{"created":"2021-03-01T06:22:22.418542+00:00","id":5670,"links":{},"metadata":{"_buckets":{"deposit":"1b0f31f6-b81d-42d6-aae7-fd1059415b14"},"_deposit":{"id":"5670","owners":[],"pid":{"revision_id":0,"type":"depid","value":"5670"},"status":"published"},"_oai":{"id":"oai:repository.dl.itc.u-tokyo.ac.jp:00005670","sets":["6:209:271","9:233:234"]},"item_7_alternative_title_1":{"attribute_name":"その他のタイトル","attribute_value_mlt":[{"subitem_alternative_title":"クラウド記憶におけるキーワード検索のための安全な索引"}]},"item_7_biblio_info_7":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2014-09-26","bibliographicIssueDateType":"Issued"},"bibliographic_titles":[{}]}]},"item_7_date_granted_25":{"attribute_name":"学位授与年月日","attribute_value_mlt":[{"subitem_dategranted":"2014-09-26"}]},"item_7_degree_name_20":{"attribute_name":"学位名","attribute_value_mlt":[{"subitem_degreename":"修士(工学)"}]},"item_7_description_5":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"Our investigation challenge is designing an auxiliary data structure to support keyword lookups on encrypted documents stored in the cloud. We propose an extension of “Color Indexes”, a secure indexing technique introduced by Hore et al. The design utilizes false positive search results to hide sensitive information and allows users to adjust security level in trade-off with the performance by tuning system parameters. We focus mainly on improving practicality of the indexes on real world application, especially, analyzing and conducting experiments on the effects of skewed keyword distribution and document sizes. To handle skewed datasets, we recommend using a second level hash function to prevent information leakage from color statistic and using a sampling based technique for more accurate error prediction. The efficiency of our indexes is demonstrated in experiments on English Wikipedia, Reuter-21578, and Enron Email Corpus.","subitem_description_type":"Abstract"}]},"item_7_full_name_3":{"attribute_name":"著者別名","attribute_value_mlt":[{"nameIdentifiers":[{"nameIdentifier":"11788","nameIdentifierScheme":"WEKO"}],"names":[{"name":"タナキットルンアン, ワナシット"}]}]},"item_7_select_21":{"attribute_name":"学位","attribute_value_mlt":[{"subitem_select_item":"master"}]},"item_7_text_24":{"attribute_name":"研究科・専攻","attribute_value_mlt":[{"subitem_text_value":"工学系研究科・電気系工学専攻"}]},"item_7_text_4":{"attribute_name":"著者所属","attribute_value_mlt":[{"subitem_text_value":"東京大学大学院工学系研究科電気系工学専攻"},{"subitem_text_value":"Department of Electrical Engineering and Information Systems, Graduate School of Engineering, The University of Tokyo"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"Tanakitrungruang, Wanasit"}],"nameIdentifiers":[{"nameIdentifier":"11787","nameIdentifierScheme":"WEKO"}]}]},"item_files":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_date","date":[{"dateType":"Available","dateValue":"2017-06-01"}],"displaytype":"detail","filename":"37126949.pdf","filesize":[{"value":"2.0 MB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"37126949.pdf","url":"https://repository.dl.itc.u-tokyo.ac.jp/record/5670/files/37126949.pdf"},"version_id":"70e0620c-811b-4da8-8f01-9a0d18ad0bf0"}]},"item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"eng"}]},"item_resource_type":{"attribute_name":"資源タイプ","attribute_value_mlt":[{"resourcetype":"thesis","resourceuri":"http://purl.org/coar/resource_type/c_46ec"}]},"item_title":"Secure Indexes for Keyword Search in Cloud Storage","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Secure Indexes for Keyword Search in Cloud Storage"}]},"item_type_id":"7","owner":"1","path":["234","271"],"pubdate":{"attribute_name":"公開日","attribute_value":"2014-11-11"},"publish_date":"2014-11-11","publish_status":"0","recid":"5670","relation_version_is_last":true,"title":["Secure Indexes for Keyword Search in Cloud Storage"],"weko_creator_id":"1","weko_shared_id":null},"updated":"2022-12-19T03:47:13.546364+00:00"}