{"id":"https://openalex.org/W3082244620","doi":"https://doi.org/10.1145/3411495.3421361","title":"Homomorphic String Search with Constant Multiplicative Depth","display_name":"Homomorphic String Search with Constant Multiplicative Depth","publication_year":2020,"publication_date":"2020-11-05","ids":{"openalex":"https://openalex.org/W3082244620","doi":"https://doi.org/10.1145/3411495.3421361","mag":"3082244620"},"language":"en","primary_location":{"id":"doi:10.1145/3411495.3421361","is_oa":false,"landing_page_url":"https://doi.org/10.1145/3411495.3421361","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Proceedings of the 2020 ACM SIGSAC Conference on Cloud Computing Security Workshop","raw_type":"proceedings-article"},"type":"article","indexed_in":["crossref"],"open_access":{"is_oa":true,"oa_status":"green","oa_url":"https://lirias.kuleuven.be/bitstream/123456789/679731/2/2020-931.pdf","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5050151756","display_name":"Charlotte Bonte","orcid":"https://orcid.org/0000-0002-4365-1845"},"institutions":[{"id":"https://openalex.org/I99464096","display_name":"KU Leuven","ror":"https://ror.org/05f950310","country_code":"BE","type":"education","lineage":["https://openalex.org/I99464096"]}],"countries":["BE"],"is_corresponding":false,"raw_author_name":"Charlotte Bonte","raw_affiliation_strings":["KU Leuven, Leuven, Belgium"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"KU Leuven, Leuven, Belgium","institution_ids":["https://openalex.org/I99464096"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5047514067","display_name":"Ilia Iliashenko","orcid":"https://orcid.org/0000-0002-9549-1003"},"institutions":[{"id":"https://openalex.org/I99464096","display_name":"KU Leuven","ror":"https://ror.org/05f950310","country_code":"BE","type":"education","lineage":["https://openalex.org/I99464096"]}],"countries":["BE"],"is_corresponding":false,"raw_author_name":"Ilia Iliashenko","raw_affiliation_strings":["KU Leuven, Leuven, Belgium"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"KU Leuven, Leuven, Belgium","institution_ids":["https://openalex.org/I99464096"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":[],"corresponding_institution_ids":["https://openalex.org/I99464096"],"apc_list":null,"apc_paid":null,"fwci":0.4063,"has_fulltext":true,"cited_by_count":6,"citation_normalized_percentile":{"value":0.69885451,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":90,"max":98},"biblio":{"volume":null,"issue":null,"first_page":"105","last_page":"117"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10237","display_name":"Cryptography and Data Security","score":0.9998000264167786,"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":0.9998000264167786,"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":0.9908999800682068,"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/homomorphic-encryption","display_name":"Homomorphic encryption","score":0.8415111303329468},{"id":"https://openalex.org/keywords/string","display_name":"String (physics)","score":0.6754999756813049},{"id":"https://openalex.org/keywords/string-searching-algorithm","display_name":"String searching algorithm","score":0.6549344062805176},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.6392195820808411},{"id":"https://openalex.org/keywords/encryption","display_name":"Encryption","score":0.5222060084342957},{"id":"https://openalex.org/keywords/theoretical-computer-science","display_name":"Theoretical computer science","score":0.48247459530830383},{"id":"https://openalex.org/keywords/constant","display_name":"Constant (computer programming)","score":0.47278571128845215},{"id":"https://openalex.org/keywords/multiplicative-function","display_name":"Multiplicative function","score":0.4523117244243622},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.3706050515174866},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.2771841883659363},{"id":"https://openalex.org/keywords/data-structure","display_name":"Data structure","score":0.27201664447784424},{"id":"https://openalex.org/keywords/computer-network","display_name":"Computer network","score":0.12543156743049622},{"id":"https://openalex.org/keywords/operating-system","display_name":"Operating system","score":0.10020667314529419}],"concepts":[{"id":"https://openalex.org/C158338273","wikidata":"https://www.wikidata.org/wiki/Q2154943","display_name":"Homomorphic encryption","level":3,"score":0.8415111303329468},{"id":"https://openalex.org/C157486923","wikidata":"https://www.wikidata.org/wiki/Q1376436","display_name":"String (physics)","level":2,"score":0.6754999756813049},{"id":"https://openalex.org/C7757238","wikidata":"https://www.wikidata.org/wiki/Q374040","display_name":"String searching algorithm","level":3,"score":0.6549344062805176},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.6392195820808411},{"id":"https://openalex.org/C148730421","wikidata":"https://www.wikidata.org/wiki/Q141090","display_name":"Encryption","level":2,"score":0.5222060084342957},{"id":"https://openalex.org/C80444323","wikidata":"https://www.wikidata.org/wiki/Q2878974","display_name":"Theoretical computer science","level":1,"score":0.48247459530830383},{"id":"https://openalex.org/C2777027219","wikidata":"https://www.wikidata.org/wiki/Q1284190","display_name":"Constant (computer programming)","level":2,"score":0.47278571128845215},{"id":"https://openalex.org/C42747912","wikidata":"https://www.wikidata.org/wiki/Q1048447","display_name":"Multiplicative function","level":2,"score":0.4523117244243622},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.3706050515174866},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.2771841883659363},{"id":"https://openalex.org/C162319229","wikidata":"https://www.wikidata.org/wiki/Q175263","display_name":"Data structure","level":2,"score":0.27201664447784424},{"id":"https://openalex.org/C31258907","wikidata":"https://www.wikidata.org/wiki/Q1301371","display_name":"Computer network","level":1,"score":0.12543156743049622},{"id":"https://openalex.org/C111919701","wikidata":"https://www.wikidata.org/wiki/Q9135","display_name":"Operating system","level":1,"score":0.10020667314529419},{"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/C199360897","wikidata":"https://www.wikidata.org/wiki/Q9143","display_name":"Programming language","level":1,"score":0.0},{"id":"https://openalex.org/C37914503","wikidata":"https://www.wikidata.org/wiki/Q156495","display_name":"Mathematical physics","level":1,"score":0.0}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.1145/3411495.3421361","is_oa":false,"landing_page_url":"https://doi.org/10.1145/3411495.3421361","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Proceedings of the 2020 ACM SIGSAC Conference on Cloud Computing Security Workshop","raw_type":"proceedings-article"},{"id":"pmh:oai:lirias2repo.kuleuven.be:123456789/679731","is_oa":true,"landing_page_url":"https://lirias.kuleuven.be/handle/123456789/679731","pdf_url":"https://lirias.kuleuven.be/bitstream/123456789/679731/2/2020-931.pdf","source":{"id":"https://openalex.org/S4306401954","display_name":"Lirias (KU Leuven)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I99464096","host_organization_name":"KU Leuven","host_organization_lineage":["https://openalex.org/I99464096"],"host_organization_lineage_names":[],"type":"repository"},"license":"other-oa","license_id":"https://openalex.org/licenses/other-oa","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"CCSW'20: the 2020 ACM SIGSAC Conference on Cloud Computing Security Workshop, Online","raw_type":"info:eu-repo/semantics/publishedVersion"}],"best_oa_location":{"id":"pmh:oai:lirias2repo.kuleuven.be:123456789/679731","is_oa":true,"landing_page_url":"https://lirias.kuleuven.be/handle/123456789/679731","pdf_url":"https://lirias.kuleuven.be/bitstream/123456789/679731/2/2020-931.pdf","source":{"id":"https://openalex.org/S4306401954","display_name":"Lirias (KU Leuven)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I99464096","host_organization_name":"KU Leuven","host_organization_lineage":["https://openalex.org/I99464096"],"host_organization_lineage_names":[],"type":"repository"},"license":"other-oa","license_id":"https://openalex.org/licenses/other-oa","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"CCSW'20: the 2020 ACM SIGSAC Conference on Cloud Computing Security Workshop, Online","raw_type":"info:eu-repo/semantics/publishedVersion"},"sustainable_development_goals":[],"awards":[{"id":"https://openalex.org/G2718964516","display_name":"Analysis of privacy-friendly pattern matching using homomorphic encryption","funder_award_id":"12ZG620N","funder_id":"https://openalex.org/F4320321730","funder_display_name":"Fonds Wetenschappelijk Onderzoek"},{"id":"https://openalex.org/G3051840866","display_name":null,"funder_award_id":"VR20192203","funder_id":"https://openalex.org/F4320335809","funder_display_name":"Departement Economie, Wetenschap en Innovatie"},{"id":"https://openalex.org/G33718106","display_name":null,"funder_award_id":"ERC-2015-AdG-IMPaCT","funder_id":"https://openalex.org/F4320338352","funder_display_name":"FP7 Ideas: European Research Council"},{"id":"https://openalex.org/G4435414571","display_name":null,"funder_award_id":"VR20192203","funder_id":"https://openalex.org/F4320327336","funder_display_name":"Vlaamse regering"},{"id":"https://openalex.org/G8253217416","display_name":null,"funder_award_id":"ERC-2015-AdG","funder_id":"https://openalex.org/F4320321730","funder_display_name":"Fonds Wetenschappelijk Onderzoek"}],"funders":[{"id":"https://openalex.org/F4320321730","display_name":"Fonds Wetenschappelijk Onderzoek","ror":"https://ror.org/03qtxy027"},{"id":"https://openalex.org/F4320327336","display_name":"Vlaamse regering","ror":null},{"id":"https://openalex.org/F4320335809","display_name":"Departement Economie, Wetenschap en Innovatie","ror":null},{"id":"https://openalex.org/F4320338352","display_name":"FP7 Ideas: European Research Council","ror":"https://ror.org/0472cxd90"}],"has_content":{"grobid_xml":true,"pdf":true},"content_urls":{"pdf":"https://content.openalex.org/works/W3082244620.pdf","grobid_xml":"https://content.openalex.org/works/W3082244620.grobid-xml"},"referenced_works_count":18,"referenced_works":["https://openalex.org/W236632755","https://openalex.org/W774911181","https://openalex.org/W913176383","https://openalex.org/W1966731635","https://openalex.org/W2009994177","https://openalex.org/W2060238632","https://openalex.org/W2070678975","https://openalex.org/W2150307013","https://openalex.org/W2152926062","https://openalex.org/W2176745559","https://openalex.org/W2358010479","https://openalex.org/W2400700555","https://openalex.org/W2554750353","https://openalex.org/W2794634409","https://openalex.org/W2889629344","https://openalex.org/W2897411411","https://openalex.org/W2914537682","https://openalex.org/W2962706177"],"related_works":["https://openalex.org/W2539930818","https://openalex.org/W4390664647","https://openalex.org/W3012147850","https://openalex.org/W4313300189","https://openalex.org/W2949835517","https://openalex.org/W4230921427","https://openalex.org/W2024445065","https://openalex.org/W2998410131","https://openalex.org/W2462428821","https://openalex.org/W4288309913"],"abstract_inverted_index":{"String":[0],"search":[1,38,46,59,158],"finds":[2],"occurrences":[3],"of":[4,56,71,87,96,103,105,134,165,183],"patterns":[5,104],"in":[6,14,47,143,180],"a":[7,44,62,100,135,144,153,175,181,194],"larger":[8],"text.":[9],"This":[10,75,108],"general":[11],"problem":[12],"occurs":[13],"various":[15],"application":[16],"scenarios,":[17],"f.e.":[18],"Internet":[19],"search,":[20],"text":[21,145,182,195],"processing,":[22],"DNA":[23],"analysis,":[24],"etc.":[25],"Using":[26],"somewhat":[27],"homomorphic":[28,64],"encryption":[29,97],"with":[30,50,137,146,177,196],"SIMD":[31],"packing,":[32],"we":[33,151],"provide":[34,152],"an":[35,127],"efficient":[36],"string":[37,58,136,176],"protocol":[39,60,89],"that":[40,155],"allows":[41],"to":[42,130],"perform":[43],"private":[45],"outsourced":[48],"data":[49],"minimal":[51],"preprocessing.":[52],"At":[53],"the":[54,57,72,80,85,93,118,132,157,162,166,170],"base":[55],"lies":[61],"randomized":[63],"equality":[65],"circuit":[66,76],"whose":[67],"depth":[68,110],"is":[69,112,186],"independent":[70],"pattern":[73],"length.":[74],"not":[77],"only":[78],"improves":[79],"performance":[81],"but":[82],"also":[83],"increases":[84],"practicality":[86],"our":[88],"as":[90],"it":[91],"requires":[92],"same":[94],"set":[95],"parameters":[98],"for":[99,173,193],"wide":[101],"range":[102],"different":[106],"lengths.":[107],"constant":[109],"algorithm":[111],"about":[113,123,187],"12":[114],"times":[115],"faster":[116],"than":[117],"prior":[119],"work.":[120],"It":[121],"takes":[122],"5":[124],"minutes":[125],"on":[126],"average":[128],"laptop":[129],"find":[131],"positions":[133],"at":[138],"most":[139],"50":[140,178],"UTF-32":[141],"characters":[142,179],"1000":[147],"characters.":[148,198],"In":[149],"addition,":[150],"method":[154],"compresses":[156],"results,":[159],"thus":[160],"reducing":[161],"communication":[163,171],"cost":[164],"protocol.":[167],"For":[168],"example,":[169],"complexity":[172],"searching":[174],"length":[184],"10000":[185],"347":[188],"KB":[189],"and":[190],"13.9":[191],"MB":[192],"1000000":[197]},"counts_by_year":[{"year":2026,"cited_by_count":2},{"year":2025,"cited_by_count":1},{"year":2023,"cited_by_count":1},{"year":2021,"cited_by_count":2}],"updated_date":"2026-06-26T08:34:08.712188","created_date":"2025-10-10T00:00:00"}