{"id":11508,"updated":"2025-01-23T02:10:23.318494+00:00","links":{},"created":"2025-01-18T22:46:07.196239+00:00","metadata":{"_oai":{"id":"oai:ipsj.ixsq.nii.ac.jp:00011508","sets":["581:664:669"]},"path":["669"],"owner":"1","recid":"11508","title":["スタンダードMIDIファイルステガノグラフィとその能力☆"],"pubdate":{"attribute_name":"公開日","attribute_value":"2002-08-15"},"_buckets":{"deposit":"89b5e04c-9843-409c-a060-df4cd5bb6626"},"_deposit":{"id":"11508","pid":{"type":"depid","value":"11508","revision_id":0},"owners":[1],"status":"published","created_by":1},"item_title":"スタンダードMIDIファイルステガノグラフィとその能力☆","author_link":["0","0"],"item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"スタンダードMIDIファイルステガノグラフィとその能力☆"},{"subitem_title":"Standard MIDI Files Steganography and Its Power","subitem_title_language":"en"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"特集：電子社会に向けたコンピュータセキュリティ技術","subitem_subject_scheme":"Other"}]},"item_type_id":"2","publish_date":"2002-08-15","item_2_text_3":{"attribute_name":"著者所属","attribute_value_mlt":[{"subitem_text_value":"横浜国立大学大学院工学研究科"},{"subitem_text_value":"横浜国立大学大学院工学研究科／横浜国立大学大学院環境情報研究院"}]},"item_2_text_4":{"attribute_name":"著者所属(英)","attribute_value_mlt":[{"subitem_text_value":"Graduate School of Engineering, Yokohama National University","subitem_text_language":"en"},{"subitem_text_value":"Graduate School of Engineering, Yokohama National University/Graduate School of Environment and Information Sciences, Yokohama National University","subitem_text_language":"en"}]},"item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"jpn"}]},"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/11508/files/IPSJ-JNL4308013.pdf"},"date":[{"dateType":"Available","dateValue":"2004-08-15"}],"format":"application/pdf","billing":["billing_file"],"filename":"IPSJ-JNL4308013.pdf","filesize":[{"value":"4.1 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":"8"},{"tax":["include_tax"],"price":"0","billingrole":"44"}],"accessrole":"open_date","version_id":"69ec345c-fba1-44cc-b100-c73f362a52a3","displaytype":"detail","licensetype":"license_note","license_note":"Copyright (c) 2002 by the Information Processing Society of Japan"}]},"item_2_creator_5":{"attribute_name":"著者名","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"井上, 大介"},{"creatorName":"松本, 勉"}],"nameIdentifiers":[{}]}]},"item_2_creator_6":{"attribute_name":"著者名(英)","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"Daisuke, Inoue","creatorNameLang":"en"},{"creatorName":"Tsutomu, Matsumoto","creatorNameLang":"en"}],"nameIdentifiers":[{}]}]},"item_2_source_id_9":{"attribute_name":"書誌レコードID","attribute_value_mlt":[{"subitem_source_identifier":"AN00116647","subitem_source_identifier_type":"NCID"}]},"item_resource_type":{"attribute_name":"資源タイプ","attribute_value_mlt":[{"resourceuri":"http://purl.org/coar/resource_type/c_6501","resourcetype":"journal article"}]},"item_2_source_id_11":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"1882-7764","subitem_source_identifier_type":"ISSN"}]},"item_2_description_7":{"attribute_name":"論文抄録","attribute_value_mlt":[{"subitem_description":"ステガノグラフィは真に伝えたい情報を見せかけの媒体の中に埋込み伝送すると いう方法で，通信行為の存在を秘匿することを目指す研究分野であり，画像，音声，テキストなど様々な媒体を用いたステガノグラフィ方式が研究され てきている．本論文では，楽曲の演奏データとして広く利用されているスタンダードMIDIファ イル（SMF）を媒体とするステガノグラフィ方式 ---SMFステガノグラフィ---  を提案し，それが媒体の演奏音をまったく変化させるこ となく，ファイルサイズに対して平均約1[%]の情報を埋込むことができる能力 を持つことを実験的に実証する．また，クォンタイズと呼ばれる音の時間情報 の操作を適用することで，SMFに埋込むことのできる情報量が向上することを実 証する．さらに，SMFステガノグラフィの安全性についての議論を行う．","subitem_description_type":"Other"}]},"item_2_description_8":{"attribute_name":"論文抄録(英)","attribute_value_mlt":[{"subitem_description":"Steganography aims to make communication invisible by hiding genuine information in innocuous cover object. Several steganographic schemes that use image, sound, text, etc. as cover object have been developed. In this paper, we describe the SMF steganography that enables the secret information to be concealed in standard MIDI files (SMFs) without changing their sound. To clarify the power of SMF steganography, we experimentally estimated the size of information that SMF can secretly hold for over 300 SMFs available in the Internet. We found that the average embedding rate, which is the percentage of embedded data to cover object, was about 1%. We also clarified that the quantize function, which aligns the timing of note events, increases the capacity of secret information. Moreover, we discussed the security of SMF steganography.","subitem_description_type":"Other"}]},"item_2_biblio_info_10":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicPageEnd":"2501","bibliographic_titles":[{"bibliographic_title":"情報処理学会論文誌"}],"bibliographicPageStart":"2489","bibliographicIssueDates":{"bibliographicIssueDate":"2002-08-15","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"8","bibliographicVolumeNumber":"43"}]},"relation_version_is_last":true,"item_2_alternative_title_2":{"attribute_name":"その他タイトル","attribute_value_mlt":[{"subitem_alternative_title":"電子透かし"}]},"weko_creator_id":"1"}}