{"updated":"2025-01-21T13:28:17.379707+00:00","metadata":{"_oai":{"id":"oai:ipsj.ixsq.nii.ac.jp:00096051","sets":["581:7002:7311"]},"path":["7311"],"owner":"11","recid":"96051","title":["Fuzzy Commitment Schemeを用いたバイオメトリック暗号における保護テンプレートの安全性評価"],"pubdate":{"attribute_name":"公開日","attribute_value":"2013-11-15"},"_buckets":{"deposit":"dc4641b7-0f3a-4ddb-beaf-493e17bfec1f"},"_deposit":{"id":"96051","pid":{"type":"depid","value":"96051","revision_id":0},"owners":[11],"status":"published","created_by":11},"item_title":"Fuzzy Commitment Schemeを用いたバイオメトリック暗号における保護テンプレートの安全性評価","author_link":["0","0"],"item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Fuzzy Commitment Schemeを用いたバイオメトリック暗号における保護テンプレートの安全性評価"},{"subitem_title":"Evaluation of Security for Protected Template in Biometric Cryptosystem Using Fuzzy Commitment Scheme","subitem_title_language":"en"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"[一般論文(推薦論文)] テンプレート保護型生体認証，Fuzzy Commitment Scheme，推定攻撃，安全性評価","subitem_subject_scheme":"Other"}]},"item_type_id":"2","publish_date":"2013-11-15","item_2_text_3":{"attribute_name":"著者所属","attribute_value_mlt":[{"subitem_text_value":"早稲田大学理工学術院"},{"subitem_text_value":"産業技術総合研究所セキュアシステム研究部門"},{"subitem_text_value":"株式会社日立製作所横浜研究所"}]},"item_2_text_4":{"attribute_name":"著者所属(英)","attribute_value_mlt":[{"subitem_text_value":"Faculty of Science and Engineering, Waseda University","subitem_text_language":"en"},{"subitem_text_value":"Research Institute for Secure Systems, National Institute of Advanced Industrial Science and Technology","subitem_text_language":"en"},{"subitem_text_value":"Yokohama Research Laboratory, Hitachi, Ltd.","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/96051/files/IPSJ-JNL5411005.pdf"},"date":[{"dateType":"Available","dateValue":"2015-11-15"}],"format":"application/pdf","billing":["billing_file"],"filename":"IPSJ-JNL5411005.pdf","filesize":[{"value":"547.4 kB"}],"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":"f5e510e8-4f1f-4652-aeb4-e5dc38b95e5f","displaytype":"detail","licensetype":"license_note","license_note":"Copyright (c) 2013 by the Information Processing Society of Japan"}]},"item_2_creator_5":{"attribute_name":"著者名","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"披田野, 清良"},{"creatorName":"大木, 哲史"},{"creatorName":"高橋, 健太"}],"nameIdentifiers":[{}]}]},"item_2_creator_6":{"attribute_name":"著者名(英)","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"Seira, Hidano","creatorNameLang":"en"},{"creatorName":"Tetsushi, Ohki","creatorNameLang":"en"},{"creatorName":"Kenta, Takahashi","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":"ここ10年あまりにわたり，生体情報を秘匿して認証を行うテンプレート保護型生体認証が注目されている．しかしながら，それらの安全性に関する議論では，生体情報間の相関性により，当該情報量が減少し，保護テンプレートが漏洩した際に，生体情報の推定が容易となる可能性については必ずしも十分に言及されていない．そこで，本論文では，テンプレート保護型生体認証の一方式であるFuzzy Commitment Scheme（FCS）を用いたバイオメトリック暗号に着目し，生体情報間の相関性を考慮して保護テンプレートの安全性を評価する．FCSでは，ユーザが提示する生体情報から生成されたビット列と誤り訂正符号の符号語との排他的論理和を計算してコミットメントを作成し，これを保護テンプレートとすることにより安全性を確保している．本論文では，まず，ビット間に相関性の残る可能性が高い指紋情報に着目し，筆者らが提案する2次のRenyiエントロピーを用いた生体情報の情報量評価手法に基づき，実際に指紋ビット列のビット間には何らかの相関性があることを明らかにする．次いで，生体ビット列のビット間の相関性を利用したなりすましに関する新たな脅威としてDecodable Biometric Dictionary Attack（DBDA）を提案し，DBDAに対する安全性を理論的に考察するとともに，シミュレーション結果を交えて定量的に評価する．","subitem_description_type":"Other"}]},"item_2_description_8":{"attribute_name":"論文抄録(英)","attribute_value_mlt":[{"subitem_description":"Biometric authentication based template protection has attracted attention in the past decade. However, in the discussion on the security of these systems, the content of biometric information is assumed to be sufficiently large and it has not been considered that genuine biometric information can be easily guessed from a compromised protected template due to the correlation between biometric samples. In this paper, we thus focus on the biometric cryptosystem using a fuzzy commitment scheme and evaluate the security of the protected template with consideration of the correlation between biometric samples. The FCS creates a commitment by binding a biometric bit string, which is generated from biometric samples a user presents, with a codeword of an error-correction code by using a bitwise XOR operator and stores the commitment in the system as a protected template. It is firstly demonstrated in this paper that there is any correlation between bits on a fingerprint bit string by evaluating information content in a fingerprint bit string on the basis of an evaluation method using quadratic Renyi entropy. Additionally, a decodable biometric dictionary attack (DBDA), which is an impersonation attack taking advantage of the correlation, are proposed and the security against the DBDA is theoretically and empirically discussed.","subitem_description_type":"Other"}]},"item_2_biblio_info_10":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicPageEnd":"2391","bibliographic_titles":[{"bibliographic_title":"情報処理学会論文誌"}],"bibliographicPageStart":"2383","bibliographicIssueDates":{"bibliographicIssueDate":"2013-11-15","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"11","bibliographicVolumeNumber":"54"}]},"relation_version_is_last":true,"weko_creator_id":"11"},"created":"2025-01-18T23:43:00.448990+00:00","id":96051,"links":{}}