{"updated":"2025-01-20T03:15:29.694315+00:00","metadata":{"_oai":{"id":"oai:ipsj.ixsq.nii.ac.jp:00184579","sets":["1164:2836:9030:9291"]},"path":["9291"],"owner":"11","recid":"184579","title":["パスワード別送添付メールの問題点と受信側での対策について"],"pubdate":{"attribute_name":"公開日","attribute_value":"2017-11-22"},"_buckets":{"deposit":"4b861623-0fb9-44eb-b75a-6cf0a13d8d98"},"_deposit":{"id":"184579","pid":{"type":"depid","value":"184579","revision_id":0},"owners":[11],"status":"published","created_by":11},"item_title":"パスワード別送添付メールの問題点と受信側での対策について","author_link":["408039"],"item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"パスワード別送添付メールの問題点と受信側での対策について"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"アプリケーション","subitem_subject_scheme":"Other"}]},"item_type_id":"4","publish_date":"2017-11-22","item_4_text_3":{"attribute_name":"著者所属","attribute_value_mlt":[{"subitem_text_value":"岡山大学大学院自然科学研究科"}]},"item_4_text_4":{"attribute_name":"著者所属(英)","attribute_value_mlt":[{"subitem_text_value":"Graduate School of Natural Science and Technology, Okayama University","subitem_text_language":"en"}]},"item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"jpn"}]},"item_publisher":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"情報処理学会","subitem_publisher_language":"ja"}]},"publish_status":"0","weko_shared_id":-1,"item_file_price":{"attribute_name":"Billing file","attribute_type":"file","attribute_value_mlt":[{"url":{"url":"https://ipsj.ixsq.nii.ac.jp/record/184579/files/IPSJ-DPS17172017.pdf","label":"IPSJ-DPS17172017.pdf"},"date":[{"dateType":"Available","dateValue":"2019-11-22"}],"format":"application/pdf","billing":["billing_file"],"filename":"IPSJ-DPS17172017.pdf","filesize":[{"value":"1.1 MB"}],"mimetype":"application/pdf","priceinfo":[{"tax":["include_tax"],"price":"660","billingrole":"5"},{"tax":["include_tax"],"price":"330","billingrole":"6"},{"tax":["include_tax"],"price":"0","billingrole":"34"},{"tax":["include_tax"],"price":"0","billingrole":"44"}],"accessrole":"open_date","version_id":"8c162312-2845-46cf-8ab7-a604cefb04a9","displaytype":"detail","licensetype":"license_note","license_note":"Copyright (c) 2017 by the Information Processing Society of Japan"}]},"item_4_creator_5":{"attribute_name":"著者名","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"乃村, 能成"}],"nameIdentifiers":[{}]}]},"item_4_source_id_9":{"attribute_name":"書誌レコードID","attribute_value_mlt":[{"subitem_source_identifier":"AN10116224","subitem_source_identifier_type":"NCID"}]},"item_4_textarea_12":{"attribute_name":"Notice","attribute_value_mlt":[{"subitem_textarea_value":"SIG Technical Reports are nonrefereed and hence may later appear in any journals, conferences, symposia, 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":"2188-8906","subitem_source_identifier_type":"ISSN"}]},"item_4_description_7":{"attribute_name":"論文抄録","attribute_value_mlt":[{"subitem_description":"電子メールシステムは，歴史が長く枯れた技術であることから，相互運用性が高く，組織間の基本的な連絡手段として広く用いられている．電子メールで個人情報などの秘匿すべき情報を送信する際，暗号化された添付ファイルを送信し，共通鍵のパスワードを平文で別送することがよく行われている．本稿では，これをパスワード別送添付メールと呼び，パスワード別送添付メールの問題点を指摘する．また，問題点を受信側で解決する手法を提案する．提案手法は，暗号化されたメールに対応するパスワードメールとその中に含まれるパスワード文字列を効率よく発見し，パスワード解読を自動化する．さらに，提案手法を実装し，個人の電子メールシステムに組込み，運用した結果について評価する．評価では，多くのメールについて，数回のパスワード試行で解読が可能なことを示す．","subitem_description_type":"Other"}]},"item_4_biblio_info_10":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicPageEnd":"6","bibliographic_titles":[{"bibliographic_title":"研究報告マルチメディア通信と分散処理（DPS）"}],"bibliographicPageStart":"1","bibliographicIssueDates":{"bibliographicIssueDate":"2017-11-22","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"17","bibliographicVolumeNumber":"2017-DPS-172"}]},"relation_version_is_last":true,"weko_creator_id":"11"},"created":"2025-01-19T00:51:54.549423+00:00","id":184579,"links":{}}