{"id":98811,"updated":"2025-01-21T12:18:29.258591+00:00","links":{},"created":"2025-01-18T23:44:58.906280+00:00","metadata":{"_oai":{"id":"oai:ipsj.ixsq.nii.ac.jp:00098811","sets":["1164:2836:7475:7476"]},"path":["7476"],"owner":"11","recid":"98811","title":["SNOW NOISE CAPTCHA: 無意味な情報を利用した動画CAPTCHAの提案"],"pubdate":{"attribute_name":"公開日","attribute_value":"2014-02-27"},"_buckets":{"deposit":"0b9d3f4a-8b36-4c1b-8bc9-0dc871a54a64"},"_deposit":{"id":"98811","pid":{"type":"depid","value":"98811","revision_id":0},"owners":[11],"status":"published","created_by":11},"item_title":"SNOW NOISE CAPTCHA: 無意味な情報を利用した動画CAPTCHAの提案","author_link":["0","0"],"item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"SNOW NOISE CAPTCHA: 無意味な情報を利用した動画CAPTCHAの提案"},{"subitem_title":"SNOW NOISE CAPTCHA: A Proposal of Movie-based CAPTCHA using Meaningless Information","subitem_title_language":"en"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"バイオメトリクス・認証","subitem_subject_scheme":"Other"}]},"item_type_id":"4","publish_date":"2014-02-27","item_4_text_3":{"attribute_name":"著者所属","attribute_value_mlt":[{"subitem_text_value":"静岡大学情報学部情報科学科"},{"subitem_text_value":"静岡大学大学院情報学研究科"},{"subitem_text_value":"静岡大学大学院情報学研究科"},{"subitem_text_value":"静岡大学大学院情報学研究科"},{"subitem_text_value":"静岡大学大学院情報学研究科"},{"subitem_text_value":"静岡大学大学院情報学研究科"}]},"item_4_text_4":{"attribute_name":"著者所属(英)","attribute_value_mlt":[{"subitem_text_value":"Department of Computer Science, Faculty of Informatics, Shizuoka University","subitem_text_language":"en"},{"subitem_text_value":"Graduate school of Informatics, Shizuoka University","subitem_text_language":"en"},{"subitem_text_value":"Graduate school of Informatics, Shizuoka University","subitem_text_language":"en"},{"subitem_text_value":"Graduate school of Informatics, Shizuoka University","subitem_text_language":"en"},{"subitem_text_value":"Graduate school of Informatics, Shizuoka University","subitem_text_language":"en"},{"subitem_text_value":"Graduate school of Informatics, Shizuoka 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/98811/files/IPSJ-DPS14158029.pdf"},"date":[{"dateType":"Available","dateValue":"2016-02-27"}],"format":"application/pdf","billing":["billing_file"],"filename":"IPSJ-DPS14158029.pdf","filesize":[{"value":"1.4 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":"91c5049e-fb4f-40e3-b9af-cc0ad9024966","displaytype":"detail","licensetype":"license_note","license_note":"Copyright (c) 2014 by the Information Processing Society of Japan"}]},"item_4_creator_5":{"attribute_name":"著者名","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"グエンスアンギア"},{"creatorName":"藤田, 真浩"},{"creatorName":"池谷, 勇樹"},{"creatorName":"米山, 裕太"},{"creatorName":"可児, 潤也"},{"creatorName":"西垣, 正勝"}],"nameIdentifiers":[{}]}]},"item_4_creator_6":{"attribute_name":"著者名(英)","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"Nguyen, XuanNghia","creatorNameLang":"en"},{"creatorName":"Masahiro, Fujita","creatorNameLang":"en"},{"creatorName":"Yuki, Ikeya","creatorNameLang":"en"},{"creatorName":"Yuta, Yoneyama","creatorNameLang":"en"},{"creatorName":"Junya, Kani","creatorNameLang":"en"},{"creatorName":"Masakatsu, Nishigaki","creatorNameLang":"en"}],"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_description_7":{"attribute_name":"論文抄録","attribute_value_mlt":[{"subitem_description":"既存の CAPTCHA の多くは，文字，静止画，動画など，意味を有する情報 （有形物） を難読化するというアプローチで設計されている．しかし，マルウェアの攻撃技術が急速に発達しており，このような既存の CAPTCHA は限界を迎えている．この問題を解決するため，ゲシュタルト心理学における 「共通運命の法則」 を利用することで，無意味な情報 （ランダムドット） の中からその都度意味を生成するという新たなアプローチに基づいた動画 CAPTCHA 「SNOW NOISECAPTCHA」 を提案する．提案方式では，マルウェアが動画中の意味を検出した時には，意味が変化しているという特徴を持つため，マルウェアによる解答は困難である．また，無意味な情報を利用しているため，総当たり攻撃に対する高い耐性を持つ．回答のタイミングをサーバにいかに伝えるかが課題である．","subitem_description_type":"Other"}]},"item_4_description_8":{"attribute_name":"論文抄録(英)","attribute_value_mlt":[{"subitem_description":"There are many existing CAPTCHAs like text-based CAPTCHA, image-based CAPTCHA and movie-based CAPTCHA that are generated by obfuscating the meaning information (like material objects) to protect web services from automated attack by malware. However, as the technique of malware is developing rapidly day by day, it is predicted that the existing CAPTCHAs are coming to limit. To solve the problem, we present SNOW NOISE CAPTCHA, a movie-based CAPTCHA that using the Gestalt Theory of Principal of Common Fate to generate meaning information from meaningless information (random dots). In the proposed system, as the meaning information will be changed while malware is detecting meaning information from movie CAPTCHA, malware hardly unlocks CAPTCHA. In addition, because of using the meaningless information, it is expected that SNOW NOISE CAPTCHA has a high tolerance with the brute-force attack. However, there is still the problem that is how to send the timing of the client answer to the server.","subitem_description_type":"Other"}]},"item_4_biblio_info_10":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicPageEnd":"7","bibliographic_titles":[{"bibliographic_title":"研究報告マルチメディア通信と分散処理（DPS）"}],"bibliographicPageStart":"1","bibliographicIssueDates":{"bibliographicIssueDate":"2014-02-27","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"29","bibliographicVolumeNumber":"2014-DPS-158"}]},"relation_version_is_last":true,"weko_creator_id":"11"}}