{"id":"https://openalex.org/W3160341580","doi":"https://doi.org/10.1109/ntms49979.2021.9432642","title":"A Private Key Recovery Scheme Using Partial Knowledge","display_name":"A Private Key Recovery Scheme Using Partial Knowledge","publication_year":2021,"publication_date":"2021-04-19","ids":{"openalex":"https://openalex.org/W3160341580","doi":"https://doi.org/10.1109/ntms49979.2021.9432642","mag":"3160341580"},"language":"en","primary_location":{"id":"doi:10.1109/ntms49979.2021.9432642","is_oa":false,"landing_page_url":"https://doi.org/10.1109/ntms49979.2021.9432642","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2021 11th IFIP International Conference on New Technologies, Mobility and Security (NTMS)","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/A5061479528","display_name":"Har Preet Singh","orcid":"https://orcid.org/0000-0002-9021-8999"},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Har Preet Singh","raw_affiliation_strings":["FIWARE Foundation,Berlin,Germany","FIWARE Foundation, Berlin, Germany"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"FIWARE Foundation,Berlin,Germany","institution_ids":[]},{"raw_affiliation_string":"FIWARE Foundation, Berlin, Germany","institution_ids":[]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5033440062","display_name":"Kyriakos Stefanidis","orcid":"https://orcid.org/0000-0002-2090-2218"},"institutions":[{"id":"https://openalex.org/I2800804238","display_name":"Fraunhofer Institute for Open Communication Systems","ror":"https://ror.org/00px80p03","country_code":"DE","type":"facility","lineage":["https://openalex.org/I2800804238","https://openalex.org/I4923324"]}],"countries":["DE"],"is_corresponding":false,"raw_author_name":"Kyriakos Stefanidis","raw_affiliation_strings":["Fraunhofer FOKUS,Berlin,Germany","Fraunhofer FOKUS, Berlin, Germany"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Fraunhofer FOKUS,Berlin,Germany","institution_ids":["https://openalex.org/I2800804238"]},{"raw_affiliation_string":"Fraunhofer FOKUS, Berlin, Germany","institution_ids":["https://openalex.org/I2800804238"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5002322151","display_name":"Fabian Kirstein","orcid":"https://orcid.org/0000-0002-9064-2546"},"institutions":[{"id":"https://openalex.org/I2800804238","display_name":"Fraunhofer Institute for Open Communication Systems","ror":"https://ror.org/00px80p03","country_code":"DE","type":"facility","lineage":["https://openalex.org/I2800804238","https://openalex.org/I4923324"]},{"id":"https://openalex.org/I4210117750","display_name":"Weizenbaum Institute","ror":"https://ror.org/023kksk09","country_code":"DE","type":"facility","lineage":["https://openalex.org/I176453806","https://openalex.org/I2800804238","https://openalex.org/I2801702882","https://openalex.org/I315704651","https://openalex.org/I4210117750","https://openalex.org/I4577782","https://openalex.org/I46043019","https://openalex.org/I4923324","https://openalex.org/I75951250"]}],"countries":["DE"],"is_corresponding":false,"raw_author_name":"Fabian Kirstein","raw_affiliation_strings":["Fraunhofer FOKUS Weizenbaum Institute,Berlin,Germany","Fraunhofer FOKUS Weizenbaum Institute, Berlin, Germany"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Fraunhofer FOKUS Weizenbaum Institute,Berlin,Germany","institution_ids":["https://openalex.org/I4210117750","https://openalex.org/I2800804238"]},{"raw_affiliation_string":"Fraunhofer FOKUS Weizenbaum Institute, Berlin, Germany","institution_ids":["https://openalex.org/I4210117750","https://openalex.org/I2800804238"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":3,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":1.1195,"has_fulltext":false,"cited_by_count":12,"citation_normalized_percentile":{"value":0.81966526,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":98},"biblio":{"volume":null,"issue":null,"first_page":"1","last_page":"5"},"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/T11598","display_name":"Internet Traffic Analysis and Secure E-voting","score":0.9987999796867371,"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":0.9983999729156494,"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/computer-science","display_name":"Computer science","score":0.7321125268936157},{"id":"https://openalex.org/keywords/computer-security","display_name":"Computer security","score":0.697581946849823},{"id":"https://openalex.org/keywords/encryption","display_name":"Encryption","score":0.6915484070777893},{"id":"https://openalex.org/keywords/usability","display_name":"Usability","score":0.6672114133834839},{"id":"https://openalex.org/keywords/key","display_name":"Key (lock)","score":0.6388482451438904},{"id":"https://openalex.org/keywords/public-key-cryptography","display_name":"Public-key cryptography","score":0.5629427433013916},{"id":"https://openalex.org/keywords/process","display_name":"Process (computing)","score":0.4550347328186035},{"id":"https://openalex.org/keywords/scheme","display_name":"Scheme (mathematics)","score":0.4216976463794708},{"id":"https://openalex.org/keywords/set","display_name":"Set (abstract data type)","score":0.41281193494796753},{"id":"https://openalex.org/keywords/internet-privacy","display_name":"Internet privacy","score":0.3945888876914978},{"id":"https://openalex.org/keywords/human\u2013computer-interaction","display_name":"Human\u2013computer interaction","score":0.08299991488456726}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.7321125268936157},{"id":"https://openalex.org/C38652104","wikidata":"https://www.wikidata.org/wiki/Q3510521","display_name":"Computer security","level":1,"score":0.697581946849823},{"id":"https://openalex.org/C148730421","wikidata":"https://www.wikidata.org/wiki/Q141090","display_name":"Encryption","level":2,"score":0.6915484070777893},{"id":"https://openalex.org/C170130773","wikidata":"https://www.wikidata.org/wiki/Q216378","display_name":"Usability","level":2,"score":0.6672114133834839},{"id":"https://openalex.org/C26517878","wikidata":"https://www.wikidata.org/wiki/Q228039","display_name":"Key (lock)","level":2,"score":0.6388482451438904},{"id":"https://openalex.org/C203062551","wikidata":"https://www.wikidata.org/wiki/Q201339","display_name":"Public-key cryptography","level":3,"score":0.5629427433013916},{"id":"https://openalex.org/C98045186","wikidata":"https://www.wikidata.org/wiki/Q205663","display_name":"Process (computing)","level":2,"score":0.4550347328186035},{"id":"https://openalex.org/C77618280","wikidata":"https://www.wikidata.org/wiki/Q1155772","display_name":"Scheme (mathematics)","level":2,"score":0.4216976463794708},{"id":"https://openalex.org/C177264268","wikidata":"https://www.wikidata.org/wiki/Q1514741","display_name":"Set (abstract data type)","level":2,"score":0.41281193494796753},{"id":"https://openalex.org/C108827166","wikidata":"https://www.wikidata.org/wiki/Q175975","display_name":"Internet privacy","level":1,"score":0.3945888876914978},{"id":"https://openalex.org/C107457646","wikidata":"https://www.wikidata.org/wiki/Q207434","display_name":"Human\u2013computer interaction","level":1,"score":0.08299991488456726},{"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/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.0},{"id":"https://openalex.org/C134306372","wikidata":"https://www.wikidata.org/wiki/Q7754","display_name":"Mathematical analysis","level":1,"score":0.0},{"id":"https://openalex.org/C199360897","wikidata":"https://www.wikidata.org/wiki/Q9143","display_name":"Programming language","level":1,"score":0.0}],"mesh":[],"locations_count":3,"locations":[{"id":"doi:10.1109/ntms49979.2021.9432642","is_oa":false,"landing_page_url":"https://doi.org/10.1109/ntms49979.2021.9432642","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2021 11th IFIP International Conference on New Technologies, Mobility and Security (NTMS)","raw_type":"proceedings-article"},{"id":"pmh:oai:fraunhofer.de:N-635076","is_oa":false,"landing_page_url":"http://publica.fraunhofer.de/documents/N-635076.html","pdf_url":null,"source":{"id":"https://openalex.org/S4306400801","display_name":"Publikationsdatenbank der Fraunhofer-Gesellschaft (Fraunhofer-Gesellschaft)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I4923324","host_organization_name":"Fraunhofer-Gesellschaft","host_organization_lineage":["https://openalex.org/I4923324"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"Fraunhofer FOKUS","raw_type":"conferenceObject"},{"id":"pmh:oai:null:publica/411223","is_oa":false,"landing_page_url":"https://publica.fraunhofer.de/handle/publica/411223","pdf_url":null,"source":{"id":"https://openalex.org/S4306400318","display_name":"Fraunhofer-Publica (Fraunhofer-Gesellschaft)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I4923324","host_organization_name":"Fraunhofer-Gesellschaft","host_organization_lineage":["https://openalex.org/I4923324"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"","raw_type":"conference paper"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[],"funders":[{"id":"https://openalex.org/F4320311687","display_name":"Ministry of Education","ror":"https://ror.org/03m01yf64"}],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":8,"referenced_works":["https://openalex.org/W2008257424","https://openalex.org/W2024562548","https://openalex.org/W2141420453","https://openalex.org/W2511750380","https://openalex.org/W2790927340","https://openalex.org/W2963681308","https://openalex.org/W3100681046","https://openalex.org/W6691613087"],"related_works":["https://openalex.org/W4389670110","https://openalex.org/W2187546663","https://openalex.org/W2429057255","https://openalex.org/W148745890","https://openalex.org/W2611942503","https://openalex.org/W2899790217","https://openalex.org/W2126037447","https://openalex.org/W4243688874","https://openalex.org/W2081673223","https://openalex.org/W2154930424"],"abstract_inverted_index":{"In":[0,44],"this":[1],"paper":[2],"we":[3,209],"explore":[4],"the":[5,30,38,55,64,73,80,88,97,108,113,119,138,163,184,221],"problem":[6],"of":[7,10,32,40,52,75,96,165,187,225],"secure":[8],"handling":[9],"private":[11,35,70,82,121,139,160],"keys":[12],"in":[13,176,191],"blockchain":[14,212],"applications.":[15],"We":[16,181],"present":[17,210],"a":[18,50,68,94,129,211,228],"novel":[19],"approach,":[20],"named":[21],"\"Partial":[22],"Knowledge":[23],"Recovery":[24],"Scheme\"":[25],"(PKRS),":[26],"which":[27,217],"allows":[28],"for":[29,107,220],"recovery":[31,109],"an":[33,46,151,166,195],"encrypted":[34,144],"key":[36,83,122,140,161],"through":[37,202],"use":[39,74,215],"personal":[41,178,188,197],"security":[42,133,189],"questions.":[43,99],"PKRS,":[45],"individual":[47,89,152],"is":[48,116],"asked":[49],"set":[51],"questions,":[53],"and":[54,66,134,145,170,205,223],"answers":[56],"to":[57,62,127,142,154,157,173],"those":[58],"questions":[59,190],"are":[60],"used":[61,219],"encrypt":[63],"input":[65],"produce":[67],"secured":[69,120],"key.":[71],"Through":[72],"Shamir's":[76],"secret":[77],"sharing":[78],"algorithm,":[79],"original":[81,98],"can":[84,90,199],"be":[85,143,155,171,200],"recovered":[86],"if":[87],"answer":[91],"correctly":[92],"only":[93],"subset":[95],"PKRS":[100,226],"does":[101],"not":[102],"require":[103],"any":[104],"external":[105],"services":[106],"process,":[110],"since":[111],"all":[112],"required":[114],"information":[115],"stored":[117,147],"within":[118,227],"itself.":[123],"This":[124],"approach":[125],"tries":[126],"achieve":[128],"middle":[130],"ground":[131],"between":[132],"usability.":[135],"Security,":[136],"where":[137,150,194],"needs":[141],"safely":[146],"offline.":[148],"Usability,":[149],"wants":[153],"able":[156,172],"recover":[158],"their":[159,177],"without":[162],"need":[164],"easily":[167],"forgotten":[168],"passphrase":[169],"store":[174],"it":[175],"cloud":[179],"environments.":[180],"also":[182],"discuss":[183],"correct":[185],"design":[186],"social":[192,206],"environments":[193],"individual's":[196],"data":[198],"mined":[201],"public":[203],"records":[204],"networks.":[207],"Finally,":[208],"Self-sovereign":[213],"Identity":[214],"case,":[216],"was":[218],"integration":[222],"evaluation":[224],"real-world":[229],"application.":[230]},"counts_by_year":[{"year":2025,"cited_by_count":4},{"year":2024,"cited_by_count":2},{"year":2023,"cited_by_count":3},{"year":2022,"cited_by_count":2},{"year":2021,"cited_by_count":1}],"updated_date":"2026-06-11T09:08:48.828518","created_date":"2025-10-10T00:00:00"}