{"id":"https://openalex.org/W4409095122","doi":"https://doi.org/10.1145/3722041.3723104","title":"Provable Co-Owned Data Deletion with Zero-Residuals and Verifiability in Multi-Cloud Environment","display_name":"Provable Co-Owned Data Deletion with Zero-Residuals and Verifiability in Multi-Cloud Environment","publication_year":2025,"publication_date":"2025-03-30","ids":{"openalex":"https://openalex.org/W4409095122","doi":"https://doi.org/10.1145/3722041.3723104"},"language":"en","primary_location":{"id":"doi:10.1145/3722041.3723104","is_oa":true,"landing_page_url":"https://doi.org/10.1145/3722041.3723104","pdf_url":null,"source":null,"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Proceedings of the 18th European Workshop on Systems Security","raw_type":"proceedings-article"},"type":"article","indexed_in":["crossref"],"open_access":{"is_oa":true,"oa_status":"gold","oa_url":"https://doi.org/10.1145/3722041.3723104","any_repository_has_fulltext":null},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5074412892","display_name":"Marwan Adnan Darwish","orcid":"https://orcid.org/0000-0002-1621-3890"},"institutions":[{"id":"https://openalex.org/I98358874","display_name":"Delft University of Technology","ror":"https://ror.org/02e2c7k09","country_code":"NL","type":"education","lineage":["https://openalex.org/I98358874"]}],"countries":["NL"],"is_corresponding":false,"raw_author_name":"Marwan Adnan Darwish","raw_affiliation_strings":["Delft University of Technology, The Netherlands"],"raw_orcid":"https://orcid.org/0000-0002-1621-3890","affiliations":[{"raw_affiliation_string":"Delft University of Technology, The Netherlands","institution_ids":["https://openalex.org/I98358874"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5027911728","display_name":"Evangelia Anna Markatou","orcid":"https://orcid.org/0009-0005-3902-977X"},"institutions":[{"id":"https://openalex.org/I98358874","display_name":"Delft University of Technology","ror":"https://ror.org/02e2c7k09","country_code":"NL","type":"education","lineage":["https://openalex.org/I98358874"]}],"countries":["NL"],"is_corresponding":false,"raw_author_name":"Evangelia Anna Markatou","raw_affiliation_strings":["Delft University of Technology, The Netherlands"],"raw_orcid":"https://orcid.org/0009-0005-3902-977X","affiliations":[{"raw_affiliation_string":"Delft University of Technology, The Netherlands","institution_ids":["https://openalex.org/I98358874"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5005247877","display_name":"Georgios Smaragdakis","orcid":"https://orcid.org/0000-0002-4127-3617"},"institutions":[{"id":"https://openalex.org/I98358874","display_name":"Delft University of Technology","ror":"https://ror.org/02e2c7k09","country_code":"NL","type":"education","lineage":["https://openalex.org/I98358874"]}],"countries":["NL"],"is_corresponding":false,"raw_author_name":"Georgios Smaragdakis","raw_affiliation_strings":["Delft University of Technology, The Netherlands"],"raw_orcid":"https://orcid.org/0000-0002-4127-3617","affiliations":[{"raw_affiliation_string":"Delft University of Technology, The Netherlands","institution_ids":["https://openalex.org/I98358874"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":[],"corresponding_institution_ids":["https://openalex.org/I98358874"],"apc_list":null,"apc_paid":null,"fwci":2.2353,"has_fulltext":false,"cited_by_count":1,"citation_normalized_percentile":{"value":0.86446886,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":91,"max":95},"biblio":{"volume":null,"issue":null,"first_page":"77","last_page":"83"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11614","display_name":"Cloud Data Security Solutions","score":0.9994999766349792,"subfield":{"id":"https://openalex.org/subfields/1710","display_name":"Information Systems"},"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/T11614","display_name":"Cloud Data Security Solutions","score":0.9994999766349792,"subfield":{"id":"https://openalex.org/subfields/1710","display_name":"Information Systems"},"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/T10237","display_name":"Cryptography and Data Security","score":0.9990000128746033,"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/T10101","display_name":"Cloud Computing and Resource Management","score":0.9941999912261963,"subfield":{"id":"https://openalex.org/subfields/1710","display_name":"Information Systems"},"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/cloud-computing","display_name":"Cloud computing","score":0.7972131967544556},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.6868370771408081},{"id":"https://openalex.org/keywords/zero","display_name":"Zero (linguistics)","score":0.5367060899734497},{"id":"https://openalex.org/keywords/zero-knowledge-proof","display_name":"Zero-knowledge proof","score":0.48430219292640686},{"id":"https://openalex.org/keywords/computer-security","display_name":"Computer security","score":0.41358956694602966},{"id":"https://openalex.org/keywords/cryptography","display_name":"Cryptography","score":0.15707272291183472},{"id":"https://openalex.org/keywords/operating-system","display_name":"Operating system","score":0.10010075569152832}],"concepts":[{"id":"https://openalex.org/C79974875","wikidata":"https://www.wikidata.org/wiki/Q483639","display_name":"Cloud computing","level":2,"score":0.7972131967544556},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.6868370771408081},{"id":"https://openalex.org/C2780813799","wikidata":"https://www.wikidata.org/wiki/Q3274237","display_name":"Zero (linguistics)","level":2,"score":0.5367060899734497},{"id":"https://openalex.org/C176329583","wikidata":"https://www.wikidata.org/wiki/Q191943","display_name":"Zero-knowledge proof","level":3,"score":0.48430219292640686},{"id":"https://openalex.org/C38652104","wikidata":"https://www.wikidata.org/wiki/Q3510521","display_name":"Computer security","level":1,"score":0.41358956694602966},{"id":"https://openalex.org/C178489894","wikidata":"https://www.wikidata.org/wiki/Q8789","display_name":"Cryptography","level":2,"score":0.15707272291183472},{"id":"https://openalex.org/C111919701","wikidata":"https://www.wikidata.org/wiki/Q9135","display_name":"Operating system","level":1,"score":0.10010075569152832},{"id":"https://openalex.org/C41895202","wikidata":"https://www.wikidata.org/wiki/Q8162","display_name":"Linguistics","level":1,"score":0.0},{"id":"https://openalex.org/C138885662","wikidata":"https://www.wikidata.org/wiki/Q5891","display_name":"Philosophy","level":0,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1145/3722041.3723104","is_oa":true,"landing_page_url":"https://doi.org/10.1145/3722041.3723104","pdf_url":null,"source":null,"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Proceedings of the 18th European Workshop on Systems Security","raw_type":"proceedings-article"}],"best_oa_location":{"id":"doi:10.1145/3722041.3723104","is_oa":true,"landing_page_url":"https://doi.org/10.1145/3722041.3723104","pdf_url":null,"source":null,"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Proceedings of the 18th European Workshop on Systems Security","raw_type":"proceedings-article"},"sustainable_development_goals":[{"id":"https://metadata.un.org/sdg/13","display_name":"Climate action","score":0.5299999713897705}],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":26,"referenced_works":["https://openalex.org/W185637121","https://openalex.org/W625616531","https://openalex.org/W1544304752","https://openalex.org/W1970396526","https://openalex.org/W1993705641","https://openalex.org/W2018524855","https://openalex.org/W2045802490","https://openalex.org/W2074400425","https://openalex.org/W2114579918","https://openalex.org/W2132372908","https://openalex.org/W2169556792","https://openalex.org/W2318731653","https://openalex.org/W2400506019","https://openalex.org/W2518915672","https://openalex.org/W2913048961","https://openalex.org/W3021755026","https://openalex.org/W3132608613","https://openalex.org/W4205232136","https://openalex.org/W4252033442","https://openalex.org/W4311668283","https://openalex.org/W4372046852","https://openalex.org/W4379620272","https://openalex.org/W4390101996","https://openalex.org/W4393927924","https://openalex.org/W4398186482","https://openalex.org/W6893147162"],"related_works":["https://openalex.org/W4391375266","https://openalex.org/W2899084033","https://openalex.org/W2748952813","https://openalex.org/W1870614684","https://openalex.org/W194387157","https://openalex.org/W2000850689","https://openalex.org/W59628553","https://openalex.org/W1483984920","https://openalex.org/W4406460655","https://openalex.org/W2952570804"],"abstract_inverted_index":{"The":[0,222],"rapid":[1],"expansion":[2],"of":[3,10,22,63,69,228,235],"multi-cloud":[4,74,240],"environments":[5],"and":[6,31,66,143,159,200],"the":[7,19,49,61,106,182,239],"growing":[8],"prevalence":[9],"collaborative":[11],"data":[12,72,83,88,103,127,138,148,164,183,223],"ownership":[13,30],"present":[14],"significant":[15],"challenges":[16],"in":[17,73],"ensuring":[18,156],"verifiable":[20,67,201],"deletion":[21,41,50,68,202,237],"co-owned":[23],"data.":[24],"Current":[25],"approaches":[26],"predominantly":[27],"address":[28],"individual":[29],"often":[32],"rely":[33],"on":[34],"simplistic":[35],"one-bit":[36],"result":[37],"protocols":[38],"where":[39],"a":[40,52,78,82,152,226],"command":[42],"merely":[43],"outputs":[44],"success":[45],"or":[46,166],"failure,":[47],"turning":[48],"into":[51],"black":[53],"box":[54],"without":[55],"proper":[56],"verification.":[57,221],"This":[58],"paper":[59],"tackles":[60],"problem":[62],"secure":[64,236],"processing":[65],"shared":[70],"outsourced":[71],"environments.":[75],"We":[76],"design":[77],"framework":[79,175],"that":[80,101],"enables":[81],"owner":[84,224],"to":[85,89,118,124,170,180],"outsource":[86],"encrypted":[87],"multiple":[90],"co-owners,":[91],"who":[92],"perform":[93],"computations":[94],"directly":[95],"within":[96,151,203],"their":[97],"respective":[98],"cloud":[99,113,205],"providers---ensuring":[100],"sensitive":[102],"never":[104],"leaves":[105],"cloud.":[107],"Our":[108],"system":[109],"leverages":[110],"readily":[111],"available":[112],"Hardware":[114],"Security":[115],"Modules":[116],"(HSMs)":[117],"manage":[119],"cryptographic":[120],"keys":[121],"from":[122],"generation":[123],"controlled":[125,157],"destruction---ensuring":[126],"remains":[128],"inaccessible":[129],"beyond":[130],"its":[131],"intended":[132],"use.":[133],"Secure":[134],"Enclaves":[135],"enforce":[136],"on-cloud":[137],"computation,":[139],"eliminating":[140],"local":[141],"copies":[142],"preventing":[144],"unauthorized":[145],"exposure.":[146],"Encrypted":[147],"is":[149,187],"structured":[150],"fixed":[153],"storage":[154,161,199],"model,":[155],"allocation":[158],"strict":[160],"constraints.":[162],"When":[163],"expires":[165],"must":[167],"be":[168],"deleted":[169],"meet":[171],"regulatory":[172],"requirements,":[173],"our":[174],"triggers":[176],"zero-residual":[177],"permuted":[178],"overwriting":[179],"remove":[181],"traces":[184],"irreversibly.":[185],"Verifiability":[186],"achieved":[188],"at":[189],"two":[190],"levels:":[191],"Bounded":[192],"Merkle":[193,210],"Hash":[194],"Tree":[195],"(BMHT)":[196],"ensures":[197],"bounded":[198],"each":[204],"provider.":[206],"In":[207],"contrast,":[208],"Global":[209],"Forest":[211],"(GMF)":[212],"aggregates":[213],"BMHT":[214,230],"roots":[215],"across":[216,238],"providers,":[217],"enabling":[218],"consistent":[219],"global":[220],"maintains":[225],"log":[227],"these":[229],"roots,":[231],"allowing":[232],"independent":[233],"verification":[234],"environment.":[241]},"counts_by_year":[{"year":2025,"cited_by_count":1}],"updated_date":"2026-06-26T08:34:08.712188","created_date":"2025-10-10T00:00:00"}
