{"id":"https://openalex.org/W2006941589","doi":"https://doi.org/10.1049/el:19931400","title":"Modified Chang-Hwang-Wu access control scheme","display_name":"Modified Chang-Hwang-Wu access control scheme","publication_year":1993,"publication_date":"1993-11-25","ids":{"openalex":"https://openalex.org/W2006941589","doi":"https://doi.org/10.1049/el:19931400","mag":"2006941589"},"language":"en","primary_location":{"id":"doi:10.1049/el:19931400","doi":"https://doi.org/10.1049/el:19931400","is_oa":false,"landing_page_url":"https://doi.org/10.1049/el:19931400","pdf_url":null,"source":{"id":"https://openalex.org/S149016011","display_name":"Electronics Letters","issn_l":"0013-5194","issn":["0013-5194","1350-911X"],"is_oa":false,"is_in_doaj":true,"is_core":true,"listed_in":["cwts-core","doaj","dongbi-d","jufo-1","norway-1","oarl","poland-70","russia-white-list-2","vabb-shw"],"host_organization":"https://openalex.org/P4310311714","host_organization_name":"Institution of Engineering and Technology","host_organization_lineage":["https://openalex.org/P4310311714"],"host_organization_lineage_names":["Institution of Engineering and Technology"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Electronics Letters","raw_type":"journal-article"},"volume":null,"type":"article","is_traditional":true,"indexed_in":["crossref","doaj"],"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/A5037292711","display_name":"Min\u2010Shiang Hwang","orcid":"https://orcid.org/0000-0001-5502-8033","observed_orcids":["https://orcid.org/0000-0001-5502-8033"]},"institutions":[{"id":"https://openalex.org/I148366613","display_name":"National Yang Ming Chiao Tung University","ror":"https://ror.org/00se2k293","country_code":"TW","type":"education","lineage":["https://openalex.org/I148366613"]}],"countries":["TW"],"is_corresponding":false,"raw_author_name":"M.-S. Hwang","raw_affiliation_strings":["Department of Computer and Information Science, National Chiao Tung University, Hsinchu, WTaiwan 300, Republic of China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Computer and Information Science, National Chiao Tung University, Hsinchu, WTaiwan 300, Republic of China","institution_ids":["https://openalex.org/I148366613"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5111863213","display_name":"Wen-Kuang Yang","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I148366613","display_name":"National Yang Ming Chiao Tung University","ror":"https://ror.org/00se2k293","country_code":"TW","type":"education","lineage":["https://openalex.org/I148366613"]}],"countries":["TW"],"is_corresponding":false,"raw_author_name":"W.-P. Yang","raw_affiliation_strings":["Department of Computer and Information Science, National Chiao Tung University, Hsinchu, WTaiwan 300, Republic of China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Computer and Information Science, National Chiao Tung University, Hsinchu, WTaiwan 300, Republic of China","institution_ids":["https://openalex.org/I148366613"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5101482344","display_name":"Chia\u2010Chen Chang","orcid":"https://orcid.org/0000-0001-9853-8949","observed_orcids":["https://orcid.org/0000-0001-9853-8949"]},"institutions":[{"id":"https://openalex.org/I148099254","display_name":"National Chung Cheng University","ror":"https://ror.org/0028v3876","country_code":"TW","type":"education","lineage":["https://openalex.org/I148099254"]}],"countries":["TW"],"is_corresponding":false,"raw_author_name":"C.-C. Chang","raw_affiliation_strings":["Institute of Computer Science and Information Engineering, National Chung Cheng University, Chiayi, WTaiwan 621, Republic of China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Institute of Computer Science and Information Engineering, National Chung Cheng University, Chiayi, WTaiwan 621, Republic of China","institution_ids":["https://openalex.org/I148099254"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":2,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":{"value":2590,"currency":"USD","value_usd":2590},"apc_paid":null,"fwci":0.0,"has_fulltext":false,"cited_by_count":28,"citation_normalized_percentile":{"value":0.0,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":88,"max":96},"biblio":{"volume":"29","issue":"24","first_page":"2095","last_page":"2096"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10237","display_name":"Cryptography and Data Security","score":0.7919999957084656,"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"}},"topics":[{"id":"https://openalex.org/T10237","display_name":"Cryptography and Data Security","score":0.7919999957084656,"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/T11504","display_name":"Advanced Authentication Protocols Security","score":0.14749999344348907,"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/T10927","display_name":"Access Control and Trust","score":0.026499999687075615,"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"}}],"keywords":[{"id":"https://openalex.org/keywords/key-pre-distribution","display_name":"key pre-distribution","score":0.42899999022483826},{"id":"https://openalex.org/keywords/secure-access-control","display_name":"secure access control","score":0.6079999804496765},{"id":"https://openalex.org/keywords/key-hierarchy","display_name":"key hierarchy","score":0.3479999899864197}],"concepts":[{"id":"https://openalex.org/C77618280","wikidata":"https://www.wikidata.org/wiki/Q1155772","display_name":"Scheme (mathematics)","level":2,"score":0.770927906036377},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.5825552940368652},{"id":"https://openalex.org/C527821871","wikidata":"https://www.wikidata.org/wiki/Q228502","display_name":"Access control","level":2,"score":0.5747852325439453},{"id":"https://openalex.org/C26517878","wikidata":"https://www.wikidata.org/wiki/Q228039","display_name":"Key (lock)","level":2,"score":0.4963439106941223},{"id":"https://openalex.org/C31258907","wikidata":"https://www.wikidata.org/wiki/Q1301371","display_name":"Computer network","level":1,"score":0.42849215865135193},{"id":"https://openalex.org/C38652104","wikidata":"https://www.wikidata.org/wiki/Q3510521","display_name":"Computer security","level":1,"score":0.3766981363296509},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.2704795002937317},{"id":"https://openalex.org/C134306372","wikidata":"https://www.wikidata.org/wiki/Q7754","display_name":"Mathematical analysis","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1049/el:19931400","doi":"https://doi.org/10.1049/el:19931400","is_oa":false,"landing_page_url":"https://doi.org/10.1049/el:19931400","pdf_url":null,"source":{"id":"https://openalex.org/S149016011","display_name":"Electronics Letters","issn_l":"0013-5194","issn":["0013-5194","1350-911X"],"is_oa":false,"is_in_doaj":true,"is_core":true,"listed_in":["cwts-core","doaj","dongbi-d","jufo-1","norway-1","oarl","poland-70","russia-white-list-2","vabb-shw"],"host_organization":"https://openalex.org/P4310311714","host_organization_name":"Institution of Engineering and Technology","host_organization_lineage":["https://openalex.org/P4310311714"],"host_organization_lineage_names":["Institution of Engineering and Technology"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Electronics Letters","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[],"study_designs":[],"awards":[],"funders":[{"id":"https://openalex.org/F4320321040","display_name":"National Science Council","ror":"https://ror.org/02kv4zf79"}],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":5,"referenced_works":["https://openalex.org/W1972780631","https://openalex.org/W1981663184","https://openalex.org/W2009287270","https://openalex.org/W2148705493","https://openalex.org/W4297975705"],"related_works":["https://openalex.org/W2156705011","https://openalex.org/W2005555197","https://openalex.org/W2380673222","https://openalex.org/W2088647031","https://openalex.org/W2020515716","https://openalex.org/W2371642266","https://openalex.org/W2134545836","https://openalex.org/W1985145636","https://openalex.org/W2081632095","https://openalex.org/W64162000"],"abstract_inverted_index":{"It":[0],"is":[1],"found":[2],"that":[3],"some":[4,26],"security":[5,38],"classes":[6],"in":[7,25],"the":[8,18,32,37],"Chang-Hwang-Wu":[9],"access":[10],"control":[11],"scheme":[12,34],"can":[13],"be":[14],"combined":[15],"to":[16,31,35],"derive":[17],"secret":[19],"key":[20],"of":[21],"their":[22],"immediate":[23],"ancestor":[24],"cases.":[27],"Some":[28],"slight":[29],"modifications":[30],"proposed":[33],"enhance":[36],"levels":[39],"are":[40],"also":[41],"given.":[42]},"counts_by_year":[{"year":2026,"cited_by_count":1},{"year":2024,"cited_by_count":2},{"year":2023,"cited_by_count":1},{"year":2022,"cited_by_count":3},{"year":2021,"cited_by_count":3},{"year":2013,"cited_by_count":1}],"updated_date":"2026-10-16T09:59:22.235173","created_date":"2016-06-24T00:00:00"}