","lineage":["https://openalex.org/I172675005"]}],"countries":["SG"],"is_corresponding":false,"raw_author_name":"Hoon Wei Lim","raw_affiliation_strings":["Nanyang Technological University, Singapore, Singapore","Nanyang Technological University, Singapore, SINGAPORE#TAB#"],"affiliations":[{"raw_affiliation_string":"Nanyang Technological University, Singapore, Singapore","institution_ids":["https://openalex.org/I172675005"]},{"raw_affiliation_string":"Nanyang Technological University, Singapore, SINGAPORE#TAB#","institution_ids":["https://openalex.org/I172675005"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5044121791","display_name":"Ivan Gudymenko","orcid":null},"institutions":[{"id":"https://openalex.org/I78650965","display_name":"TU Dresden","ror":"https://ror.org/042aqky30","country_code":"DE","type":"education","lineage":["https://openalex.org/I78650965"]}],"countries":["DE"],"is_corresponding":false,"raw_author_name":"Ivan Gudymenko","raw_affiliation_strings":["Technische Universit\u00e4t Dresden, Dresden, Germany"],"affiliations":[{"raw_affiliation_string":"Technische Universit\u00e4t Dresden, Dresden, Germany","institution_ids":["https://openalex.org/I78650965"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":3,"corresponding_author_ids":["https://openalex.org/A5102985450"],"corresponding_institution_ids":["https://openalex.org/I4210119349"],"apc_list":null,"apc_paid":null,"fwci":3.3663,"has_fulltext":false,"cited_by_count":22,"citation_normalized_percentile":{"value":0.92492872,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":89,"max":98},"biblio":{"volume":null,"issue":null,"first_page":"143","last_page":"154"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10237","display_name":"Cryptography and Data Security","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"}},"topics":[{"id":"https://openalex.org/T10237","display_name":"Cryptography and Data Security","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"}},{"id":"https://openalex.org/T11598","display_name":"Internet Traffic Analysis and Secure E-voting","score":0.9993000030517578,"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/T10764","display_name":"Privacy-Preserving Technologies in Data","score":0.9991000294685364,"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/encryption","display_name":"Encryption","score":0.6562186479568481},{"id":"https://openalex.org/keywords/computer-security","display_name":"Computer security","score":0.6450884342193604},{"id":"https://openalex.org/keywords/public-transport","display_name":"Public transport","score":0.5964686870574951},{"id":"https://openalex.org/keywords/information-privacy","display_name":"Information privacy","score":0.5867480635643005},{"id":"https://openalex.org/keywords/relation","display_name":"Relation (database)","score":0.5840823650360107},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.578804612159729},{"id":"https://openalex.org/keywords/intelligent-transportation-system","display_name":"Intelligent transportation system","score":0.5112557411193848},{"id":"https://openalex.org/keywords/cash","display_name":"Cash","score":0.43278640508651733},{"id":"https://openalex.org/keywords/internet-privacy","display_name":"Internet privacy","score":0.42835062742233276},{"id":"https://openalex.org/keywords/business","display_name":"Business","score":0.3924214243888855},{"id":"https://openalex.org/keywords/database","display_name":"Database","score":0.17988410592079163},{"id":"https://openalex.org/keywords/transport-engineering","display_name":"Transport engineering","score":0.17756032943725586},{"id":"https://openalex.org/keywords/engineering","display_name":"Engineering","score":0.12270498275756836},{"id":"https://openalex.org/keywords/finance","display_name":"Finance","score":0.09491780400276184}],"concepts":[{"id":"https://openalex.org/C148730421","wikidata":"https://www.wikidata.org/wiki/Q141090","display_name":"Encryption","level":2,"score":0.6562186479568481},{"id":"https://openalex.org/C38652104","wikidata":"https://www.wikidata.org/wiki/Q3510521","display_name":"Computer security","level":1,"score":0.6450884342193604},{"id":"https://openalex.org/C539828613","wikidata":"https://www.wikidata.org/wiki/Q178512","display_name":"Public transport","level":2,"score":0.5964686870574951},{"id":"https://openalex.org/C123201435","wikidata":"https://www.wikidata.org/wiki/Q456632","display_name":"Information privacy","level":2,"score":0.5867480635643005},{"id":"https://openalex.org/C25343380","wikidata":"https://www.wikidata.org/wiki/Q277521","display_name":"Relation (database)","level":2,"score":0.5840823650360107},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.578804612159729},{"id":"https://openalex.org/C47796450","wikidata":"https://www.wikidata.org/wiki/Q508378","display_name":"Intelligent transportation system","level":2,"score":0.5112557411193848},{"id":"https://openalex.org/C2778083465","wikidata":"https://www.wikidata.org/wiki/Q693464","display_name":"Cash","level":2,"score":0.43278640508651733},{"id":"https://openalex.org/C108827166","wikidata":"https://www.wikidata.org/wiki/Q175975","display_name":"Internet privacy","level":1,"score":0.42835062742233276},{"id":"https://openalex.org/C144133560","wikidata":"https://www.wikidata.org/wiki/Q4830453","display_name":"Business","level":0,"score":0.3924214243888855},{"id":"https://openalex.org/C77088390","wikidata":"https://www.wikidata.org/wiki/Q8513","display_name":"Database","level":1,"score":0.17988410592079163},{"id":"https://openalex.org/C22212356","wikidata":"https://www.wikidata.org/wiki/Q775325","display_name":"Transport engineering","level":1,"score":0.17756032943725586},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.12270498275756836},{"id":"https://openalex.org/C10138342","wikidata":"https://www.wikidata.org/wiki/Q43015","display_name":"Finance","level":1,"score":0.09491780400276184}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1145/2517840.2517848","is_oa":false,"landing_page_url":"https://doi.org/10.1145/2517840.2517848","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Proceedings of the 12th ACM workshop on Workshop on privacy in the electronic society","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":42,"referenced_works":["https://openalex.org/W41714111","https://openalex.org/W53603207","https://openalex.org/W567251055","https://openalex.org/W1501375350","https://openalex.org/W1502328873","https://openalex.org/W1516531644","https://openalex.org/W1521996283","https://openalex.org/W1544327602","https://openalex.org/W1548445892","https://openalex.org/W1559779397","https://openalex.org/W1589625251","https://openalex.org/W1600010237","https://openalex.org/W1607188293","https://openalex.org/W1672316377","https://openalex.org/W1825165655","https://openalex.org/W1888254701","https://openalex.org/W1929168187","https://openalex.org/W1983236952","https://openalex.org/W2013623332","https://openalex.org/W2019640370","https://openalex.org/W2031533839","https://openalex.org/W2047370889","https://openalex.org/W2097595927","https://openalex.org/W2108111638","https://openalex.org/W2122465391","https://openalex.org/W2123841788","https://openalex.org/W2126433362","https://openalex.org/W2128906841","https://openalex.org/W2132172731","https://openalex.org/W2136340790","https://openalex.org/W2141420453","https://openalex.org/W2151816324","https://openalex.org/W2159845428","https://openalex.org/W2165210192","https://openalex.org/W2233233025","https://openalex.org/W2559905450","https://openalex.org/W2768894539","https://openalex.org/W2911978475","https://openalex.org/W2914982603","https://openalex.org/W4248358572","https://openalex.org/W4285719527","https://openalex.org/W6844825332"],"related_works":["https://openalex.org/W2100090372","https://openalex.org/W4361205702","https://openalex.org/W2385965183","https://openalex.org/W4289281780","https://openalex.org/W2013342653","https://openalex.org/W2901818815","https://openalex.org/W4237598585","https://openalex.org/W2359552542","https://openalex.org/W2374897487","https://openalex.org/W4205163163"],"abstract_inverted_index":{"Many":[0],"electronic":[1,64],"ticketing":[2],"systems":[3],"for":[4],"public":[5],"transportation":[6,76],"have":[7],"been":[8],"deployed":[9],"around":[10],"the":[11,14,47,67,75,96],"world.":[12],"Using":[13],"example":[15],"of":[16,46,53,58,63,69,98],"Singapore's":[17],"EZ-Link":[18],"system":[19],"we":[20,41,90],"show":[21],"that":[22],"it":[23],"is":[24],"easy":[25],"to":[26,94],"invade":[27],"a":[28,37,82],"traveller's":[29],"privacy":[30,54],"and":[31,78,86],"obtain":[32],"his":[33],"travel":[34,48],"records":[35,49],"in":[36],"real-world":[38],"system.":[39],"Then":[40],"propose":[42],"encrypted":[43],"bill":[44,60],"processing":[45,61],"preventing":[50],"any":[51],"kind":[52],"breach.":[55],"Clear":[56],"advantages":[57],"using":[59],"instead":[62],"cash":[65],"are":[66],"possibility":[68],"privacy-preserving":[70],"data":[71],"mining":[72],"analyses":[73],"by":[74],"company":[77],"monthly":[79],"billing":[80],"entailing":[81],"tighter":[83],"customer":[84],"relation":[85],"advanced":[87],"tariffs.":[88],"Moreover,":[89],"provide":[91],"an":[92],"implementation":[93],"demonstrate":[95],"feasibility":[97],"our":[99],"solution.":[100]},"counts_by_year":[{"year":2025,"cited_by_count":1},{"year":2024,"cited_by_count":2},{"year":2022,"cited_by_count":1},{"year":2021,"cited_by_count":1},{"year":2020,"cited_by_count":3},{"year":2019,"cited_by_count":3},{"year":2018,"cited_by_count":2},{"year":2017,"cited_by_count":2},{"year":2015,"cited_by_count":4},{"year":2014,"cited_by_count":3}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}
