{"id":"https://openalex.org/W2117964996","doi":"https://doi.org/10.4304/jcp.4.12.1322-1331","title":"Key-Lock Mechanisms for Object Protection in Single-Address-Space Systems","display_name":"Key-Lock Mechanisms for Object Protection in Single-Address-Space Systems","publication_year":2009,"publication_date":"2009-11-20","ids":{"openalex":"https://openalex.org/W2117964996","doi":"https://doi.org/10.4304/jcp.4.12.1322-1331","mag":"2117964996"},"language":"en","primary_location":{"id":"doi:10.4304/jcp.4.12.1322-1331","is_oa":false,"landing_page_url":"https://doi.org/10.4304/jcp.4.12.1322-1331","pdf_url":null,"source":{"id":"https://openalex.org/S77894049","display_name":"Journal of Computers","issn_l":"1796-203X","issn":["1796-203X"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310318660","host_organization_name":"Academy Publisher","host_organization_lineage":["https://openalex.org/P4310318660"],"host_organization_lineage_names":["Academy Publisher"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Journal of 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/A5007891970","display_name":"Lanfranco Lopriore","orcid":null},"institutions":[{"id":"https://openalex.org/I108290504","display_name":"University of Pisa","ror":"https://ror.org/03ad39j10","country_code":"IT","type":"education","lineage":["https://openalex.org/I108290504"]}],"countries":["IT"],"is_corresponding":true,"raw_author_name":"Lanfranco Lopriore","raw_affiliation_strings":["University of Pisa,#TAB#"],"affiliations":[{"raw_affiliation_string":"University of Pisa,#TAB#","institution_ids":["https://openalex.org/I108290504"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":["https://openalex.org/A5007891970"],"corresponding_institution_ids":["https://openalex.org/I108290504"],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":false,"cited_by_count":0,"citation_normalized_percentile":{"value":0.1209025,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":"4","issue":"12","first_page":null,"last_page":null},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11424","display_name":"Security and Verification in Computing","score":0.9998999834060669,"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/T11424","display_name":"Security and Verification in Computing","score":0.9998999834060669,"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/T11241","display_name":"Advanced Malware Detection Techniques","score":0.9987000226974487,"subfield":{"id":"https://openalex.org/subfields/1711","display_name":"Signal Processing"},"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":0.9948999881744385,"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/lock","display_name":"Lock (firearm)","score":0.8177286386489868},{"id":"https://openalex.org/keywords/key","display_name":"Key (lock)","score":0.7353015542030334},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.691647469997406},{"id":"https://openalex.org/keywords/object","display_name":"Object (grammar)","score":0.5407393574714661},{"id":"https://openalex.org/keywords/space","display_name":"Space (punctuation)","score":0.4980185031890869},{"id":"https://openalex.org/keywords/computer-security","display_name":"Computer security","score":0.44228360056877136},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.11808091402053833},{"id":"https://openalex.org/keywords/operating-system","display_name":"Operating system","score":0.08720791339874268},{"id":"https://openalex.org/keywords/geography","display_name":"Geography","score":0.07790327072143555}],"concepts":[{"id":"https://openalex.org/C174839445","wikidata":"https://www.wikidata.org/wiki/Q1134386","display_name":"Lock (firearm)","level":2,"score":0.8177286386489868},{"id":"https://openalex.org/C26517878","wikidata":"https://www.wikidata.org/wiki/Q228039","display_name":"Key (lock)","level":2,"score":0.7353015542030334},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.691647469997406},{"id":"https://openalex.org/C2781238097","wikidata":"https://www.wikidata.org/wiki/Q175026","display_name":"Object (grammar)","level":2,"score":0.5407393574714661},{"id":"https://openalex.org/C2778572836","wikidata":"https://www.wikidata.org/wiki/Q380933","display_name":"Space (punctuation)","level":2,"score":0.4980185031890869},{"id":"https://openalex.org/C38652104","wikidata":"https://www.wikidata.org/wiki/Q3510521","display_name":"Computer security","level":1,"score":0.44228360056877136},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.11808091402053833},{"id":"https://openalex.org/C111919701","wikidata":"https://www.wikidata.org/wiki/Q9135","display_name":"Operating system","level":1,"score":0.08720791339874268},{"id":"https://openalex.org/C205649164","wikidata":"https://www.wikidata.org/wiki/Q1071","display_name":"Geography","level":0,"score":0.07790327072143555},{"id":"https://openalex.org/C166957645","wikidata":"https://www.wikidata.org/wiki/Q23498","display_name":"Archaeology","level":1,"score":0.0}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.4304/jcp.4.12.1322-1331","is_oa":false,"landing_page_url":"https://doi.org/10.4304/jcp.4.12.1322-1331","pdf_url":null,"source":{"id":"https://openalex.org/S77894049","display_name":"Journal of Computers","issn_l":"1796-203X","issn":["1796-203X"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310318660","host_organization_name":"Academy Publisher","host_organization_lineage":["https://openalex.org/P4310318660"],"host_organization_lineage_names":["Academy Publisher"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Journal of Computers","raw_type":"journal-article"},{"id":"pmh:oai:arpi.unipi.it:11568/131182","is_oa":false,"landing_page_url":"http://hdl.handle.net/11568/131182","pdf_url":null,"source":{"id":"https://openalex.org/S4377196265","display_name":"CINECA IRIS Institutial research information system (University of Pisa)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I108290504","host_organization_name":"University of Pisa","host_organization_lineage":["https://openalex.org/I108290504"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"","raw_type":"info:eu-repo/semantics/article"}],"best_oa_location":null,"sustainable_development_goals":[{"display_name":"Peace, Justice and strong institutions","score":0.75,"id":"https://metadata.un.org/sdg/16"}],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":35,"referenced_works":["https://openalex.org/W1492409500","https://openalex.org/W1502515215","https://openalex.org/W1504285927","https://openalex.org/W1520961854","https://openalex.org/W1824799905","https://openalex.org/W1950123153","https://openalex.org/W1968753754","https://openalex.org/W1974232202","https://openalex.org/W1989559179","https://openalex.org/W2005359691","https://openalex.org/W2012026386","https://openalex.org/W2018390443","https://openalex.org/W2020523963","https://openalex.org/W2029640224","https://openalex.org/W2063776575","https://openalex.org/W2081703502","https://openalex.org/W2107082099","https://openalex.org/W2109808455","https://openalex.org/W2110542534","https://openalex.org/W2116701005","https://openalex.org/W2123433847","https://openalex.org/W2128717407","https://openalex.org/W2137622193","https://openalex.org/W2139730834","https://openalex.org/W2145011089","https://openalex.org/W2146913174","https://openalex.org/W2150223783","https://openalex.org/W2153950928","https://openalex.org/W2156003674","https://openalex.org/W2162598060","https://openalex.org/W2167911131","https://openalex.org/W2168592693","https://openalex.org/W2168995864","https://openalex.org/W2169395663","https://openalex.org/W2241531943"],"related_works":["https://openalex.org/W2363983170","https://openalex.org/W2270181498","https://openalex.org/W4312978203","https://openalex.org/W2376330853","https://openalex.org/W4232879103","https://openalex.org/W3103471182","https://openalex.org/W1581225847","https://openalex.org/W2151783366","https://openalex.org/W4234217599","https://openalex.org/W4256686968"],"abstract_inverted_index":{"This":[0],"paper":[1],"focuses":[2],"on":[3,177],"memory":[4,122,139],"addressing":[5],"environments\\n\\nthat":[6],"support":[7],"the":[8,16,56,59,69,89,126,156,174,183],"notion":[9],"of":[10,18,25,36,43,58,68,146,155,168,190],"a":[11,26,66,85,95,102],"single":[12,103],"address":[13],"space.\\n\\nWe":[14],"consider":[15],"problem":[17],"hampering":[19],"access":[20,44,98,107],"attempts":[21],"to\\n\\nthe":[22],"private":[23,138],"objects":[24],"given":[27],"thread,":[28],"when":[29],"these":[30],"attempts\\n\\nare":[31],"generated":[32],"by":[33],"unauthorized":[34],"threads":[35],"different\\n\\nprocesses.":[37],"We":[38],"introduce":[39],"two":[40],"different":[41],"forms":[42],"privilege\\n\\nrepresentation":[45],"-":[46,50],"handles":[47,147],"and":[48,148,161,187],"gates":[49,129],"which":[51,100,165,180],"are":[52,110,130,194],"designed\\n\\nto":[53],"coexist":[54],"within":[55],"boundaries":[57],"same":[60],"protection":[61,142,170],"system.\\n\\nThe":[62],"handle":[63,74],"concept":[64],"is":[65,94,166],"generalization":[67],"classical\\n\\nprotected":[70],"pointer":[71],"concept.":[72],"A":[73,92],"associates":[75],"several":[76],"keys\\n\\n(passwords)":[77],"with":[78,196],"an":[79],"object":[80,162],"name.":[81],"Each":[82],"key":[83,185],"grants":[84],"specific\\n\\naccess":[86],"right":[87,159],"to":[88,105,152,172],"named":[90],"object.":[91],"gate":[93],"compact":[96],"representation\\n\\nof":[97],"privileges,":[99],"uses":[101],"bit":[104],"encode\\n\\nan":[106],"right.":[108],"Handles":[109],"protected":[111],"from":[112,182],"forgery":[113],"by\\n\\nkey":[114],"sparseness.":[115],"They":[116],"can":[117],"be":[118,134],"freely":[119],"mixed":[120],"in":[121,137],"with\\n\\nordinary":[123],"data.":[124],"On":[125],"other":[127],"hand,":[128],"sensitive":[131],"data\\n\\nthat":[132],"must":[133],"kept":[135],"segregated":[136],"regions":[140],"of\\n\\nthe":[141],"system.":[143],"The":[144],"dualism":[145],"gates\\n\\nmakes":[149],"it":[150],"possible":[151],"take":[153],"advantage":[154],"simplicity":[157],"of\\n\\naccess":[158],"distribution":[160],"sharing":[163],"between\\n\\nthreads,":[164],"characteristic":[167],"key-based":[169],"systems,\\n\\nand":[171],"avoid":[173],"negative":[175],"impact":[176],"overall":[178],"system\\n\\nperformance,":[179],"results":[181],"large":[184],"size":[186],"the\\n\\nhigh":[188],"costs":[189],"lengthy":[191],"processing":[192],"that":[193],"connected":[195],"key\\n\\nvalidation.":[197]},"counts_by_year":[],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}