{"id":"https://openalex.org/W1516033050","doi":"https://doi.org/10.1007/978-3-540-73489-5_2","title":"Public Key Encryption with Conjunctive Keyword Search and Its Extension to a Multi-user System","display_name":"Public Key Encryption with Conjunctive Keyword Search and Its Extension to a Multi-user System","publication_year":2007,"publication_date":"2007-09-11","ids":{"openalex":"https://openalex.org/W1516033050","doi":"https://doi.org/10.1007/978-3-540-73489-5_2","mag":"1516033050"},"language":"en","primary_location":{"id":"doi:10.1007/978-3-540-73489-5_2","is_oa":false,"landing_page_url":"https://doi.org/10.1007/978-3-540-73489-5_2","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/A5111425788","display_name":"Yong Ho Hwang","orcid":null},"institutions":[{"id":"https://openalex.org/I145311948","display_name":"Johns Hopkins University","ror":"https://ror.org/00za53h95","country_code":"US","type":"education","lineage":["https://openalex.org/I145311948"]}],"countries":["US"],"is_corresponding":true,"raw_author_name":"Yong Ho Hwang","raw_affiliation_strings":["Department of Computer Science, Johns Hopkins University, Baltimore, MD, USA","Department of Computer Science, Johns Hopkins University, Baltimore, MD;"],"affiliations":[{"raw_affiliation_string":"Department of Computer Science, Johns Hopkins University, Baltimore, MD, USA","institution_ids":["https://openalex.org/I145311948"]},{"raw_affiliation_string":"Department of Computer Science, Johns Hopkins University, Baltimore, MD;","institution_ids":["https://openalex.org/I145311948"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5016291668","display_name":"Pil Joong Lee","orcid":null},"institutions":[{"id":"https://openalex.org/I123900574","display_name":"Pohang University of Science and Technology","ror":"https://ror.org/04xysgw12","country_code":"KR","type":"education","lineage":["https://openalex.org/I123900574"]}],"countries":["KR"],"is_corresponding":false,"raw_author_name":"Pil Joong Lee","raw_affiliation_strings":["Department of Electronic and Electrical Engineering, POSTECH, Pohang, Korea","Department of Electronic and Electrical Engineering, POSTECH, Pohang, Korea#TAB#"],"affiliations":[{"raw_affiliation_string":"Department of Electronic and Electrical Engineering, POSTECH, Pohang, Korea","institution_ids":["https://openalex.org/I123900574"]},{"raw_affiliation_string":"Department of Electronic and Electrical Engineering, POSTECH, Pohang, Korea#TAB#","institution_ids":["https://openalex.org/I123900574"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":2,"corresponding_author_ids":["https://openalex.org/A5111425788"],"corresponding_institution_ids":["https://openalex.org/I145311948"],"apc_list":{"value":5000,"currency":"EUR","value_usd":5392},"apc_paid":null,"fwci":3.1977,"has_fulltext":false,"cited_by_count":408,"citation_normalized_percentile":{"value":0.92914006,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":98,"max":100},"biblio":{"volume":null,"issue":null,"first_page":"2","last_page":"22"},"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":0.9952999949455261,"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/T10951","display_name":"Cryptographic Implementations and Security","score":0.9794999957084656,"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":0.8133646249771118},{"id":"https://openalex.org/keywords/random-oracle","display_name":"Random oracle","score":0.7128982543945312},{"id":"https://openalex.org/keywords/encryption","display_name":"Encryption","score":0.6983181834220886},{"id":"https://openalex.org/keywords/key","display_name":"Key (lock)","score":0.6091232299804688},{"id":"https://openalex.org/keywords/overhead","display_name":"Overhead (engineering)","score":0.5756893157958984},{"id":"https://openalex.org/keywords/ciphertext","display_name":"Ciphertext","score":0.5426725149154663},{"id":"https://openalex.org/keywords/public-key-cryptography","display_name":"Public-key cryptography","score":0.5353795289993286},{"id":"https://openalex.org/keywords/scheme","display_name":"Scheme (mathematics)","score":0.5013747215270996},{"id":"https://openalex.org/keywords/extension","display_name":"Extension (predicate logic)","score":0.4991888999938965},{"id":"https://openalex.org/keywords/theoretical-computer-science","display_name":"Theoretical computer science","score":0.47468993067741394},{"id":"https://openalex.org/keywords/oracle","display_name":"Oracle","score":0.4361193776130676},{"id":"https://openalex.org/keywords/computer-security","display_name":"Computer security","score":0.27821236848831177},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.13071542978286743}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.8133646249771118},{"id":"https://openalex.org/C94284585","wikidata":"https://www.wikidata.org/wiki/Q228184","display_name":"Random oracle","level":4,"score":0.7128982543945312},{"id":"https://openalex.org/C148730421","wikidata":"https://www.wikidata.org/wiki/Q141090","display_name":"Encryption","level":2,"score":0.6983181834220886},{"id":"https://openalex.org/C26517878","wikidata":"https://www.wikidata.org/wiki/Q228039","display_name":"Key (lock)","level":2,"score":0.6091232299804688},{"id":"https://openalex.org/C2779960059","wikidata":"https://www.wikidata.org/wiki/Q7113681","display_name":"Overhead (engineering)","level":2,"score":0.5756893157958984},{"id":"https://openalex.org/C93974786","wikidata":"https://www.wikidata.org/wiki/Q1589480","display_name":"Ciphertext","level":3,"score":0.5426725149154663},{"id":"https://openalex.org/C203062551","wikidata":"https://www.wikidata.org/wiki/Q201339","display_name":"Public-key cryptography","level":3,"score":0.5353795289993286},{"id":"https://openalex.org/C77618280","wikidata":"https://www.wikidata.org/wiki/Q1155772","display_name":"Scheme (mathematics)","level":2,"score":0.5013747215270996},{"id":"https://openalex.org/C2778029271","wikidata":"https://www.wikidata.org/wiki/Q5421931","display_name":"Extension (predicate logic)","level":2,"score":0.4991888999938965},{"id":"https://openalex.org/C80444323","wikidata":"https://www.wikidata.org/wiki/Q2878974","display_name":"Theoretical computer science","level":1,"score":0.47468993067741394},{"id":"https://openalex.org/C55166926","wikidata":"https://www.wikidata.org/wiki/Q2892946","display_name":"Oracle","level":2,"score":0.4361193776130676},{"id":"https://openalex.org/C38652104","wikidata":"https://www.wikidata.org/wiki/Q3510521","display_name":"Computer security","level":1,"score":0.27821236848831177},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.13071542978286743},{"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/C115903868","wikidata":"https://www.wikidata.org/wiki/Q80993","display_name":"Software engineering","level":1,"score":0.0},{"id":"https://openalex.org/C199360897","wikidata":"https://www.wikidata.org/wiki/Q9143","display_name":"Programming language","level":1,"score":0.0},{"id":"https://openalex.org/C111919701","wikidata":"https://www.wikidata.org/wiki/Q9135","display_name":"Operating system","level":1,"score":0.0}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.1007/978-3-540-73489-5_2","is_oa":false,"landing_page_url":"https://doi.org/10.1007/978-3-540-73489-5_2","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"},{"id":"pmh:oai:oasis.postech.ac.kr:2014.oak/31409","is_oa":false,"landing_page_url":"https://oasis.postech.ac.kr/handle/2014.oak/31409","pdf_url":null,"source":{"id":"https://openalex.org/S4306401965","display_name":"Open Access System for Information Sharing (Pohang University of Science and Technology)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I123900574","host_organization_name":"Pohang University of Science and Technology","host_organization_lineage":["https://openalex.org/I123900574"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"","raw_type":"Article"}],"best_oa_location":null,"sustainable_development_goals":[{"id":"https://metadata.un.org/sdg/16","display_name":"Peace, Justice and strong institutions","score":0.7400000095367432}],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":45,"referenced_works":["https://openalex.org/W8287904","https://openalex.org/W46786753","https://openalex.org/W1495266644","https://openalex.org/W1507575253","https://openalex.org/W1511374591","https://openalex.org/W1512194687","https://openalex.org/W1574314127","https://openalex.org/W1580750219","https://openalex.org/W1589421353","https://openalex.org/W1589843374","https://openalex.org/W1590405063","https://openalex.org/W1637905077","https://openalex.org/W1677827171","https://openalex.org/W1787766190","https://openalex.org/W1798609567","https://openalex.org/W1836365731","https://openalex.org/W1838876034","https://openalex.org/W1868922675","https://openalex.org/W1901278359","https://openalex.org/W1905774212","https://openalex.org/W1921672120","https://openalex.org/W2014239329","https://openalex.org/W2086042811","https://openalex.org/W2108834246","https://openalex.org/W2120976781","https://openalex.org/W2129359810","https://openalex.org/W2131043660","https://openalex.org/W2141420453","https://openalex.org/W2146828512","https://openalex.org/W2147929033","https://openalex.org/W2152924492","https://openalex.org/W2161214567","https://openalex.org/W2172174332","https://openalex.org/W2242157338","https://openalex.org/W2286477783","https://openalex.org/W2477011922","https://openalex.org/W2483988241","https://openalex.org/W2484588551","https://openalex.org/W2490195800","https://openalex.org/W2497843319","https://openalex.org/W2506201965","https://openalex.org/W2561675875","https://openalex.org/W2619633776","https://openalex.org/W2770583616","https://openalex.org/W4285719527"],"related_works":["https://openalex.org/W2383065991","https://openalex.org/W1519370602","https://openalex.org/W1569215146","https://openalex.org/W4313172668","https://openalex.org/W1554299772","https://openalex.org/W2024757849","https://openalex.org/W2165448723","https://openalex.org/W2063764735","https://openalex.org/W2369329904","https://openalex.org/W2161209604"],"abstract_inverted_index":null,"counts_by_year":[{"year":2025,"cited_by_count":7},{"year":2024,"cited_by_count":10},{"year":2023,"cited_by_count":6},{"year":2022,"cited_by_count":17},{"year":2021,"cited_by_count":19},{"year":2020,"cited_by_count":27},{"year":2019,"cited_by_count":36},{"year":2018,"cited_by_count":32},{"year":2017,"cited_by_count":43},{"year":2016,"cited_by_count":42},{"year":2015,"cited_by_count":44},{"year":2014,"cited_by_count":30},{"year":2013,"cited_by_count":39},{"year":2012,"cited_by_count":20}],"updated_date":"2026-04-04T16:13:02.066488","created_date":"2025-10-10T00:00:00"}