{"id":"https://openalex.org/W1505866941","doi":"https://doi.org/10.1007/11593447_6","title":"Graph-Decomposition-Based Frameworks for Subset-Cover Broadcast Encryption and Efficient Instantiations","display_name":"Graph-Decomposition-Based Frameworks for Subset-Cover Broadcast Encryption and Efficient Instantiations","publication_year":2005,"publication_date":"2005-01-01","ids":{"openalex":"https://openalex.org/W1505866941","doi":"https://doi.org/10.1007/11593447_6","mag":"1505866941"},"language":"en","primary_location":{"id":"doi:10.1007/11593447_6","is_oa":false,"landing_page_url":"https://doi.org/10.1007/11593447_6","pdf_url":null,"source":{"id":"https://openalex.org/S106296714","display_name":"Lecture notes in computer science","issn_l":"0302-9743","issn":["0302-9743","1611-3349"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319900","host_organization_name":"Springer Science+Business Media","host_organization_lineage":["https://openalex.org/P4310319900","https://openalex.org/P4310319965"],"host_organization_lineage_names":["Springer Science+Business Media","Springer Nature"],"type":"book series"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Lecture Notes in Computer Science","raw_type":"book-chapter"},"type":"book-chapter","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/A5062335887","display_name":"Nuttapong Attrapadung","orcid":"https://orcid.org/0000-0003-4116-1751"},"institutions":[{"id":"https://openalex.org/I161296585","display_name":"Tokyo University of Science","ror":"https://ror.org/05sj3n476","country_code":"JP","type":"education","lineage":["https://openalex.org/I161296585"]},{"id":"https://openalex.org/I74801974","display_name":"The University of Tokyo","ror":"https://ror.org/057zh3y96","country_code":"JP","type":"education","lineage":["https://openalex.org/I74801974"]}],"countries":["JP"],"is_corresponding":true,"raw_author_name":"Nuttapong Attrapadung","raw_affiliation_strings":["Imai Laboratory, Institute of Industrial Science, University of Tokyo, 4-6-1 Komaba, Meguro-ku, Tokyo, 153-8505, Japan"],"affiliations":[{"raw_affiliation_string":"Imai Laboratory, Institute of Industrial Science, University of Tokyo, 4-6-1 Komaba, Meguro-ku, Tokyo, 153-8505, Japan","institution_ids":["https://openalex.org/I74801974","https://openalex.org/I161296585"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5102059792","display_name":"Hideki Imai","orcid":null},"institutions":[{"id":"https://openalex.org/I74801974","display_name":"The University of Tokyo","ror":"https://ror.org/057zh3y96","country_code":"JP","type":"education","lineage":["https://openalex.org/I74801974"]},{"id":"https://openalex.org/I161296585","display_name":"Tokyo University of Science","ror":"https://ror.org/05sj3n476","country_code":"JP","type":"education","lineage":["https://openalex.org/I161296585"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Hideki Imai","raw_affiliation_strings":["Imai Laboratory, Institute of Industrial Science, University of Tokyo, 4-6-1 Komaba, Meguro-ku, Tokyo, 153-8505, Japan"],"affiliations":[{"raw_affiliation_string":"Imai Laboratory, Institute of Industrial Science, University of Tokyo, 4-6-1 Komaba, Meguro-ku, Tokyo, 153-8505, Japan","institution_ids":["https://openalex.org/I74801974","https://openalex.org/I161296585"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":2,"corresponding_author_ids":["https://openalex.org/A5062335887"],"corresponding_institution_ids":["https://openalex.org/I161296585","https://openalex.org/I74801974"],"apc_list":{"value":5000,"currency":"EUR","value_usd":5392},"apc_paid":null,"fwci":1.4958,"has_fulltext":false,"cited_by_count":17,"citation_normalized_percentile":{"value":0.82441133,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":96},"biblio":{"volume":null,"issue":null,"first_page":"100","last_page":"120"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10237","display_name":"Cryptography and Data Security","score":1.0,"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":1.0,"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/T10720","display_name":"Complexity and Algorithms in Graphs","score":0.9984999895095825,"subfield":{"id":"https://openalex.org/subfields/1703","display_name":"Computational Theory and Mathematics"},"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/T11130","display_name":"Coding theory and cryptography","score":0.9975000023841858,"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":0.7344475984573364},{"id":"https://openalex.org/keywords/broadcast-encryption","display_name":"Broadcast encryption","score":0.6724398732185364},{"id":"https://openalex.org/keywords/ciphertext","display_name":"Ciphertext","score":0.6625615358352661},{"id":"https://openalex.org/keywords/theoretical-computer-science","display_name":"Theoretical computer science","score":0.5439306497573853},{"id":"https://openalex.org/keywords/key","display_name":"Key (lock)","score":0.4915216863155365},{"id":"https://openalex.org/keywords/cover","display_name":"Cover (algebra)","score":0.48833200335502625},{"id":"https://openalex.org/keywords/scheme","display_name":"Scheme (mathematics)","score":0.47465425729751587},{"id":"https://openalex.org/keywords/encryption","display_name":"Encryption","score":0.422920286655426},{"id":"https://openalex.org/keywords/public-key-cryptography","display_name":"Public-key cryptography","score":0.2870410680770874},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.24642443656921387},{"id":"https://openalex.org/keywords/computer-network","display_name":"Computer network","score":0.10091876983642578}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.7344475984573364},{"id":"https://openalex.org/C2778281673","wikidata":"https://www.wikidata.org/wiki/Q4972106","display_name":"Broadcast encryption","level":4,"score":0.6724398732185364},{"id":"https://openalex.org/C93974786","wikidata":"https://www.wikidata.org/wiki/Q1589480","display_name":"Ciphertext","level":3,"score":0.6625615358352661},{"id":"https://openalex.org/C80444323","wikidata":"https://www.wikidata.org/wiki/Q2878974","display_name":"Theoretical computer science","level":1,"score":0.5439306497573853},{"id":"https://openalex.org/C26517878","wikidata":"https://www.wikidata.org/wiki/Q228039","display_name":"Key (lock)","level":2,"score":0.4915216863155365},{"id":"https://openalex.org/C2780428219","wikidata":"https://www.wikidata.org/wiki/Q16952335","display_name":"Cover (algebra)","level":2,"score":0.48833200335502625},{"id":"https://openalex.org/C77618280","wikidata":"https://www.wikidata.org/wiki/Q1155772","display_name":"Scheme (mathematics)","level":2,"score":0.47465425729751587},{"id":"https://openalex.org/C148730421","wikidata":"https://www.wikidata.org/wiki/Q141090","display_name":"Encryption","level":2,"score":0.422920286655426},{"id":"https://openalex.org/C203062551","wikidata":"https://www.wikidata.org/wiki/Q201339","display_name":"Public-key cryptography","level":3,"score":0.2870410680770874},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.24642443656921387},{"id":"https://openalex.org/C31258907","wikidata":"https://www.wikidata.org/wiki/Q1301371","display_name":"Computer network","level":1,"score":0.10091876983642578},{"id":"https://openalex.org/C78519656","wikidata":"https://www.wikidata.org/wiki/Q101333","display_name":"Mechanical engineering","level":1,"score":0.0},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.0},{"id":"https://openalex.org/C38652104","wikidata":"https://www.wikidata.org/wiki/Q3510521","display_name":"Computer security","level":1,"score":0.0},{"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:10.1007/11593447_6","is_oa":false,"landing_page_url":"https://doi.org/10.1007/11593447_6","pdf_url":null,"source":{"id":"https://openalex.org/S106296714","display_name":"Lecture notes in computer science","issn_l":"0302-9743","issn":["0302-9743","1611-3349"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319900","host_organization_name":"Springer Science+Business Media","host_organization_lineage":["https://openalex.org/P4310319900","https://openalex.org/P4310319965"],"host_organization_lineage_names":["Springer Science+Business Media","Springer Nature"],"type":"book series"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Lecture Notes in Computer Science","raw_type":"book-chapter"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":24,"referenced_works":["https://openalex.org/W1485287359","https://openalex.org/W1499665530","https://openalex.org/W1508689723","https://openalex.org/W1522268755","https://openalex.org/W1551235656","https://openalex.org/W1571147132","https://openalex.org/W1587157897","https://openalex.org/W1587391206","https://openalex.org/W1607588004","https://openalex.org/W1784881995","https://openalex.org/W1905774212","https://openalex.org/W1951707894","https://openalex.org/W1978520135","https://openalex.org/W2031338211","https://openalex.org/W2035274144","https://openalex.org/W2120265856","https://openalex.org/W2168571148","https://openalex.org/W2168838603","https://openalex.org/W2397835572","https://openalex.org/W2477674116","https://openalex.org/W2798588639","https://openalex.org/W2914756988","https://openalex.org/W4238634196","https://openalex.org/W4285719527"],"related_works":["https://openalex.org/W2187385430","https://openalex.org/W4238724643","https://openalex.org/W2396810286","https://openalex.org/W2026429377","https://openalex.org/W830185726","https://openalex.org/W2623923355","https://openalex.org/W2968981520","https://openalex.org/W2407999481","https://openalex.org/W2293437809","https://openalex.org/W2899975442"],"abstract_inverted_index":null,"counts_by_year":[{"year":2015,"cited_by_count":1},{"year":2013,"cited_by_count":1},{"year":2012,"cited_by_count":2}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}