{"id":"https://openalex.org/W4404094514","doi":"https://doi.org/10.1016/j.dcan.2024.10.012","title":"BCAS: blockchain-based secure access and sharing scheme for EHR data","display_name":"BCAS: blockchain-based secure access and sharing scheme for EHR data","publication_year":2024,"publication_date":"2024-11-06","ids":{"openalex":"https://openalex.org/W4404094514","doi":"https://doi.org/10.1016/j.dcan.2024.10.012"},"language":"en","primary_location":{"id":"doi:10.1016/j.dcan.2024.10.012","is_oa":true,"landing_page_url":"https://doi.org/10.1016/j.dcan.2024.10.012","pdf_url":null,"source":{"id":"https://openalex.org/S2495769766","display_name":"Digital Communications and Networks","issn_l":"2352-8648","issn":["2352-8648","2468-5925"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310320345","host_organization_name":"KeAi","host_organization_lineage":["https://openalex.org/P4310320345","https://openalex.org/P4310320990"],"host_organization_lineage_names":["KeAi","Elsevier BV"],"type":"journal"},"license":"cc-by-nc-nd","license_id":"https://openalex.org/licenses/cc-by-nc-nd","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Digital Communications and Networks","raw_type":"journal-article"},"type":"article","indexed_in":["crossref","doaj"],"open_access":{"is_oa":true,"oa_status":"diamond","oa_url":"https://doi.org/10.1016/j.dcan.2024.10.012","any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5018642252","display_name":"Biao Jin","orcid":"https://orcid.org/0000-0003-3401-1691"},"institutions":[{"id":"https://openalex.org/I111753288","display_name":"Fujian Normal University","ror":"https://ror.org/020azk594","country_code":"CN","type":"education","lineage":["https://openalex.org/I111753288"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Biao Jin","raw_affiliation_strings":["College of Computer and Cyber Security, Fujian Normal University, Fuzhou 350117, China"],"raw_orcid":"https://orcid.org/0000-0003-3401-1691","affiliations":[{"raw_affiliation_string":"College of Computer and Cyber Security, Fujian Normal University, Fuzhou 350117, China","institution_ids":["https://openalex.org/I111753288"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5059891518","display_name":"X Chen","orcid":"https://orcid.org/0009-0004-6009-697X"},"institutions":[{"id":"https://openalex.org/I111753288","display_name":"Fujian Normal University","ror":"https://ror.org/020azk594","country_code":"CN","type":"education","lineage":["https://openalex.org/I111753288"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Xinhong Chen","raw_affiliation_strings":["College of Computer and Cyber Security, Fujian Normal University, Fuzhou 350117, China"],"raw_orcid":"https://orcid.org/0009-0004-6009-697X","affiliations":[{"raw_affiliation_string":"College of Computer and Cyber Security, Fujian Normal University, Fuzhou 350117, China","institution_ids":["https://openalex.org/I111753288"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5060659901","display_name":"Jinbo Xiong","orcid":"https://orcid.org/0000-0001-9985-1953"},"institutions":[{"id":"https://openalex.org/I111753288","display_name":"Fujian Normal University","ror":"https://ror.org/020azk594","country_code":"CN","type":"education","lineage":["https://openalex.org/I111753288"]},{"id":"https://openalex.org/I169019527","display_name":"Quanzhou Normal University","ror":"https://ror.org/006ak0b38","country_code":"CN","type":"education","lineage":["https://openalex.org/I169019527"]},{"id":"https://openalex.org/I4210154330","display_name":"Liming Vocational University","ror":"https://ror.org/059s9d453","country_code":"CN","type":"education","lineage":["https://openalex.org/I4210154330"]}],"countries":["CN"],"is_corresponding":true,"raw_author_name":"Jinbo Xiong","raw_affiliation_strings":["Fujian Provincial Key Laboratory of Network Security and Cryptology, Fujian Normal University, Fuzhou 350117, China","Industrial School of Joint Innovation, Quanzhou Vocational and Technical University, Quanzhou 362268, China"],"raw_orcid":"https://orcid.org/0000-0001-9985-1953","affiliations":[{"raw_affiliation_string":"Fujian Provincial Key Laboratory of Network Security and Cryptology, Fujian Normal University, Fuzhou 350117, China","institution_ids":["https://openalex.org/I111753288"]},{"raw_affiliation_string":"Industrial School of Joint Innovation, Quanzhou Vocational and Technical University, Quanzhou 362268, China","institution_ids":["https://openalex.org/I4210154330","https://openalex.org/I169019527"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5106943653","display_name":"Xuan Li","orcid":"https://orcid.org/0000-0002-4013-8480"},"institutions":[{"id":"https://openalex.org/I111753288","display_name":"Fujian Normal University","ror":"https://ror.org/020azk594","country_code":"CN","type":"education","lineage":["https://openalex.org/I111753288"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Xuan Li","raw_affiliation_strings":["College of Computer and Cyber Security, Fujian Normal University, Fuzhou 350117, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"College of Computer and Cyber Security, Fujian Normal University, Fuzhou 350117, China","institution_ids":["https://openalex.org/I111753288"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5100646884","display_name":"Li Lin","orcid":"https://orcid.org/0000-0002-8500-198X"},"institutions":[{"id":"https://openalex.org/I111753288","display_name":"Fujian Normal University","ror":"https://ror.org/020azk594","country_code":"CN","type":"education","lineage":["https://openalex.org/I111753288"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Li Lin","raw_affiliation_strings":["College of Computer and Cyber Security, Fujian Normal University, Fuzhou 350117, China"],"raw_orcid":"https://orcid.org/0000-0002-8500-198X","affiliations":[{"raw_affiliation_string":"College of Computer and Cyber Security, Fujian Normal University, Fuzhou 350117, China","institution_ids":["https://openalex.org/I111753288"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5101638279","display_name":"Zhiqiang Yao","orcid":"https://orcid.org/0000-0002-8612-5984"},"institutions":[{"id":"https://openalex.org/I111753288","display_name":"Fujian Normal University","ror":"https://ror.org/020azk594","country_code":"CN","type":"education","lineage":["https://openalex.org/I111753288"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Zhiqiang Yao","raw_affiliation_strings":["College of Computer and Cyber Security, Fujian Normal University, Fuzhou 350117, China"],"raw_orcid":"https://orcid.org/0000-0002-8612-5984","affiliations":[{"raw_affiliation_string":"College of Computer and Cyber Security, Fujian Normal University, Fuzhou 350117, China","institution_ids":["https://openalex.org/I111753288"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":3,"corresponding_author_ids":["https://openalex.org/A5060659901"],"corresponding_institution_ids":["https://openalex.org/I111753288","https://openalex.org/I169019527","https://openalex.org/I4210154330"],"apc_list":null,"apc_paid":null,"fwci":5.3869,"has_fulltext":false,"cited_by_count":8,"citation_normalized_percentile":{"value":0.95875569,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":97,"max":99},"biblio":{"volume":"12","issue":"5","first_page":"765","last_page":"775"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10270","display_name":"Blockchain Technology Applications and Security","score":0.9994000196456909,"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":0.9994000196456909,"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":0.9979000091552734,"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":0.9954000115394592,"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/blockchain","display_name":"Blockchain","score":0.9496598243713379},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.8911103010177612},{"id":"https://openalex.org/keywords/scheme","display_name":"Scheme (mathematics)","score":0.6655945777893066},{"id":"https://openalex.org/keywords/data-sharing","display_name":"Data sharing","score":0.6016374230384827},{"id":"https://openalex.org/keywords/computer-security","display_name":"Computer security","score":0.41369086503982544},{"id":"https://openalex.org/keywords/computer-network","display_name":"Computer network","score":0.352518230676651},{"id":"https://openalex.org/keywords/medicine","display_name":"Medicine","score":0.08101359009742737}],"concepts":[{"id":"https://openalex.org/C2779687700","wikidata":"https://www.wikidata.org/wiki/Q20514253","display_name":"Blockchain","level":2,"score":0.9496598243713379},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.8911103010177612},{"id":"https://openalex.org/C77618280","wikidata":"https://www.wikidata.org/wiki/Q1155772","display_name":"Scheme (mathematics)","level":2,"score":0.6655945777893066},{"id":"https://openalex.org/C2779965156","wikidata":"https://www.wikidata.org/wiki/Q5227350","display_name":"Data sharing","level":3,"score":0.6016374230384827},{"id":"https://openalex.org/C38652104","wikidata":"https://www.wikidata.org/wiki/Q3510521","display_name":"Computer security","level":1,"score":0.41369086503982544},{"id":"https://openalex.org/C31258907","wikidata":"https://www.wikidata.org/wiki/Q1301371","display_name":"Computer network","level":1,"score":0.352518230676651},{"id":"https://openalex.org/C71924100","wikidata":"https://www.wikidata.org/wiki/Q11190","display_name":"Medicine","level":0,"score":0.08101359009742737},{"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/C142724271","wikidata":"https://www.wikidata.org/wiki/Q7208","display_name":"Pathology","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/C204787440","wikidata":"https://www.wikidata.org/wiki/Q188504","display_name":"Alternative medicine","level":2,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1016/j.dcan.2024.10.012","is_oa":true,"landing_page_url":"https://doi.org/10.1016/j.dcan.2024.10.012","pdf_url":null,"source":{"id":"https://openalex.org/S2495769766","display_name":"Digital Communications and Networks","issn_l":"2352-8648","issn":["2352-8648","2468-5925"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310320345","host_organization_name":"KeAi","host_organization_lineage":["https://openalex.org/P4310320345","https://openalex.org/P4310320990"],"host_organization_lineage_names":["KeAi","Elsevier BV"],"type":"journal"},"license":"cc-by-nc-nd","license_id":"https://openalex.org/licenses/cc-by-nc-nd","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Digital Communications and Networks","raw_type":"journal-article"}],"best_oa_location":{"id":"doi:10.1016/j.dcan.2024.10.012","is_oa":true,"landing_page_url":"https://doi.org/10.1016/j.dcan.2024.10.012","pdf_url":null,"source":{"id":"https://openalex.org/S2495769766","display_name":"Digital Communications and Networks","issn_l":"2352-8648","issn":["2352-8648","2468-5925"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310320345","host_organization_name":"KeAi","host_organization_lineage":["https://openalex.org/P4310320345","https://openalex.org/P4310320990"],"host_organization_lineage_names":["KeAi","Elsevier BV"],"type":"journal"},"license":"cc-by-nc-nd","license_id":"https://openalex.org/licenses/cc-by-nc-nd","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Digital Communications and Networks","raw_type":"journal-article"},"sustainable_development_goals":[],"awards":[{"id":"https://openalex.org/G505342534","display_name":null,"funder_award_id":"2021J01167","funder_id":"https://openalex.org/F4320321878","funder_display_name":"Natural Science Foundation of Fujian Province"},{"id":"https://openalex.org/G5310342163","display_name":null,"funder_award_id":"62272103","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G6318764068","display_name":null,"funder_award_id":"2023J01531","funder_id":"https://openalex.org/F4320321878","funder_display_name":"Natural Science Foundation of Fujian Province"},{"id":"https://openalex.org/G7339968161","display_name":null,"funder_award_id":"62272102","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G7822647789","display_name":null,"funder_award_id":"2023J01295","funder_id":"https://openalex.org/F4320321878","funder_display_name":"Natural Science Foundation of Fujian Province"},{"id":"https://openalex.org/G8023207571","display_name":null,"funder_award_id":"2023J02014","funder_id":"https://openalex.org/F4320321878","funder_display_name":"Natural Science Foundation of Fujian Province"}],"funders":[{"id":"https://openalex.org/F4320321001","display_name":"National Natural Science Foundation of China","ror":"https://ror.org/01h0zpd94"},{"id":"https://openalex.org/F4320321878","display_name":"Natural Science Foundation of Fujian Province","ror":null}],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":39,"referenced_works":["https://openalex.org/W1485800369","https://openalex.org/W1499934958","https://openalex.org/W2005725110","https://openalex.org/W2114428623","https://openalex.org/W2162345993","https://openalex.org/W2556834368","https://openalex.org/W2767072011","https://openalex.org/W2901922760","https://openalex.org/W2914424007","https://openalex.org/W2980277939","https://openalex.org/W2990181228","https://openalex.org/W2998977406","https://openalex.org/W3005995123","https://openalex.org/W3027603762","https://openalex.org/W3029602774","https://openalex.org/W3030149940","https://openalex.org/W3035621222","https://openalex.org/W3042848129","https://openalex.org/W3082944180","https://openalex.org/W3131804642","https://openalex.org/W3135289136","https://openalex.org/W3162648243","https://openalex.org/W3166494441","https://openalex.org/W3202964153","https://openalex.org/W3203276104","https://openalex.org/W3207795534","https://openalex.org/W4200036376","https://openalex.org/W4206311872","https://openalex.org/W4210699215","https://openalex.org/W4212871185","https://openalex.org/W4220839396","https://openalex.org/W4281250989","https://openalex.org/W4288062066","https://openalex.org/W4297036528","https://openalex.org/W4312731257","https://openalex.org/W4318617337","https://openalex.org/W4376481172","https://openalex.org/W4389474225","https://openalex.org/W4391235386"],"related_works":["https://openalex.org/W4210406818","https://openalex.org/W4306779889","https://openalex.org/W3048554917","https://openalex.org/W3211706803","https://openalex.org/W4382775358","https://openalex.org/W4246942721","https://openalex.org/W3209862047","https://openalex.org/W4386732777","https://openalex.org/W4304136894","https://openalex.org/W3216065934"],"abstract_inverted_index":{"Sharing":[0,42],"Electronic":[1],"Health":[2],"Record":[3],"(EHR)":[4],"data":[5,22,87,117,209],"is":[6],"critical":[7],"for":[8,51,69,174],"improving":[9],"medical":[10],"decision-making":[11],"and":[12,24,41,48,55,85,94,119,136,142,165,176,211,228],"emergency":[13],"care.":[14],"However,":[15],"EHRs":[16],"contain":[17],"sensitive":[18],"patient":[19,145],"information,":[20],"making":[21],"breaches":[23],"misuse":[25],"a":[26,45,189,224],"significant":[27],"concern":[28],"during":[29],"sharing.":[30],"To":[31],"tackle":[32],"this":[33],"challenge,":[34],"we":[35],"propose":[36],"the":[37,70,100,106,109,140,153,183],"Blockchain-Based":[38],"Secure":[39],"Access":[40],"(BCAS)":[43],"scheme,":[44],"patient-centered,":[46],"secure,":[47],"efficient":[49,205],"solution":[50],"large-scale":[52],"EHR":[53,121,146,217],"access":[54,83],"sharing":[56,122,218],"that":[57,130,152,202],"intelligently":[58],"combines":[59],"blockchain":[60,110],"with":[61,99,214],"proxy":[62,184],"re-encryption.":[63],"Four":[64],"smart":[65,102,157],"contracts":[66,158],"are":[67],"designed":[68],"BCAS":[71,131,203,220],"to":[72,231],"achieve":[73],"effective":[74],"user":[75],"identity":[76,80],"registration,":[77],"precise":[78],"virtual":[79],"verification,":[81],"strict":[82],"control,":[84],"secure":[86],"management.":[88],"The":[89,126,148,163],"adoption":[90],"of":[91,108,144,156],"hybrid":[92],"on-chain":[93,164],"off-chain":[95,166],"storage":[96,167],"structures,":[97],"coupled":[98],"four":[101],"contracts,":[103],"effectively":[104],"optimizes":[105],"efficiency":[107],"in":[111,193],"BCAS.":[112],"Proxy":[113],"re-encryption":[114,185],"further":[115],"enhances":[116],"confidentiality":[118],"streamlines":[120],"among":[123],"authorized":[124],"users.":[125],"security":[127,143,210],"analysis":[128],"indicates":[129],"can":[132,187],"resist":[133],"DDoS,":[134],"spoofing,":[135],"man-in-the-middle":[137],"attacks,":[138],"ensuring":[139],"privacy":[141],"data.":[147],"performance":[149,206],"evaluation":[150],"demonstrates":[151],"CPU":[154],"usage":[155],"does":[159],"not":[160],"exceed":[161],"15%.":[162],"structures":[168],"require":[169],"less":[170,194],"than":[171,195],"30":[172],"s":[173],"uploading":[175],"downloading":[177],"an":[178],"800":[179],"MB":[180,191],"file.":[181],"Additionally,":[182],"scheme":[186],"process":[188],"10":[190],"file":[192],"43":[196],"ms":[197],".":[198],"These":[199],"results":[200],"indicate":[201],"offers":[204,221],"without":[207],"compromising":[208],"privacy.":[212],"Compared":[213],"existing":[215],"blockchain-based":[216],"systems,":[219],"superior":[222],"performance,":[223],"more":[225],"comprehensive":[226],"solution,":[227],"increased":[229],"resistance":[230],"attacks.":[232]},"counts_by_year":[{"year":2026,"cited_by_count":2},{"year":2025,"cited_by_count":6}],"updated_date":"2026-07-15T18:14:33.161393","created_date":"2025-10-10T00:00:00"}
