{"updated":"2025-01-20T12:17:28.070459+00:00","links":{},"metadata":{"_oai":{"id":"oai:ipsj.ixsq.nii.ac.jp:00160490","sets":["1164:4088:8487:8689"]},"path":["8689"],"owner":"11","recid":"160490","title":["効率の良い秘密分散断片の誤り位置特定および訂正プロトコル"],"pubdate":{"attribute_name":"公開日","attribute_value":"2016-05-19"},"_buckets":{"deposit":"bd071b0c-24db-4112-92ef-5089f5948d07"},"_deposit":{"id":"160490","pid":{"type":"depid","value":"160490","revision_id":0},"owners":[11],"status":"published","created_by":11},"item_title":"効率の良い秘密分散断片の誤り位置特定および訂正プロトコル","author_link":["310718","310719","310722","310723","310727","310721","310724","310726","310725","310720"],"item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"効率の良い秘密分散断片の誤り位置特定および訂正プロトコル"},{"subitem_title":"An Efficient Technique for Specifying Error Locations and Correcting the Errors in Secretly-Shared Data","subitem_title_language":"en"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"秘密計算・高機能暗号","subitem_subject_scheme":"Other"}]},"item_type_id":"4","publish_date":"2016-05-19","item_4_text_3":{"attribute_name":"著者所属","attribute_value_mlt":[{"subitem_text_value":"NTTセキュアプラットフォーム研究所"},{"subitem_text_value":"NTTセキュアプラットフォーム研究所"},{"subitem_text_value":"NTTセキュアプラットフォーム研究所"},{"subitem_text_value":"NTTセキュアプラットフォーム研究所"},{"subitem_text_value":"NTTセキュアプラットフォーム研究所"}]},"item_4_text_4":{"attribute_name":"著者所属(英)","attribute_value_mlt":[{"subitem_text_value":"NTT Secure Platform Laboratories","subitem_text_language":"en"},{"subitem_text_value":"NTT Secure Platform Laboratories","subitem_text_language":"en"},{"subitem_text_value":"NTT Secure Platform Laboratories","subitem_text_language":"en"},{"subitem_text_value":"NTT Secure Platform Laboratories","subitem_text_language":"en"},{"subitem_text_value":"NTT Secure Platform 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etc."}]},"item_resource_type":{"attribute_name":"資源タイプ","attribute_value_mlt":[{"resourceuri":"http://purl.org/coar/resource_type/c_18gh","resourcetype":"technical report"}]},"item_4_source_id_11":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"2188-8787","subitem_source_identifier_type":"ISSN"}]},"item_4_description_7":{"attribute_name":"論文抄録","attribute_value_mlt":[{"subitem_description":"秘密分散に基づく秘密計算は，複数のサーバに元データから生成した断片を分散保管し，各サーバが協調して演算を行うことで，元データを秘匿したまま演算結果だけを出力することができる．しかし，通信障害等により，あるサーバが持つ断片と他のサーバが持つ断片に不整合が発生した場合，利用者に正しい計算結果を返すことができなくなる．また，データの不整合を確認するために，断片を集めてしまうと元データの秘匿性が保てないという課題がある．そこで本研究では元データを秘匿したまま不整合の発生した断片を特定し，復旧する方式を提案する．　従来の断片不整合検出手法は，断片の集合における不整合の有無のみを出力するものであった．この手法で不整合の位置を特定するためには，二分探索を繰り返し不整合の有無を調べて位置を特定するため，多くの通信と計算が発生する．これに対して，提案方式では，誤り位置と値を出力可能な符号理論を秘密計算に適用し，二分探索を不要にすることで，通信量・計算量の削減を実現した．提案方式を適用することで，復旧時にサーバ間でやり取りするデータ量を約 80%削減するなど処理の効率化に貢献することができる．","subitem_description_type":"Other"}]},"item_4_biblio_info_10":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicPageEnd":"7","bibliographic_titles":[{"bibliographic_title":"研究報告インターネットと運用技術（IOT）"}],"bibliographicPageStart":"1","bibliographicIssueDates":{"bibliographicIssueDate":"2016-05-19","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"19","bibliographicVolumeNumber":"2016-IOT-33"}]},"relation_version_is_last":true,"weko_creator_id":"11"},"id":160490,"created":"2025-01-19T00:33:23.971352+00:00"}