{"id":"https://openalex.org/W4388017378","doi":"https://doi.org/10.1109/jiot.2023.3328382","title":"Flexible and Fine-Grained Access Control for EHR in Blockchain-Assisted E-Healthcare Systems","display_name":"Flexible and Fine-Grained Access Control for EHR in Blockchain-Assisted E-Healthcare Systems","publication_year":2023,"publication_date":"2023-10-30","ids":{"openalex":"https://openalex.org/W4388017378","doi":"https://doi.org/10.1109/jiot.2023.3328382"},"language":"en","primary_location":{"id":"doi:10.1109/jiot.2023.3328382","is_oa":false,"landing_page_url":"https://doi.org/10.1109/jiot.2023.3328382","pdf_url":null,"source":{"id":"https://openalex.org/S2480266640","display_name":"IEEE Internet of Things Journal","issn_l":"2327-4662","issn":["2327-4662","2372-2541"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319808","host_organization_name":"Institute of Electrical and Electronics Engineers","host_organization_lineage":["https://openalex.org/P4310319808"],"host_organization_lineage_names":["Institute of Electrical and Electronics Engineers"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE Internet of Things Journal","raw_type":"journal-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/A5073181706","display_name":"Dajiang Chen","orcid":"https://orcid.org/0000-0003-0745-5836"},"institutions":[{"id":"https://openalex.org/I150229711","display_name":"University of Electronic Science and Technology of China","ror":"https://ror.org/04qr3zq92","country_code":"CN","type":"education","lineage":["https://openalex.org/I150229711"]}],"countries":["CN"],"is_corresponding":true,"raw_author_name":"Dajiang Chen","raw_affiliation_strings":["Network and Data Security Key Laboratory of Sichuan Province, University of Electronic Science and Technology of China, Chengdu, China"],"affiliations":[{"raw_affiliation_string":"Network and Data Security Key Laboratory of Sichuan Province, University of Electronic Science and Technology of China, Chengdu, China","institution_ids":["https://openalex.org/I150229711"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5100425790","display_name":"Li Zhang","orcid":"https://orcid.org/0009-0005-8821-8921"},"institutions":[{"id":"https://openalex.org/I150229711","display_name":"University of Electronic Science and Technology of China","ror":"https://ror.org/04qr3zq92","country_code":"CN","type":"education","lineage":["https://openalex.org/I150229711"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Li Zhang","raw_affiliation_strings":["Network and Data Security Key Laboratory of Sichuan Province, University of Electronic Science and Technology of China, Chengdu, China"],"affiliations":[{"raw_affiliation_string":"Network and Data Security Key Laboratory of Sichuan Province, University of Electronic Science and Technology of China, Chengdu, China","institution_ids":["https://openalex.org/I150229711"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5113374435","display_name":"Zeyu Liao","orcid":null},"institutions":[{"id":"https://openalex.org/I150229711","display_name":"University of Electronic Science and Technology of China","ror":"https://ror.org/04qr3zq92","country_code":"CN","type":"education","lineage":["https://openalex.org/I150229711"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Zeyu Liao","raw_affiliation_strings":["Network and Data Security Key Laboratory of Sichuan Province, University of Electronic Science and Technology of China, Chengdu, China"],"affiliations":[{"raw_affiliation_string":"Network and Data Security Key Laboratory of Sichuan Province, University of Electronic Science and Technology of China, Chengdu, China","institution_ids":["https://openalex.org/I150229711"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5072659343","display_name":"Hong\u2010Ning Dai","orcid":"https://orcid.org/0000-0001-6165-4196"},"institutions":[{"id":"https://openalex.org/I141568987","display_name":"Hong Kong Baptist University","ror":"https://ror.org/0145fw131","country_code":"HK","type":"education","lineage":["https://openalex.org/I141568987"]}],"countries":["HK"],"is_corresponding":false,"raw_author_name":"Hong-Ning Dai","raw_affiliation_strings":["Department of Computer Science, Hong Kong Baptist University, Hong Kong, China"],"affiliations":[{"raw_affiliation_string":"Department of Computer Science, Hong Kong Baptist University, Hong Kong, China","institution_ids":["https://openalex.org/I141568987"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5100404886","display_name":"Ning Zhang","orcid":"https://orcid.org/0000-0002-8781-4925"},"institutions":[{"id":"https://openalex.org/I74413500","display_name":"University of Windsor","ror":"https://ror.org/01gw3d370","country_code":"CA","type":"education","lineage":["https://openalex.org/I74413500"]}],"countries":["CA"],"is_corresponding":false,"raw_author_name":"Ning Zhang","raw_affiliation_strings":["Department of Electrical and Computer Engineering, University of Windsor, Windsor, Canada"],"affiliations":[{"raw_affiliation_string":"Department of Electrical and Computer Engineering, University of Windsor, Windsor, Canada","institution_ids":["https://openalex.org/I74413500"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5100773343","display_name":"Xuemin Shen","orcid":"https://orcid.org/0000-0002-4140-287X"},"institutions":[{"id":"https://openalex.org/I151746483","display_name":"University of Waterloo","ror":"https://ror.org/01aff2v68","country_code":"CA","type":"education","lineage":["https://openalex.org/I151746483"]}],"countries":["CA"],"is_corresponding":false,"raw_author_name":"Xuemin Shen","raw_affiliation_strings":["Department of Electrical and Computer Engineering, University of Waterloo, Waterloo, Canada","Department of Electrical and Computer Engineering, University of Waterloo, Waterloo, ON, Canada"],"affiliations":[{"raw_affiliation_string":"Department of Electrical and Computer Engineering, University of Waterloo, Waterloo, Canada","institution_ids":["https://openalex.org/I151746483"]},{"raw_affiliation_string":"Department of Electrical and Computer Engineering, University of Waterloo, Waterloo, ON, Canada","institution_ids":["https://openalex.org/I151746483"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5101813367","display_name":"Minghui Pang","orcid":"https://orcid.org/0009-0003-9705-8443"},"institutions":[{"id":"https://openalex.org/I150229711","display_name":"University of Electronic Science and Technology of China","ror":"https://ror.org/04qr3zq92","country_code":"CN","type":"education","lineage":["https://openalex.org/I150229711"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Minghui Pang","raw_affiliation_strings":["Department of Geriatric Surgery, Sichuan Provincial People’s Hospital, University of Electronic Science and Technology of China, Chengdu, China"],"affiliations":[{"raw_affiliation_string":"Department of Geriatric Surgery, Sichuan Provincial People’s Hospital, University of Electronic Science and Technology of China, Chengdu, China","institution_ids":["https://openalex.org/I150229711"]}]}],"institutions":[],"countries_distinct_count":3,"institutions_distinct_count":7,"corresponding_author_ids":["https://openalex.org/A5073181706"],"corresponding_institution_ids":["https://openalex.org/I150229711"],"apc_list":null,"apc_paid":null,"fwci":2.9574,"has_fulltext":false,"cited_by_count":17,"citation_normalized_percentile":{"value":0.92914407,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":98,"max":99},"biblio":{"volume":"11","issue":"6","first_page":"10992","last_page":"11007"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10237","display_name":"Cryptography and Data Security","score":0.9995999932289124,"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":0.9995999932289124,"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/T10270","display_name":"Blockchain Technology Applications and Security","score":0.9994999766349792,"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/T10764","display_name":"Privacy-Preserving Technologies in Data","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"}}],"keywords":[{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.7909858822822571},{"id":"https://openalex.org/keywords/access-control","display_name":"Access control","score":0.7138410806655884},{"id":"https://openalex.org/keywords/security-token","display_name":"Security token","score":0.5836944580078125},{"id":"https://openalex.org/keywords/ciphertext","display_name":"Ciphertext","score":0.5828989744186401},{"id":"https://openalex.org/keywords/data-access","display_name":"Data access","score":0.5805850028991699},{"id":"https://openalex.org/keywords/encryption","display_name":"Encryption","score":0.5643545389175415},{"id":"https://openalex.org/keywords/permission","display_name":"Permission","score":0.5443219542503357},{"id":"https://openalex.org/keywords/computer-network","display_name":"Computer network","score":0.4447602331638336},{"id":"https://openalex.org/keywords/computer-security","display_name":"Computer security","score":0.4357563853263855},{"id":"https://openalex.org/keywords/database","display_name":"Database","score":0.22083139419555664}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.7909858822822571},{"id":"https://openalex.org/C527821871","wikidata":"https://www.wikidata.org/wiki/Q228502","display_name":"Access control","level":2,"score":0.7138410806655884},{"id":"https://openalex.org/C48145219","wikidata":"https://www.wikidata.org/wiki/Q1335365","display_name":"Security token","level":2,"score":0.5836944580078125},{"id":"https://openalex.org/C93974786","wikidata":"https://www.wikidata.org/wiki/Q1589480","display_name":"Ciphertext","level":3,"score":0.5828989744186401},{"id":"https://openalex.org/C47487241","wikidata":"https://www.wikidata.org/wiki/Q5227230","display_name":"Data access","level":2,"score":0.5805850028991699},{"id":"https://openalex.org/C148730421","wikidata":"https://www.wikidata.org/wiki/Q141090","display_name":"Encryption","level":2,"score":0.5643545389175415},{"id":"https://openalex.org/C2779089604","wikidata":"https://www.wikidata.org/wiki/Q7169333","display_name":"Permission","level":2,"score":0.5443219542503357},{"id":"https://openalex.org/C31258907","wikidata":"https://www.wikidata.org/wiki/Q1301371","display_name":"Computer network","level":1,"score":0.4447602331638336},{"id":"https://openalex.org/C38652104","wikidata":"https://www.wikidata.org/wiki/Q3510521","display_name":"Computer security","level":1,"score":0.4357563853263855},{"id":"https://openalex.org/C77088390","wikidata":"https://www.wikidata.org/wiki/Q8513","display_name":"Database","level":1,"score":0.22083139419555664},{"id":"https://openalex.org/C17744445","wikidata":"https://www.wikidata.org/wiki/Q36442","display_name":"Political science","level":0,"score":0.0},{"id":"https://openalex.org/C199539241","wikidata":"https://www.wikidata.org/wiki/Q7748","display_name":"Law","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/jiot.2023.3328382","is_oa":false,"landing_page_url":"https://doi.org/10.1109/jiot.2023.3328382","pdf_url":null,"source":{"id":"https://openalex.org/S2480266640","display_name":"IEEE Internet of Things Journal","issn_l":"2327-4662","issn":["2327-4662","2372-2541"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319808","host_organization_name":"Institute of Electrical and Electronics Engineers","host_organization_lineage":["https://openalex.org/P4310319808"],"host_organization_lineage_names":["Institute of Electrical and Electronics Engineers"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE Internet of Things Journal","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[{"id":"https://openalex.org/G2227486999","display_name":null,"funder_award_id":"61872059","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G7568062542","display_name":null,"funder_award_id":"62002047","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"}],"funders":[{"id":"https://openalex.org/F4320321001","display_name":"National Natural Science Foundation of China","ror":"https://ror.org/01h0zpd94"}],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":48,"referenced_works":["https://openalex.org/W1498316612","https://openalex.org/W1510795740","https://openalex.org/W2056634932","https://openalex.org/W2095708839","https://openalex.org/W2108072891","https://openalex.org/W2138001464","https://openalex.org/W2230451675","https://openalex.org/W2522448907","https://openalex.org/W2783032667","https://openalex.org/W2789441909","https://openalex.org/W2791935104","https://openalex.org/W2796994201","https://openalex.org/W2808669017","https://openalex.org/W2808881604","https://openalex.org/W2845081339","https://openalex.org/W2919839278","https://openalex.org/W2924695220","https://openalex.org/W2949652322","https://openalex.org/W2962766183","https://openalex.org/W2969910737","https://openalex.org/W2980024610","https://openalex.org/W2982300697","https://openalex.org/W2990181228","https://openalex.org/W2998416486","https://openalex.org/W3003176594","https://openalex.org/W3006554290","https://openalex.org/W3010457411","https://openalex.org/W3023514294","https://openalex.org/W3082555471","https://openalex.org/W3089122437","https://openalex.org/W3095251140","https://openalex.org/W3116637734","https://openalex.org/W3120672188","https://openalex.org/W3127239249","https://openalex.org/W3129282671","https://openalex.org/W3131804642","https://openalex.org/W3152142677","https://openalex.org/W3162648243","https://openalex.org/W3163231210","https://openalex.org/W3194588796","https://openalex.org/W3202964153","https://openalex.org/W4205946715","https://openalex.org/W4206331936","https://openalex.org/W4214696809","https://openalex.org/W4248175462","https://openalex.org/W4285104895","https://openalex.org/W6781403382","https://openalex.org/W6782097883"],"related_works":["https://openalex.org/W2392916544","https://openalex.org/W2124367090","https://openalex.org/W1992436224","https://openalex.org/W2386396757","https://openalex.org/W1495119096","https://openalex.org/W2284242097","https://openalex.org/W2277948094","https://openalex.org/W2086058948","https://openalex.org/W2546066963","https://openalex.org/W2357522001"],"abstract_inverted_index":{"It":[0],"is":[1,47,101,165],"of":[2,13,78,83,122,138,144,150,159,162,204],"the":[3,29,55,116,120,128,131,135,141,148,151,157,163],"utmost":[4],"importance":[5],"to":[6,73,103],"achieve":[7,176],"flexible":[8],"and":[9,31,42,68,92,113,134,183,186,207],"fine-grained":[10],"access":[11,44,76,90,93,105,129,132,136],"control":[12,45,77],"electronic":[14],"health":[15],"records":[16],"(EHR)":[17],"in":[18,52,81,202],"smart":[19],"elderly":[20,30,117,164],"healthcare":[21,26],"(SEH)":[22,155],"for":[23,28,49,110],"providing":[24],"high-quality":[25],"services":[27],"protecting":[32],"their":[33],"privacy":[34,158],"simultaneously.":[35],"In":[36,54],"this":[37],"paper,":[38],"a":[39,96],"flexible,":[40],"fine-grained,":[41],"elderly-centric":[43],"scheme":[46,174,199],"presented":[48],"EHR":[50,79,126,160,177],"data":[51,80,84,87,139,145,161,189],"SEH.":[53],"proposed":[56],"scheme,":[57],"Ciphertext":[58],"Policy":[59],"Attribute":[60],"Based":[61],"Encryption":[62],"(CP-ABE),":[63],"permission":[64],"token,":[65],"dual-key":[66],"regression,":[67],"blockchain":[69],"techniques":[70],"are":[71],"leveraged":[72],"realize":[74],"multi-dimensional":[75],"terms":[82,203],"generation":[85,146],"time,":[86,133],"user":[88],"properties,":[89],"times,":[91],"period.":[94],"Moreover,":[95],"novel":[97],"token":[98,184],"segmentation":[99],"algorithm":[100],"designed":[102],"transfer":[104],"rights":[106],"between":[107],"doctors":[108],"efficiently":[109],"multi-party":[111],"diagnosis":[112],"treatment.":[114],"Since":[115],"can":[118,175],"define":[119],"attributes":[121],"users":[123],"accessing":[124],"his/her":[125],"data,":[127],"number,":[130],"range":[137],"from":[140],"time":[142,205],"dimension":[143],"with":[147],"cooperation":[149],"Smart":[152],"Elderly":[153],"Healthcare":[154],"institution,":[156],"well":[166,201],"protected.":[167],"The":[168,193],"security":[169],"analysis":[170],"demonstrates":[171],"that":[172,197],"our":[173,198],"ciphertext":[178],"indistinguishability":[179],"under":[180,188],"chosen-plaintext":[181],"attacks":[182],"unlinkability":[185],"unforgeability":[187],"users\u2019":[190],"collusion":[191],"attacks.":[192],"experimental":[194],"results":[195],"show":[196],"performs":[200],"cost":[206],"computational":[208],"overhead.":[209]},"counts_by_year":[{"year":2025,"cited_by_count":8},{"year":2024,"cited_by_count":9}],"updated_date":"2026-03-27T05:58:40.876381","created_date":"2025-10-10T00:00:00"}