{"id":"https://openalex.org/W4366595001","doi":"https://doi.org/10.1145/3544549.3585622","title":"PostGuard: Towards Easy and Secure Email Communication","display_name":"PostGuard: Towards Easy and Secure Email Communication","publication_year":2023,"publication_date":"2023-04-19","ids":{"openalex":"https://openalex.org/W4366595001","doi":"https://doi.org/10.1145/3544549.3585622"},"language":"en","primary_location":{"id":"doi:10.1145/3544549.3585622","is_oa":false,"landing_page_url":"http://dx.doi.org/10.1145/3544549.3585622","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Extended Abstracts of the 2023 CHI Conference on Human Factors in Computing Systems","raw_type":"proceedings-article"},"type":"article","indexed_in":["crossref"],"open_access":{"is_oa":true,"oa_status":"green","oa_url":"https://repository.ubn.ru.nl/bitstream/handle/2066/292101/1/292101.pdf","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5051366684","display_name":"Leon Botros","orcid":"https://orcid.org/0009-0001-8466-0879"},"institutions":[{"id":"https://openalex.org/I145872427","display_name":"Radboud University Nijmegen","ror":"https://ror.org/016xsfp80","country_code":"NL","type":"education","lineage":["https://openalex.org/I145872427"]}],"countries":["NL"],"is_corresponding":false,"raw_author_name":"Leon Botros","raw_affiliation_strings":["Radboud University, Netherlands"],"raw_orcid":"https://orcid.org/0009-0001-8466-0879","affiliations":[{"raw_affiliation_string":"Radboud University, Netherlands","institution_ids":["https://openalex.org/I145872427"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5004586400","display_name":"Merel Brandon","orcid":"https://orcid.org/0000-0001-6239-8673"},"institutions":[{"id":"https://openalex.org/I145872427","display_name":"Radboud University Nijmegen","ror":"https://ror.org/016xsfp80","country_code":"NL","type":"education","lineage":["https://openalex.org/I145872427"]}],"countries":["NL"],"is_corresponding":false,"raw_author_name":"Merel Brandon","raw_affiliation_strings":["Radboud University, Netherlands"],"raw_orcid":"https://orcid.org/0000-0001-6239-8673","affiliations":[{"raw_affiliation_string":"Radboud University, Netherlands","institution_ids":["https://openalex.org/I145872427"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5102972733","display_name":"Bart Jacobs","orcid":"https://orcid.org/0000-0002-0740-0336"},"institutions":[{"id":"https://openalex.org/I145872427","display_name":"Radboud University Nijmegen","ror":"https://ror.org/016xsfp80","country_code":"NL","type":"education","lineage":["https://openalex.org/I145872427"]}],"countries":["NL"],"is_corresponding":false,"raw_author_name":"Bart Jacobs","raw_affiliation_strings":["Radboud University, Netherlands"],"raw_orcid":"https://orcid.org/0000-0002-0740-0336","affiliations":[{"raw_affiliation_string":"Radboud University, Netherlands","institution_ids":["https://openalex.org/I145872427"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5033125098","display_name":"Daniel Ostkamp","orcid":null},"institutions":[{"id":"https://openalex.org/I145872427","display_name":"Radboud University Nijmegen","ror":"https://ror.org/016xsfp80","country_code":"NL","type":"education","lineage":["https://openalex.org/I145872427"]}],"countries":["NL"],"is_corresponding":false,"raw_author_name":"Daniel Ostkamp","raw_affiliation_strings":["Radboud University, Netherlands"],"raw_orcid":"https://orcid.org/0000-0003-0665-5369","affiliations":[{"raw_affiliation_string":"Radboud University, Netherlands","institution_ids":["https://openalex.org/I145872427"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5023907150","display_name":"Hanna Schraffenberger","orcid":"https://orcid.org/0000-0003-1847-2754"},"institutions":[{"id":"https://openalex.org/I145872427","display_name":"Radboud University Nijmegen","ror":"https://ror.org/016xsfp80","country_code":"NL","type":"education","lineage":["https://openalex.org/I145872427"]}],"countries":["NL"],"is_corresponding":false,"raw_author_name":"Hanna Schraffenberger","raw_affiliation_strings":["Radboud University, Netherlands"],"raw_orcid":"https://orcid.org/0000-0003-1847-2754","affiliations":[{"raw_affiliation_string":"Radboud University, Netherlands","institution_ids":["https://openalex.org/I145872427"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5071459579","display_name":"Marloes Venema","orcid":"https://orcid.org/0000-0003-4483-400X"},"institutions":[{"id":"https://openalex.org/I145872427","display_name":"Radboud University Nijmegen","ror":"https://ror.org/016xsfp80","country_code":"NL","type":"education","lineage":["https://openalex.org/I145872427"]}],"countries":["NL"],"is_corresponding":false,"raw_author_name":"Marloes Venema","raw_affiliation_strings":["Radboud University, Netherlands"],"raw_orcid":"https://orcid.org/0000-0003-4483-400X","affiliations":[{"raw_affiliation_string":"Radboud University, Netherlands","institution_ids":["https://openalex.org/I145872427"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":6,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":1.2941,"has_fulltext":true,"cited_by_count":3,"citation_normalized_percentile":{"value":0.83467514,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":90,"max":99},"biblio":{"volume":null,"issue":null,"first_page":"1","last_page":"6"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11800","display_name":"User Authentication and Security Systems","score":0.9961000084877014,"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/T11800","display_name":"User Authentication and Security Systems","score":0.9961000084877014,"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/T11896","display_name":"Opportunistic and Delay-Tolerant Networks","score":0.9958000183105469,"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/T11598","display_name":"Internet Traffic Analysis and Secure E-voting","score":0.9940000176429749,"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":0.8369767665863037},{"id":"https://openalex.org/keywords/novelty","display_name":"Novelty","score":0.8040210008621216},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.7148779034614563},{"id":"https://openalex.org/keywords/computer-security","display_name":"Computer security","score":0.696368396282196},{"id":"https://openalex.org/keywords/confidentiality","display_name":"Confidentiality","score":0.676378607749939},{"id":"https://openalex.org/keywords/identity","display_name":"Identity (music)","score":0.6351744532585144},{"id":"https://openalex.org/keywords/authentication","display_name":"Authentication (law)","score":0.5852393507957458},{"id":"https://openalex.org/keywords/public-key-cryptography","display_name":"Public-key cryptography","score":0.5279920101165771},{"id":"https://openalex.org/keywords/internet-privacy","display_name":"Internet privacy","score":0.5065861940383911},{"id":"https://openalex.org/keywords/cryptography","display_name":"Cryptography","score":0.4286348521709442},{"id":"https://openalex.org/keywords/world-wide-web","display_name":"World Wide Web","score":0.33541250228881836},{"id":"https://openalex.org/keywords/psychology","display_name":"Psychology","score":0.07325541973114014}],"concepts":[{"id":"https://openalex.org/C148730421","wikidata":"https://www.wikidata.org/wiki/Q141090","display_name":"Encryption","level":2,"score":0.8369767665863037},{"id":"https://openalex.org/C2778738651","wikidata":"https://www.wikidata.org/wiki/Q16546687","display_name":"Novelty","level":2,"score":0.8040210008621216},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.7148779034614563},{"id":"https://openalex.org/C38652104","wikidata":"https://www.wikidata.org/wiki/Q3510521","display_name":"Computer security","level":1,"score":0.696368396282196},{"id":"https://openalex.org/C71745522","wikidata":"https://www.wikidata.org/wiki/Q2476929","display_name":"Confidentiality","level":2,"score":0.676378607749939},{"id":"https://openalex.org/C2778355321","wikidata":"https://www.wikidata.org/wiki/Q17079427","display_name":"Identity (music)","level":2,"score":0.6351744532585144},{"id":"https://openalex.org/C148417208","wikidata":"https://www.wikidata.org/wiki/Q4825882","display_name":"Authentication (law)","level":2,"score":0.5852393507957458},{"id":"https://openalex.org/C203062551","wikidata":"https://www.wikidata.org/wiki/Q201339","display_name":"Public-key cryptography","level":3,"score":0.5279920101165771},{"id":"https://openalex.org/C108827166","wikidata":"https://www.wikidata.org/wiki/Q175975","display_name":"Internet privacy","level":1,"score":0.5065861940383911},{"id":"https://openalex.org/C178489894","wikidata":"https://www.wikidata.org/wiki/Q8789","display_name":"Cryptography","level":2,"score":0.4286348521709442},{"id":"https://openalex.org/C136764020","wikidata":"https://www.wikidata.org/wiki/Q466","display_name":"World Wide Web","level":1,"score":0.33541250228881836},{"id":"https://openalex.org/C15744967","wikidata":"https://www.wikidata.org/wiki/Q9418","display_name":"Psychology","level":0,"score":0.07325541973114014},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.0},{"id":"https://openalex.org/C77805123","wikidata":"https://www.wikidata.org/wiki/Q161272","display_name":"Social psychology","level":1,"score":0.0},{"id":"https://openalex.org/C24890656","wikidata":"https://www.wikidata.org/wiki/Q82811","display_name":"Acoustics","level":1,"score":0.0}],"mesh":[],"locations_count":3,"locations":[{"id":"doi:10.1145/3544549.3585622","is_oa":false,"landing_page_url":"http://dx.doi.org/10.1145/3544549.3585622","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Extended Abstracts of the 2023 CHI Conference on Human Factors in Computing Systems","raw_type":"proceedings-article"},{"id":"pmh:ru:oai:repository.ubn.ru.nl:2066/292101","is_oa":true,"landing_page_url":"http://hdl.handle.net/2066/292101","pdf_url":"https://repository.ubn.ru.nl/bitstream/handle/2066/292101/1/292101.pdf","source":{"id":"https://openalex.org/S4306401843","display_name":"Data Archiving and Networked Services (DANS)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I1322597698","host_organization_name":"Royal Netherlands Academy of Arts and Sciences","host_organization_lineage":["https://openalex.org/I1322597698"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"Schmidt, A. (ed.), CHI EA '23: Extended Abstracts of the 2023 CHI Conference on Human Factors in Computing Systems Hamburg Germany April 23 - 28, 2023, 1 - 6. New York : ACM","raw_type":"info:eu-repo/semantics/article"},{"id":"pmh:oai:repository.ubn.ru.nl:2066/292101","is_oa":false,"landing_page_url":"https://hdl.handle.net/2066/292101","pdf_url":null,"source":{"id":"https://openalex.org/S4306401067","display_name":"Radboud Repository (Radboud University)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I145872427","host_organization_name":"Radboud University Nijmegen","host_organization_lineage":["https://openalex.org/I145872427"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"","raw_type":"Article in monograph or in proceedings"}],"best_oa_location":{"id":"pmh:ru:oai:repository.ubn.ru.nl:2066/292101","is_oa":true,"landing_page_url":"http://hdl.handle.net/2066/292101","pdf_url":"https://repository.ubn.ru.nl/bitstream/handle/2066/292101/1/292101.pdf","source":{"id":"https://openalex.org/S4306401843","display_name":"Data Archiving and Networked Services (DANS)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I1322597698","host_organization_name":"Royal Netherlands Academy of Arts and Sciences","host_organization_lineage":["https://openalex.org/I1322597698"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"Schmidt, A. (ed.), CHI EA '23: Extended Abstracts of the 2023 CHI Conference on Human Factors in Computing Systems Hamburg Germany April 23 - 28, 2023, 1 - 6. New York : ACM","raw_type":"info:eu-repo/semantics/article"},"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"pdf":true,"grobid_xml":true},"content_urls":{"pdf":"https://content.openalex.org/works/W4366595001.pdf","grobid_xml":"https://content.openalex.org/works/W4366595001.grobid-xml"},"referenced_works_count":14,"referenced_works":["https://openalex.org/W1509135693","https://openalex.org/W1565871323","https://openalex.org/W1995639818","https://openalex.org/W2012915147","https://openalex.org/W2031666191","https://openalex.org/W2156186849","https://openalex.org/W2339750270","https://openalex.org/W2412850938","https://openalex.org/W2722360008","https://openalex.org/W2969632906","https://openalex.org/W2982321410","https://openalex.org/W3179713882","https://openalex.org/W3208153782","https://openalex.org/W4297192561"],"related_works":["https://openalex.org/W4387497383","https://openalex.org/W3183948672","https://openalex.org/W3173606202","https://openalex.org/W3110381201","https://openalex.org/W2948807893","https://openalex.org/W2935909890","https://openalex.org/W2778153218","https://openalex.org/W2758277628","https://openalex.org/W1531601525","https://openalex.org/W767161385"],"abstract_inverted_index":{"This":[0,119],"paper":[1,108,120],"presents":[2],"PostGuard:":[3],"a":[4,29],"secure":[5],"email":[6,56],"encryption":[7,27],"solution":[8],"for":[9,115,136],"communication":[10],"in":[11,22,46],"the":[12,23,49,61,76,100,110,122],"private":[13],"and":[14,117,126,130,134],"public":[15],"sectors.":[16],"The":[17,84,103],"novelty":[18],"of":[19,25,48,106,113,128],"PostGuard":[20,79,114,129],"lies":[21],"combination":[24],"identity-based":[26],"with":[28],"digital":[30,62],"identity":[31,63],"wallet.":[32],"Within":[33],"this":[34,107],"setting,":[35],"senders":[36],"specify":[37],"who":[38],"should":[39],"be":[40],"able":[41],"to":[42,67,74,82,89,95],"read/decrypt":[43],"their":[44,53],"emails":[45],"terms":[47],"recipient\u2019s":[50],"attributes":[51,73],"(e.g.,":[52],"name":[54],"and/or":[55],"address).":[57],"Subsequently,":[58],"recipients":[59],"use":[60],"wallet":[64],"app":[65],"Yivi":[66],"prove":[68,96],"that":[69,97],"they":[70],"possess":[71],"these":[72],"decrypt":[75],"mails.":[77],"Thus,":[78],"reduces":[80],"decryption":[81],"authentication.":[83],"underlying":[85],"mental":[86],"model":[87],"is:":[88],"see":[90],"confidential":[91],"information,":[92],"you":[93,98],"need":[94],"are":[99],"intended":[101],"recipient.":[102],"main":[104],"contribution":[105],"is":[109],"working":[111],"prototype":[112],"Outlook":[116],"Thunderbird.":[118],"describes":[121],"concept,":[123],"setup,":[124],"implementation,":[125],"design":[127],"discusses":[131],"current":[132],"limitations":[133],"plans":[135],"future":[137],"work.":[138]},"counts_by_year":[{"year":2026,"cited_by_count":2},{"year":2024,"cited_by_count":1}],"updated_date":"2026-06-11T09:08:48.828518","created_date":"2025-10-10T00:00:00"}
