{"id":"https://openalex.org/W4248214269","doi":"https://doi.org/10.1504/ijact.2017.10007292","title":"IBE and function-private IBE under linear assumptions with shorter ciphertexts and private keys, and extensions","display_name":"IBE and function-private IBE under linear assumptions with shorter ciphertexts and private keys, and extensions","publication_year":2017,"publication_date":"2017-01-01","ids":{"openalex":"https://openalex.org/W4248214269","doi":"https://doi.org/10.1504/ijact.2017.10007292"},"language":"en","primary_location":{"id":"doi:10.1504/ijact.2017.10007292","is_oa":false,"landing_page_url":"https://doi.org/10.1504/ijact.2017.10007292","pdf_url":null,"source":{"id":"https://openalex.org/S55392106","display_name":"International Journal of Applied Cryptography","issn_l":"1753-0563","issn":["1753-0563","1753-0571"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310317825","host_organization_name":"Inderscience Publishers","host_organization_lineage":["https://openalex.org/P4310317825"],"host_organization_lineage_names":["Inderscience Publishers"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"International Journal of Applied Cryptography","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/A5110190606","display_name":"Kaoru Kurosawa","orcid":null},"institutions":[{"id":"https://openalex.org/I6178835","display_name":"Ibaraki University","ror":"https://ror.org/00sjd5653","country_code":"JP","type":"education","lineage":["https://openalex.org/I6178835"]},{"id":"https://openalex.org/I65143321","display_name":"Hitachi (Japan)","ror":"https://ror.org/02exqgm79","country_code":"JP","type":"company","lineage":["https://openalex.org/I65143321"]}],"countries":["JP"],"is_corresponding":true,"raw_author_name":"Kaoru Kurosawa","raw_affiliation_strings":["Ibaraki University, 4-12-1 Nakanarusawa, Hitachi, Ibaraki 316-8511, Japan"],"affiliations":[{"raw_affiliation_string":"Ibaraki University, 4-12-1 Nakanarusawa, Hitachi, Ibaraki 316-8511, Japan","institution_ids":["https://openalex.org/I6178835","https://openalex.org/I65143321"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5068171354","display_name":"Le Trieu Phong","orcid":"https://orcid.org/0000-0003-2219-1867"},"institutions":[{"id":"https://openalex.org/I90023481","display_name":"National Institute of Information and Communications Technology","ror":"https://ror.org/016bgq349","country_code":"JP","type":"facility","lineage":["https://openalex.org/I90023481"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Le Trieu Phong","raw_affiliation_strings":["National Institute of Information and Communications Technology (NICT), 4-2-1, Nukui-Kitamachi, Koganei, Tokyo 184-8795, Japan"],"affiliations":[{"raw_affiliation_string":"National Institute of Information and Communications Technology (NICT), 4-2-1, Nukui-Kitamachi, Koganei, Tokyo 184-8795, Japan","institution_ids":["https://openalex.org/I90023481"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":2,"corresponding_author_ids":["https://openalex.org/A5110190606"],"corresponding_institution_ids":["https://openalex.org/I6178835","https://openalex.org/I65143321"],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":false,"cited_by_count":0,"citation_normalized_percentile":{"value":0.36055091,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":"3","issue":"3","first_page":"210","last_page":"210"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10237","display_name":"Cryptography and Data Security","score":0.9994999766349792,"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":0.9994999766349792,"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":0.9372000098228455,"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"}}],"keywords":[{"id":"https://openalex.org/keywords/random-oracle","display_name":"Random oracle","score":0.7892591953277588},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.5827087759971619},{"id":"https://openalex.org/keywords/encryption","display_name":"Encryption","score":0.5536669492721558},{"id":"https://openalex.org/keywords/overhead","display_name":"Overhead (engineering)","score":0.4904327094554901},{"id":"https://openalex.org/keywords/ciphertext","display_name":"Ciphertext","score":0.4596822261810303},{"id":"https://openalex.org/keywords/group","display_name":"Group (periodic table)","score":0.4590301811695099},{"id":"https://openalex.org/keywords/standard-model","display_name":"Standard Model (mathematical formulation)","score":0.4426146149635315},{"id":"https://openalex.org/keywords/public-key-cryptography","display_name":"Public-key cryptography","score":0.43500733375549316},{"id":"https://openalex.org/keywords/theoretical-computer-science","display_name":"Theoretical computer science","score":0.4255000948905945},{"id":"https://openalex.org/keywords/function","display_name":"Function (biology)","score":0.4178566634654999},{"id":"https://openalex.org/keywords/scheme","display_name":"Scheme (mathematics)","score":0.41273564100265503},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.3454456925392151},{"id":"https://openalex.org/keywords/computer-security","display_name":"Computer security","score":0.2205350399017334},{"id":"https://openalex.org/keywords/physics","display_name":"Physics","score":0.06954452395439148},{"id":"https://openalex.org/keywords/operating-system","display_name":"Operating system","score":0.06538298726081848}],"concepts":[{"id":"https://openalex.org/C94284585","wikidata":"https://www.wikidata.org/wiki/Q228184","display_name":"Random oracle","level":4,"score":0.7892591953277588},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.5827087759971619},{"id":"https://openalex.org/C148730421","wikidata":"https://www.wikidata.org/wiki/Q141090","display_name":"Encryption","level":2,"score":0.5536669492721558},{"id":"https://openalex.org/C2779960059","wikidata":"https://www.wikidata.org/wiki/Q7113681","display_name":"Overhead (engineering)","level":2,"score":0.4904327094554901},{"id":"https://openalex.org/C93974786","wikidata":"https://www.wikidata.org/wiki/Q1589480","display_name":"Ciphertext","level":3,"score":0.4596822261810303},{"id":"https://openalex.org/C2781311116","wikidata":"https://www.wikidata.org/wiki/Q83306","display_name":"Group (periodic table)","level":2,"score":0.4590301811695099},{"id":"https://openalex.org/C101454708","wikidata":"https://www.wikidata.org/wiki/Q17106019","display_name":"Standard Model (mathematical formulation)","level":3,"score":0.4426146149635315},{"id":"https://openalex.org/C203062551","wikidata":"https://www.wikidata.org/wiki/Q201339","display_name":"Public-key cryptography","level":3,"score":0.43500733375549316},{"id":"https://openalex.org/C80444323","wikidata":"https://www.wikidata.org/wiki/Q2878974","display_name":"Theoretical computer science","level":1,"score":0.4255000948905945},{"id":"https://openalex.org/C14036430","wikidata":"https://www.wikidata.org/wiki/Q3736076","display_name":"Function (biology)","level":2,"score":0.4178566634654999},{"id":"https://openalex.org/C77618280","wikidata":"https://www.wikidata.org/wiki/Q1155772","display_name":"Scheme (mathematics)","level":2,"score":0.41273564100265503},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.3454456925392151},{"id":"https://openalex.org/C38652104","wikidata":"https://www.wikidata.org/wiki/Q3510521","display_name":"Computer security","level":1,"score":0.2205350399017334},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.06954452395439148},{"id":"https://openalex.org/C111919701","wikidata":"https://www.wikidata.org/wiki/Q9135","display_name":"Operating system","level":1,"score":0.06538298726081848},{"id":"https://openalex.org/C40976572","wikidata":"https://www.wikidata.org/wiki/Q2330873","display_name":"Gauge (firearms)","level":2,"score":0.0},{"id":"https://openalex.org/C95457728","wikidata":"https://www.wikidata.org/wiki/Q309","display_name":"History","level":0,"score":0.0},{"id":"https://openalex.org/C62520636","wikidata":"https://www.wikidata.org/wiki/Q944","display_name":"Quantum mechanics","level":1,"score":0.0},{"id":"https://openalex.org/C78458016","wikidata":"https://www.wikidata.org/wiki/Q840400","display_name":"Evolutionary biology","level":1,"score":0.0},{"id":"https://openalex.org/C166957645","wikidata":"https://www.wikidata.org/wiki/Q23498","display_name":"Archaeology","level":1,"score":0.0},{"id":"https://openalex.org/C86803240","wikidata":"https://www.wikidata.org/wiki/Q420","display_name":"Biology","level":0,"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:10.1504/ijact.2017.10007292","is_oa":false,"landing_page_url":"https://doi.org/10.1504/ijact.2017.10007292","pdf_url":null,"source":{"id":"https://openalex.org/S55392106","display_name":"International Journal of Applied Cryptography","issn_l":"1753-0563","issn":["1753-0563","1753-0571"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310317825","host_organization_name":"Inderscience Publishers","host_organization_lineage":["https://openalex.org/P4310317825"],"host_organization_lineage_names":["Inderscience Publishers"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"International Journal of Applied Cryptography","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[{"score":0.49000000953674316,"display_name":"Partnerships for the goals","id":"https://metadata.un.org/sdg/17"}],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":0,"referenced_works":[],"related_works":["https://openalex.org/W2383065991","https://openalex.org/W1519370602","https://openalex.org/W4313172668","https://openalex.org/W1554299772","https://openalex.org/W1569215146","https://openalex.org/W2165448723","https://openalex.org/W2024757849","https://openalex.org/W2369329904","https://openalex.org/W2063764735","https://openalex.org/W2153381366"],"abstract_inverted_index":{"Many":[0],"identity-based":[1],"encryption":[2,160],"schemes":[3,50,111,166],"under":[4,34,57,85,137],"the":[5,15,26,35,43,58,78,96,114,123,138,144],"k-LIN":[6,36,87],"assumption":[7,37,65],"contain":[8],"2k":[9,39],"+":[10],"1":[11],"group":[12,40],"elements":[13,41],"in":[14,42,76,95,113,147,159],"ciphertext":[16,44],"overhead":[17,45],"and":[18,46,149,157,161,163],"private":[19,47,150],"keys.":[20,48],"In":[21],"this":[22],"paper,":[23],"we":[24,72,91,102],"push":[25],"limit":[27],"further":[28],"by":[29],"constructing":[30],"an":[31],"IBE":[32,136],"scheme":[33,124],"with":[38,53,167],"The":[49],"have":[51],"variants":[52],"shorter":[54],"public":[55,79],"parameters":[56],"k-SCasc":[59],"assumption,":[60],"which":[61],"is":[62],"a":[63],"close":[64],"to":[66,106,122,131,154],"k-LIN.":[67],"Furthermore,":[68],"via":[69],"additional":[70],"refinements,":[71],"also":[73,103],"put":[74],"efforts":[75],"reducing":[77],"parameter":[80],"size":[81,146],"of":[82,125],"our":[83,100],"schemes,":[84,101],"either":[86],"or":[88],"k-SCasc.":[89],"While":[90],"mainly":[92],"consider":[93],"securities":[94],"standard":[97],"model":[98],"for":[99],"show":[104],"how":[105],"make":[107],"relatively":[108],"more":[109,133],"efficient":[110,134],"secure":[112],"random":[115],"oracle":[116],"model.":[117],"Our":[118],"technique":[119],"additionally":[120],"expands":[121],"Boneh":[126],"et":[127],"al.":[128],"(CRYPTO":[129],"2013)":[130],"yield":[132],"function-private":[135],"2-LIN":[139],"(aka,":[140],"DLIN)":[141],"assumption.":[142],"Overall,":[143],"shortened":[145],"ciphertexts":[148],"keys":[151],"inherently":[152],"leads":[153],"fewer":[155],"exponentiations":[156],"pairings":[158],"decryption,":[162],"hence":[164],"yields":[165],"better":[168],"computational":[169],"efficiency.":[170]},"counts_by_year":[],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}