{"id":"https://openalex.org/W2766100336","doi":"https://doi.org/10.1145/3133956.3134071","title":"BBA+","display_name":"BBA+","publication_year":2017,"publication_date":"2017-10-27","ids":{"openalex":"https://openalex.org/W2766100336","doi":"https://doi.org/10.1145/3133956.3134071","mag":"2766100336"},"language":"en","primary_location":{"id":"doi:10.1145/3133956.3134071","is_oa":false,"landing_page_url":"https://doi.org/10.1145/3133956.3134071","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Proceedings of the 2017 ACM SIGSAC Conference on Computer and Communications Security","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/A5025004781","display_name":"Gunnar Hartung","orcid":null},"institutions":[{"id":"https://openalex.org/I102335020","display_name":"Karlsruhe Institute of Technology","ror":"https://ror.org/04t3en479","country_code":"DE","type":"education","lineage":["https://openalex.org/I102335020","https://openalex.org/I1305996414"]}],"countries":["DE"],"is_corresponding":true,"raw_author_name":"Gunnar Hartung","raw_affiliation_strings":["Karlsruhe Institute of Technology, Karlsruhe, Germany"],"affiliations":[{"raw_affiliation_string":"Karlsruhe Institute of Technology, Karlsruhe, Germany","institution_ids":["https://openalex.org/I102335020"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5091246257","display_name":"Max Hoffmann","orcid":"https://orcid.org/0000-0001-9072-611X"},"institutions":[{"id":"https://openalex.org/I904495901","display_name":"Ruhr University Bochum","ror":"https://ror.org/04tsk2644","country_code":"DE","type":"education","lineage":["https://openalex.org/I904495901"]}],"countries":["DE"],"is_corresponding":false,"raw_author_name":"Max Hoffmann","raw_affiliation_strings":["Ruhr-Universit\u00e4t Bochum, Bochum, Germany"],"affiliations":[{"raw_affiliation_string":"Ruhr-Universit\u00e4t Bochum, Bochum, Germany","institution_ids":["https://openalex.org/I904495901"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5037209570","display_name":"Matthias Nagel","orcid":"https://orcid.org/0000-0002-8582-5102"},"institutions":[{"id":"https://openalex.org/I102335020","display_name":"Karlsruhe Institute of Technology","ror":"https://ror.org/04t3en479","country_code":"DE","type":"education","lineage":["https://openalex.org/I102335020","https://openalex.org/I1305996414"]}],"countries":["DE"],"is_corresponding":false,"raw_author_name":"Matthias Nagel","raw_affiliation_strings":["Karlsruhe Institute of Technology, Karlsruhe, Germany"],"affiliations":[{"raw_affiliation_string":"Karlsruhe Institute of Technology, Karlsruhe, Germany","institution_ids":["https://openalex.org/I102335020"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5047549684","display_name":"Andy Rupp","orcid":"https://orcid.org/0000-0003-0439-3633"},"institutions":[{"id":"https://openalex.org/I102335020","display_name":"Karlsruhe Institute of Technology","ror":"https://ror.org/04t3en479","country_code":"DE","type":"education","lineage":["https://openalex.org/I102335020","https://openalex.org/I1305996414"]}],"countries":["DE"],"is_corresponding":false,"raw_author_name":"Andy Rupp","raw_affiliation_strings":["Karlsruhe Institute of Technology, Karlsruhe, Germany"],"affiliations":[{"raw_affiliation_string":"Karlsruhe Institute of Technology, Karlsruhe, Germany","institution_ids":["https://openalex.org/I102335020"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":4,"corresponding_author_ids":["https://openalex.org/A5025004781"],"corresponding_institution_ids":["https://openalex.org/I102335020"],"apc_list":null,"apc_paid":null,"fwci":5.3199,"has_fulltext":false,"cited_by_count":21,"citation_normalized_percentile":{"value":0.96107637,"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":"1925","last_page":"1942"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10270","display_name":"Blockchain Technology Applications and Security","score":0.9979000091552734,"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"}},"topics":[{"id":"https://openalex.org/T10270","display_name":"Blockchain Technology Applications and Security","score":0.9979000091552734,"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/T10772","display_name":"Distributed systems and fault tolerance","score":0.9973000288009644,"subfield":{"id":"https://openalex.org/subfields/1705","display_name":"Computer Networks and Communications"},"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/T10237","display_name":"Cryptography and Data Security","score":0.9970999956130981,"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/aka","display_name":"AKA","score":0.8928632140159607},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.76545250415802},{"id":"https://openalex.org/keywords/incentive","display_name":"Incentive","score":0.6935120820999146},{"id":"https://openalex.org/keywords/block","display_name":"Block (permutation group theory)","score":0.688937246799469},{"id":"https://openalex.org/keywords/computer-security","display_name":"Computer security","score":0.637612521648407},{"id":"https://openalex.org/keywords/variety","display_name":"Variety (cybernetics)","score":0.6237863302230835},{"id":"https://openalex.org/keywords/cryptography","display_name":"Cryptography","score":0.5436652302742004},{"id":"https://openalex.org/keywords/point","display_name":"Point (geometry)","score":0.5344616174697876},{"id":"https://openalex.org/keywords/loyalty","display_name":"Loyalty","score":0.5011701583862305},{"id":"https://openalex.org/keywords/incentive-compatibility","display_name":"Incentive compatibility","score":0.43781575560569763},{"id":"https://openalex.org/keywords/computer-network","display_name":"Computer network","score":0.327391654253006},{"id":"https://openalex.org/keywords/business","display_name":"Business","score":0.10433104634284973},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.10316577553749084},{"id":"https://openalex.org/keywords/microeconomics","display_name":"Microeconomics","score":0.0793643593788147},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.07554557919502258},{"id":"https://openalex.org/keywords/economics","display_name":"Economics","score":0.06902849674224854}],"concepts":[{"id":"https://openalex.org/C121158502","wikidata":"https://www.wikidata.org/wiki/Q4652161","display_name":"AKA","level":2,"score":0.8928632140159607},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.76545250415802},{"id":"https://openalex.org/C29122968","wikidata":"https://www.wikidata.org/wiki/Q1414816","display_name":"Incentive","level":2,"score":0.6935120820999146},{"id":"https://openalex.org/C2777210771","wikidata":"https://www.wikidata.org/wiki/Q4927124","display_name":"Block (permutation group theory)","level":2,"score":0.688937246799469},{"id":"https://openalex.org/C38652104","wikidata":"https://www.wikidata.org/wiki/Q3510521","display_name":"Computer security","level":1,"score":0.637612521648407},{"id":"https://openalex.org/C136197465","wikidata":"https://www.wikidata.org/wiki/Q1729295","display_name":"Variety (cybernetics)","level":2,"score":0.6237863302230835},{"id":"https://openalex.org/C178489894","wikidata":"https://www.wikidata.org/wiki/Q8789","display_name":"Cryptography","level":2,"score":0.5436652302742004},{"id":"https://openalex.org/C28719098","wikidata":"https://www.wikidata.org/wiki/Q44946","display_name":"Point (geometry)","level":2,"score":0.5344616174697876},{"id":"https://openalex.org/C2776967331","wikidata":"https://www.wikidata.org/wiki/Q1132131","display_name":"Loyalty","level":2,"score":0.5011701583862305},{"id":"https://openalex.org/C91810955","wikidata":"https://www.wikidata.org/wiki/Q7731670","display_name":"Incentive compatibility","level":3,"score":0.43781575560569763},{"id":"https://openalex.org/C31258907","wikidata":"https://www.wikidata.org/wiki/Q1301371","display_name":"Computer network","level":1,"score":0.327391654253006},{"id":"https://openalex.org/C144133560","wikidata":"https://www.wikidata.org/wiki/Q4830453","display_name":"Business","level":0,"score":0.10433104634284973},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.10316577553749084},{"id":"https://openalex.org/C175444787","wikidata":"https://www.wikidata.org/wiki/Q39072","display_name":"Microeconomics","level":1,"score":0.0793643593788147},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.07554557919502258},{"id":"https://openalex.org/C162324750","wikidata":"https://www.wikidata.org/wiki/Q8134","display_name":"Economics","level":0,"score":0.06902849674224854},{"id":"https://openalex.org/C161191863","wikidata":"https://www.wikidata.org/wiki/Q199655","display_name":"Library science","level":1,"score":0.0},{"id":"https://openalex.org/C2524010","wikidata":"https://www.wikidata.org/wiki/Q8087","display_name":"Geometry","level":1,"score":0.0},{"id":"https://openalex.org/C162853370","wikidata":"https://www.wikidata.org/wiki/Q39809","display_name":"Marketing","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1145/3133956.3134071","is_oa":false,"landing_page_url":"https://doi.org/10.1145/3133956.3134071","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Proceedings of the 2017 ACM SIGSAC Conference on Computer and Communications Security","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[{"score":0.47999998927116394,"id":"https://metadata.un.org/sdg/16","display_name":"Peace, Justice and strong institutions"}],"awards":[{"id":"https://openalex.org/G7474119782","display_name":null,"funder_award_id":"RU 1664/3-1, PA 587/10-1","funder_id":"https://openalex.org/F4320320879","funder_display_name":"Deutsche Forschungsgemeinschaft"},{"id":"https://openalex.org/G8035343999","display_name":null,"funder_award_id":"16KIS0521","funder_id":"https://openalex.org/F4320321114","funder_display_name":"Bundesministerium f\u00fcr Bildung und Forschung"}],"funders":[{"id":"https://openalex.org/F4320320879","display_name":"Deutsche Forschungsgemeinschaft","ror":"https://ror.org/018mejw64"},{"id":"https://openalex.org/F4320321114","display_name":"Bundesministerium f\u00fcr Bildung und Forschung","ror":"https://ror.org/04pz7b180"}],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":31,"referenced_works":["https://openalex.org/W66196827","https://openalex.org/W271577796","https://openalex.org/W810272910","https://openalex.org/W1479826086","https://openalex.org/W1515669336","https://openalex.org/W1534388293","https://openalex.org/W1537942726","https://openalex.org/W1553083934","https://openalex.org/W1580550895","https://openalex.org/W1752249963","https://openalex.org/W1892798954","https://openalex.org/W1931152882","https://openalex.org/W1933009257","https://openalex.org/W2014480560","https://openalex.org/W2098538209","https://openalex.org/W2102758696","https://openalex.org/W2111336263","https://openalex.org/W2117797270","https://openalex.org/W2127697876","https://openalex.org/W2134615993","https://openalex.org/W2137664544","https://openalex.org/W2140246151","https://openalex.org/W2141395382","https://openalex.org/W2142871505","https://openalex.org/W2185363641","https://openalex.org/W2186696792","https://openalex.org/W2319037262","https://openalex.org/W2346086588","https://openalex.org/W2766100336","https://openalex.org/W2766711946","https://openalex.org/W2949458500"],"related_works":["https://openalex.org/W3014541132","https://openalex.org/W2994737807","https://openalex.org/W2948639032","https://openalex.org/W2948704552","https://openalex.org/W2948403110","https://openalex.org/W3156494719","https://openalex.org/W2909288185","https://openalex.org/W2948123712","https://openalex.org/W4241313390","https://openalex.org/W2948769344"],"abstract_inverted_index":{"Black-box":[0],"accumulation":[1],"(BBA)":[2],"has":[3],"recently":[4],"been":[5],"introduced":[6],"as":[7,17,31],"a":[8,11,32,38,63],"building-block":[9],"for":[10],"variety":[12],"of":[13],"user-centric":[14],"protocols":[15],"such":[16],"loyalty,":[18],"refund,":[19],"and":[20,50,81],"incentive":[21],"systems.":[22],"Loosely":[23],"speaking,":[24],"this":[25],"building":[26],"block":[27],"may":[28,56],"be":[29,57],"viewed":[30],"cryptographic":[33],"\"piggy":[34],"bank\"":[35],"that":[36],"allows":[37],"user":[39],"to":[40],"collect":[41],"points":[42],"(aka":[43],"incentives,":[44],"coins,":[45],"etc.)":[46],"in":[47],"an":[48],"anonymous":[49],"unlinkable":[51],"way.":[52],"A":[53],"piggy":[54,79],"bank":[55,80],"\"robbed\"":[58],"at":[59],"some":[60],"point":[61],"by":[62],"user,":[64],"letting":[65],"her":[66],"spend":[67],"the":[68,74,78],"collected":[69],"points,":[70],"thereby":[71],"only":[72],"revealing":[73],"total":[75],"amount":[76],"inside":[77],"its":[82],"unique":[83],"serial":[84],"number.":[85]},"counts_by_year":[{"year":2024,"cited_by_count":2},{"year":2023,"cited_by_count":1},{"year":2022,"cited_by_count":2},{"year":2021,"cited_by_count":5},{"year":2020,"cited_by_count":5},{"year":2019,"cited_by_count":5},{"year":2017,"cited_by_count":1}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2017-11-10T00:00:00"}