{"id":"https://openalex.org/W4322576432","doi":"https://doi.org/10.1109/tc.2023.3248272","title":"Hitchhiker: Accelerating ORAM With Dynamic Scheduling","display_name":"Hitchhiker: Accelerating ORAM With Dynamic Scheduling","publication_year":2023,"publication_date":"2023-02-27","ids":{"openalex":"https://openalex.org/W4322576432","doi":"https://doi.org/10.1109/tc.2023.3248272"},"language":"en","primary_location":{"id":"doi:10.1109/tc.2023.3248272","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tc.2023.3248272","pdf_url":null,"source":{"id":"https://openalex.org/S157670870","display_name":"IEEE Transactions on Computers","issn_l":"0018-9340","issn":["0018-9340","1557-9956","2326-3814"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319808","host_organization_name":"Institute of Electrical and Electronics Engineers","host_organization_lineage":["https://openalex.org/P4310319808"],"host_organization_lineage_names":["Institute of Electrical and Electronics Engineers"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE Transactions on Computers","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/A5087387499","display_name":"Jingsen Zhu","orcid":null},"institutions":[{"id":"https://openalex.org/I168879160","display_name":"Zhejiang University of Science and Technology","ror":"https://ror.org/05mx0wr29","country_code":"CN","type":"education","lineage":["https://openalex.org/I168879160"]}],"countries":["CN"],"is_corresponding":true,"raw_author_name":"Jingsen Zhu","raw_affiliation_strings":["College of Computer Science and Technology, Zhejiang University, Hangzhou, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"College of Computer Science and Technology, Zhejiang University, Hangzhou, China","institution_ids":["https://openalex.org/I168879160"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5064977234","display_name":"Mengming Li","orcid":null},"institutions":[{"id":"https://openalex.org/I76130692","display_name":"Zhejiang University","ror":"https://ror.org/00a2xv884","country_code":"CN","type":"education","lineage":["https://openalex.org/I76130692"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Mengming Li","raw_affiliation_strings":["School of Software Technology, Zhejiang University, Hangzhou, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"School of Software Technology, Zhejiang University, Hangzhou, China","institution_ids":["https://openalex.org/I76130692"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5100635711","display_name":"Xingjian Zhang","orcid":"https://orcid.org/0000-0001-8009-0242"},"institutions":[{"id":"https://openalex.org/I168879160","display_name":"Zhejiang University of Science and Technology","ror":"https://ror.org/05mx0wr29","country_code":"CN","type":"education","lineage":["https://openalex.org/I168879160"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Xingjian Zhang","raw_affiliation_strings":["College of Computer Science and Technology, Zhejiang University, Hangzhou, China"],"raw_orcid":"https://orcid.org/0000-0001-8009-0242","affiliations":[{"raw_affiliation_string":"College of Computer Science and Technology, Zhejiang University, Hangzhou, China","institution_ids":["https://openalex.org/I168879160"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5045274451","display_name":"Kai Bu","orcid":"https://orcid.org/0000-0003-1188-801X"},"institutions":[{"id":"https://openalex.org/I168879160","display_name":"Zhejiang University of Science and Technology","ror":"https://ror.org/05mx0wr29","country_code":"CN","type":"education","lineage":["https://openalex.org/I168879160"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Kai Bu","raw_affiliation_strings":["College of Computer Science and Technology, Zhejiang University, Hangzhou, China"],"raw_orcid":"https://orcid.org/0000-0003-1188-801X","affiliations":[{"raw_affiliation_string":"College of Computer Science and Technology, Zhejiang University, Hangzhou, China","institution_ids":["https://openalex.org/I168879160"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5100376481","display_name":"Miao Zhang","orcid":"https://orcid.org/0000-0002-7907-2255"},"institutions":[{"id":"https://openalex.org/I168879160","display_name":"Zhejiang University of Science and Technology","ror":"https://ror.org/05mx0wr29","country_code":"CN","type":"education","lineage":["https://openalex.org/I168879160"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Miao Zhang","raw_affiliation_strings":["College of Computer Science and Technology, Zhejiang University, Hangzhou, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"College of Computer Science and Technology, Zhejiang University, Hangzhou, China","institution_ids":["https://openalex.org/I168879160"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5101789267","display_name":"Tianqi Song","orcid":"https://orcid.org/0000-0001-6402-1212"},"institutions":[{"id":"https://openalex.org/I168879160","display_name":"Zhejiang University of Science and Technology","ror":"https://ror.org/05mx0wr29","country_code":"CN","type":"education","lineage":["https://openalex.org/I168879160"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Tianqi Song","raw_affiliation_strings":["College of Computer Science and Technology, Zhejiang University, Hangzhou, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"College of Computer Science and Technology, Zhejiang University, Hangzhou, China","institution_ids":["https://openalex.org/I168879160"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":6,"corresponding_author_ids":["https://openalex.org/A5087387499"],"corresponding_institution_ids":["https://openalex.org/I168879160"],"apc_list":null,"apc_paid":null,"fwci":1.0225,"has_fulltext":false,"cited_by_count":6,"citation_normalized_percentile":{"value":0.80182592,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":96,"max":97},"biblio":{"volume":"72","issue":"8","first_page":"2321","last_page":"2335"},"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/T11424","display_name":"Security and Verification in Computing","score":0.9987999796867371,"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/T10502","display_name":"Advanced Memory and Neural Computing","score":0.9955000281333923,"subfield":{"id":"https://openalex.org/subfields/2208","display_name":"Electrical and Electronic Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.7946957349777222},{"id":"https://openalex.org/keywords/parallel-computing","display_name":"Parallel computing","score":0.7662968635559082},{"id":"https://openalex.org/keywords/scheduling","display_name":"Scheduling (production processes)","score":0.6179164052009583},{"id":"https://openalex.org/keywords/bottleneck","display_name":"Bottleneck","score":0.48604756593704224},{"id":"https://openalex.org/keywords/latency","display_name":"Latency (audio)","score":0.44076284766197205},{"id":"https://openalex.org/keywords/spec#","display_name":"Spec#","score":0.4305911064147949},{"id":"https://openalex.org/keywords/dynamic-programming","display_name":"Dynamic programming","score":0.41107118129730225},{"id":"https://openalex.org/keywords/embedded-system","display_name":"Embedded system","score":0.2874833345413208},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.24613073468208313},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.1751556694507599},{"id":"https://openalex.org/keywords/mathematical-optimization","display_name":"Mathematical optimization","score":0.1336149275302887},{"id":"https://openalex.org/keywords/programming-language","display_name":"Programming language","score":0.09081655740737915}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.7946957349777222},{"id":"https://openalex.org/C173608175","wikidata":"https://www.wikidata.org/wiki/Q232661","display_name":"Parallel computing","level":1,"score":0.7662968635559082},{"id":"https://openalex.org/C206729178","wikidata":"https://www.wikidata.org/wiki/Q2271896","display_name":"Scheduling (production processes)","level":2,"score":0.6179164052009583},{"id":"https://openalex.org/C2780513914","wikidata":"https://www.wikidata.org/wiki/Q18210350","display_name":"Bottleneck","level":2,"score":0.48604756593704224},{"id":"https://openalex.org/C82876162","wikidata":"https://www.wikidata.org/wiki/Q17096504","display_name":"Latency (audio)","level":2,"score":0.44076284766197205},{"id":"https://openalex.org/C2778565505","wikidata":"https://www.wikidata.org/wiki/Q2207566","display_name":"Spec#","level":2,"score":0.4305911064147949},{"id":"https://openalex.org/C37404715","wikidata":"https://www.wikidata.org/wiki/Q380679","display_name":"Dynamic programming","level":2,"score":0.41107118129730225},{"id":"https://openalex.org/C149635348","wikidata":"https://www.wikidata.org/wiki/Q193040","display_name":"Embedded system","level":1,"score":0.2874833345413208},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.24613073468208313},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.1751556694507599},{"id":"https://openalex.org/C126255220","wikidata":"https://www.wikidata.org/wiki/Q141495","display_name":"Mathematical optimization","level":1,"score":0.1336149275302887},{"id":"https://openalex.org/C199360897","wikidata":"https://www.wikidata.org/wiki/Q9143","display_name":"Programming language","level":1,"score":0.09081655740737915},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/tc.2023.3248272","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tc.2023.3248272","pdf_url":null,"source":{"id":"https://openalex.org/S157670870","display_name":"IEEE Transactions on Computers","issn_l":"0018-9340","issn":["0018-9340","1557-9956","2326-3814"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319808","host_organization_name":"Institute of Electrical and Electronics Engineers","host_organization_lineage":["https://openalex.org/P4310319808"],"host_organization_lineage_names":["Institute of Electrical and Electronics Engineers"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE Transactions on Computers","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[{"display_name":"Affordable and clean energy","score":0.9100000262260437,"id":"https://metadata.un.org/sdg/7"}],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":47,"referenced_works":["https://openalex.org/W1488058190","https://openalex.org/W1489988510","https://openalex.org/W1545698365","https://openalex.org/W1548777816","https://openalex.org/W1821700043","https://openalex.org/W1988374166","https://openalex.org/W2005476481","https://openalex.org/W2005756274","https://openalex.org/W2013066047","https://openalex.org/W2054688000","https://openalex.org/W2103919170","https://openalex.org/W2137453738","https://openalex.org/W2143020967","https://openalex.org/W2147657366","https://openalex.org/W2160222995","https://openalex.org/W2166247408","https://openalex.org/W2166293920","https://openalex.org/W2170993700","https://openalex.org/W2238694998","https://openalex.org/W2240862428","https://openalex.org/W2404098708","https://openalex.org/W2517979719","https://openalex.org/W2613283858","https://openalex.org/W2625527027","https://openalex.org/W2625555681","https://openalex.org/W2625689039","https://openalex.org/W2725159389","https://openalex.org/W2766026515","https://openalex.org/W2794733520","https://openalex.org/W2795194469","https://openalex.org/W2884342144","https://openalex.org/W2902751186","https://openalex.org/W2902856285","https://openalex.org/W2903975607","https://openalex.org/W2905380323","https://openalex.org/W2908077141","https://openalex.org/W2952265249","https://openalex.org/W2963354136","https://openalex.org/W2980172415","https://openalex.org/W2985716091","https://openalex.org/W3008872115","https://openalex.org/W3015480182","https://openalex.org/W3016366555","https://openalex.org/W3148657381","https://openalex.org/W4244889001","https://openalex.org/W6638566613","https://openalex.org/W6713547331"],"related_works":["https://openalex.org/W878150521","https://openalex.org/W2008941207","https://openalex.org/W2373662841","https://openalex.org/W1970478390","https://openalex.org/W1657880117","https://openalex.org/W1533638723","https://openalex.org/W2595172197","https://openalex.org/W294916044","https://openalex.org/W2131667412","https://openalex.org/W1981130628"],"abstract_inverted_index":{"Oblivious":[0],"RAM":[1],"(ORAM)":[2],"remains":[3],"a":[4,27,66],"bittersweet":[5],"protection":[6],"of":[7,12,31,47,52,131],"memory":[8,38,124,159],"access":[9],"patterns":[10],"because":[11],"its":[13],"prohibitively":[14],"high":[15],"overhead.":[16],"The":[17],"root":[18],"cause":[19],"is":[20,183,194],"that":[21,76],"ORAM":[22,53,68,79,86,104,136,155,182,193],"hides":[23],"intended":[24],"accesses":[25,39,119,125],"among":[26],"sufficiently":[28],"large":[29],"number":[30],"dummy":[32],"accesses.":[33],"Most":[34],"existing":[35],"optimizations":[36],"mitigate":[37],"using":[40],"architectural":[41],"enhancements":[42],"(e.g.,":[43],"cache)":[44],"yet":[45],"few":[46],"them":[48],"improve":[49],"the":[50,128,148,175,187],"efficiency":[51,105],"primitives":[54,80],"per":[55,93],"se.":[56],"In":[57,145,172],"this":[58],"paper,":[59],"we":[60],"identify":[61],"path-grained":[62],"static":[63],"scheduling":[64,75,134,141],"as":[65,110,112,116,120],"fundamental":[67],"performance":[69],"bottleneck.":[70],"We":[71,100,138],"propose":[72],"level-grained":[73],"dynamic":[74,133,140],"directly":[77],"optimizes":[78],"to":[81,87],"boost":[82,103],"efficiency.":[83],"It":[84],"enables":[85],"service":[88],"more":[89],"than":[90],"one":[91],"request":[92],"path":[94],"and":[95,114,164,186],"write":[96],"paths":[97],"batch":[98],"wise.":[99],"can":[101],"thus":[102],"through":[106,142],"handling":[107],"queued":[108],"requests":[109],"soon":[111],"possible":[113],"remove":[115],"many":[117],"redundant":[118],"possible.":[121],"Since":[122],"optimized":[123],"still":[126],"target":[127],"same":[129],"set":[130],"paths,":[132],"preserves":[135],"security.":[137],"implement":[139],"Hitchhiker":[143,154,181],"ORAM.":[144],"comparison":[146,173],"with":[147,174],"state-of-the-art":[149,176],"primitive-optimized":[150],"Fork":[151],"Path":[152],"ORAM,":[153],"yields":[156],"31.5%":[157],"fewer":[158],"accesses,":[160],"60.2%":[161],"shorter":[162],"latency,":[163],"40.7%":[165],"less":[166],"energy":[167],"consumption,":[168],"being":[169],"2.5\u00d7":[170],"faster.":[171,196],"architecture-optimized":[177],"<inline-formula><tex-math":[178,190],"notation=\"LaTeX\">$\\rho$</tex-math></inline-formula>":[179,191],",":[180],"1.5\u00d7":[184],"faster":[185],"integrated":[188],"version\u2014":[189],"-Hitchhiker":[192],"2.0\u00d7":[195]},"counts_by_year":[{"year":2025,"cited_by_count":3},{"year":2024,"cited_by_count":3}],"updated_date":"2026-03-27T05:58:40.876381","created_date":"2025-10-10T00:00:00"}