{"id":"https://openalex.org/W7117120202","doi":"https://doi.org/10.1109/brains67003.2025.11302955","title":"Privacy-Preserving \u201cRight to Be Forgotten\u201d in Configurable Blockchain Tokenization: A Cryptographic Audit Framework","display_name":"Privacy-Preserving \u201cRight to Be Forgotten\u201d in Configurable Blockchain Tokenization: A Cryptographic Audit Framework","publication_year":2025,"publication_date":"2025-11-18","ids":{"openalex":"https://openalex.org/W7117120202","doi":"https://doi.org/10.1109/brains67003.2025.11302955"},"language":null,"primary_location":{"id":"doi:10.1109/brains67003.2025.11302955","is_oa":false,"landing_page_url":"https://doi.org/10.1109/brains67003.2025.11302955","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2025 7th Conference on Blockchain Research & Applications for Innovative Networks and Services (BRAINS)","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/A5121152725","display_name":"Pierre Ghaly","orcid":null},"institutions":[{"id":"https://openalex.org/I17389662","display_name":"University of Nicosia","ror":"https://ror.org/04v18t651","country_code":"CY","type":"education","lineage":["https://openalex.org/I17389662"]}],"countries":["CY"],"is_corresponding":true,"raw_author_name":"Pierre Ghaly","raw_affiliation_strings":["University of Nicosia,Department of Computer Science School of Sciences and Engineering,Nicosia,Cyprus"],"affiliations":[{"raw_affiliation_string":"University of Nicosia,Department of Computer Science School of Sciences and Engineering,Nicosia,Cyprus","institution_ids":["https://openalex.org/I17389662"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5098567051","display_name":"Harald Gjermundr\u00f8d","orcid":null},"institutions":[{"id":"https://openalex.org/I17389662","display_name":"University of Nicosia","ror":"https://ror.org/04v18t651","country_code":"CY","type":"education","lineage":["https://openalex.org/I17389662"]}],"countries":["CY"],"is_corresponding":false,"raw_author_name":"Harald Gjermundr\u00f8d","raw_affiliation_strings":["University of Nicosia,Department of Computer Science School of Sciences and Engineering,Nicosia,Cyprus"],"affiliations":[{"raw_affiliation_string":"University of Nicosia,Department of Computer Science School of Sciences and Engineering,Nicosia,Cyprus","institution_ids":["https://openalex.org/I17389662"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5006658823","display_name":"Ioanna Dionysiou","orcid":"https://orcid.org/0000-0002-7274-5269"},"institutions":[{"id":"https://openalex.org/I17389662","display_name":"University of Nicosia","ror":"https://ror.org/04v18t651","country_code":"CY","type":"education","lineage":["https://openalex.org/I17389662"]}],"countries":["CY"],"is_corresponding":false,"raw_author_name":"Ioanna Dionysiou","raw_affiliation_strings":["University of Nicosia,Department of Computer Science School of Sciences and Engineering,Nicosia,Cyprus"],"affiliations":[{"raw_affiliation_string":"University of Nicosia,Department of Computer Science School of Sciences and Engineering,Nicosia,Cyprus","institution_ids":["https://openalex.org/I17389662"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":3,"corresponding_author_ids":["https://openalex.org/A5121152725"],"corresponding_institution_ids":["https://openalex.org/I17389662"],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":false,"cited_by_count":0,"citation_normalized_percentile":{"value":0.77208396,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":null,"issue":null,"first_page":"1","last_page":"8"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10270","display_name":"Blockchain Technology Applications and Security","score":0.683899998664856,"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":0.683899998664856,"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/T10237","display_name":"Cryptography and Data Security","score":0.0940999984741211,"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/T12122","display_name":"Physical Unclonable Functions (PUFs) and Hardware Security","score":0.09380000084638596,"subfield":{"id":"https://openalex.org/subfields/1708","display_name":"Hardware and Architecture"},"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/cryptography","display_name":"Cryptography","score":0.6335999965667725},{"id":"https://openalex.org/keywords/cryptographic-primitive","display_name":"Cryptographic primitive","score":0.5785999894142151},{"id":"https://openalex.org/keywords/verifiable-secret-sharing","display_name":"Verifiable secret sharing","score":0.5752000212669373},{"id":"https://openalex.org/keywords/blockchain","display_name":"Blockchain","score":0.5221999883651733},{"id":"https://openalex.org/keywords/mathematical-proof","display_name":"Mathematical proof","score":0.49149999022483826},{"id":"https://openalex.org/keywords/audit-trail","display_name":"Audit trail","score":0.48739999532699585},{"id":"https://openalex.org/keywords/lexical-analysis","display_name":"Lexical analysis","score":0.43810001015663147},{"id":"https://openalex.org/keywords/audit","display_name":"Audit","score":0.42160001397132874},{"id":"https://openalex.org/keywords/information-privacy","display_name":"Information privacy","score":0.4163999855518341}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.7815999984741211},{"id":"https://openalex.org/C178489894","wikidata":"https://www.wikidata.org/wiki/Q8789","display_name":"Cryptography","level":2,"score":0.6335999965667725},{"id":"https://openalex.org/C15927051","wikidata":"https://www.wikidata.org/wiki/Q246593","display_name":"Cryptographic primitive","level":4,"score":0.5785999894142151},{"id":"https://openalex.org/C85847156","wikidata":"https://www.wikidata.org/wiki/Q59015987","display_name":"Verifiable secret sharing","level":3,"score":0.5752000212669373},{"id":"https://openalex.org/C38652104","wikidata":"https://www.wikidata.org/wiki/Q3510521","display_name":"Computer security","level":1,"score":0.5733000040054321},{"id":"https://openalex.org/C2779687700","wikidata":"https://www.wikidata.org/wiki/Q20514253","display_name":"Blockchain","level":2,"score":0.5221999883651733},{"id":"https://openalex.org/C108710211","wikidata":"https://www.wikidata.org/wiki/Q11538","display_name":"Mathematical proof","level":2,"score":0.49149999022483826},{"id":"https://openalex.org/C80958533","wikidata":"https://www.wikidata.org/wiki/Q1047174","display_name":"Audit trail","level":3,"score":0.48739999532699585},{"id":"https://openalex.org/C176982825","wikidata":"https://www.wikidata.org/wiki/Q835922","display_name":"Lexical analysis","level":2,"score":0.43810001015663147},{"id":"https://openalex.org/C199521495","wikidata":"https://www.wikidata.org/wiki/Q181487","display_name":"Audit","level":2,"score":0.42160001397132874},{"id":"https://openalex.org/C123201435","wikidata":"https://www.wikidata.org/wiki/Q456632","display_name":"Information privacy","level":2,"score":0.4163999855518341},{"id":"https://openalex.org/C33884865","wikidata":"https://www.wikidata.org/wiki/Q1254335","display_name":"Cryptographic protocol","level":3,"score":0.388700008392334},{"id":"https://openalex.org/C26517878","wikidata":"https://www.wikidata.org/wiki/Q228039","display_name":"Key (lock)","level":2,"score":0.36149999499320984},{"id":"https://openalex.org/C2776452267","wikidata":"https://www.wikidata.org/wiki/Q1503443","display_name":"Secrecy","level":2,"score":0.33309999108314514},{"id":"https://openalex.org/C2779950589","wikidata":"https://www.wikidata.org/wiki/Q7544035","display_name":"Smart contract","level":3,"score":0.3305000066757202},{"id":"https://openalex.org/C33762810","wikidata":"https://www.wikidata.org/wiki/Q461671","display_name":"Data integrity","level":2,"score":0.32260000705718994},{"id":"https://openalex.org/C2779777834","wikidata":"https://www.wikidata.org/wiki/Q4202277","display_name":"Enforcement","level":2,"score":0.30079999566078186},{"id":"https://openalex.org/C203062551","wikidata":"https://www.wikidata.org/wiki/Q201339","display_name":"Public-key cryptography","level":3,"score":0.2906000018119812},{"id":"https://openalex.org/C20136886","wikidata":"https://www.wikidata.org/wiki/Q749647","display_name":"Interoperability","level":2,"score":0.27720001339912415},{"id":"https://openalex.org/C205383636","wikidata":"https://www.wikidata.org/wiki/Q14746","display_name":"Merkle tree","level":4,"score":0.2689000070095062},{"id":"https://openalex.org/C26713055","wikidata":"https://www.wikidata.org/wiki/Q245962","display_name":"Implementation","level":2,"score":0.2660999894142151},{"id":"https://openalex.org/C2780385302","wikidata":"https://www.wikidata.org/wiki/Q367158","display_name":"Protocol (science)","level":3,"score":0.25609999895095825},{"id":"https://openalex.org/C71745522","wikidata":"https://www.wikidata.org/wiki/Q2476929","display_name":"Confidentiality","level":2,"score":0.25519999861717224}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/brains67003.2025.11302955","is_oa":false,"landing_page_url":"https://doi.org/10.1109/brains67003.2025.11302955","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2025 7th Conference on Blockchain Research & Applications for Innovative Networks and Services (BRAINS)","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":13,"referenced_works":["https://openalex.org/W2164090669","https://openalex.org/W2999757751","https://openalex.org/W4213429827","https://openalex.org/W4220704242","https://openalex.org/W4294301013","https://openalex.org/W4312972162","https://openalex.org/W4363648068","https://openalex.org/W4366818834","https://openalex.org/W4396852340","https://openalex.org/W4402533111","https://openalex.org/W4404914564","https://openalex.org/W4405642840","https://openalex.org/W4411729659"],"related_works":[],"abstract_inverted_index":{"Blockchain":[0],"tokenization":[1,63,161],"ecosystems":[2],"face":[3],"significant":[4],"challenges":[5],"in":[6,61,147,160],"complying":[7],"with":[8,32],"privacy":[9,150],"regulations":[10],"such":[11],"as":[12],"the":[13,20,33,115],"General":[14],"Data":[15],"Protection":[16],"Regulation":[17],"(GDPR),":[18],"particularly":[19],"\u201cRight":[21],"to":[22,81],"Be":[23],"Forgotten\u201d":[24],"mandate.":[25],"The":[26,90],"immutable":[27],"nature":[28],"of":[29,125,134],"blockchain":[30,88,149],"conflicts":[31],"requirement":[34],"for":[35,56,73,157],"data":[36,59,84,107,136],"deletion,":[37],"creating":[38],"a":[39,51,93,123,154],"fundamental":[40],"tension":[41],"between":[42],"technological":[43],"capabilities":[44],"and":[45,76,98,121,152],"regulatory":[46,158],"compliance.":[47],"This":[48],"paper":[49],"presents":[50],"novel":[52],"cryptographic":[53,68,110,132],"audit":[54,74,128],"framework":[55,91],"implementing":[57],"GDPR-compliant":[58],"erasure":[60,108],"configurable":[62],"systems.":[64],"Our":[65,142],"approach":[66],"leverages":[67],"key":[69],"destruction,":[70],"zero-knowledge":[71],"proofs":[72,133],"trails,":[75],"automated":[77],"smart":[78],"contract":[79],"mechanisms":[80],"achieve":[82],"practical":[83,155],"deletion":[85,137],"while":[86],"preserving":[87],"immutability.":[89],"introduces":[92],"triple-layer":[94],"architecture":[95],"separating":[96],"on-chain":[97],"off-chain":[99,102],"references":[100],"from":[101],"sensitive":[103,140],"data,":[104],"enabling":[105],"verifiable":[106],"through":[109,118],"\u201cshredding\u201d":[111],"techniques.":[112],"We":[113],"demonstrate":[114],"framework\u2019s":[116],"effectiveness":[117],"detailed":[119],"algorithms":[120],"present":[122],"proof":[124],"concept":[126],"comprehensive":[127],"mechanism":[129],"that":[130],"generates":[131],"successful":[135],"without":[138],"revealing":[139],"information.":[141],"solution":[143],"addresses":[144],"critical":[145],"gaps":[146],"current":[148],"implementations":[151],"provides":[153],"pathway":[156],"compliance":[159],"ecosystems.":[162]},"counts_by_year":[],"updated_date":"2026-02-23T20:09:44.859080","created_date":"2025-12-24T00:00:00"}