Presentation 2020-03-02
Vulnerability investigation of speaker verification against black-box adversarial attacks
Hiroto Kai, Sayaka Shiota, Hitoshi Kiya,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) Recently,vulnerability against adversarial attacks is being feared for machine learning-based systems.Adversarial attacks are aimed to intentionally change results of systems based on machine learning algorithms. Data which a small noise is added to an original speech are called perturbation. The perturbation is estimated by using adversarial structured neural networks, and the generated data are almost indistinguishable by a human when compared to the original data. Biometric authentication systems which are used as a primarily means for user authentication in applications like internet banking and online shopping are also pointed out in terms of vulnerability against such adversarial attacks. The same can be said for speaker verification (SV), one of the biometric authentication,however its robustness has not been indicated experimentally. Therefore,we investigated the change in accuracy when attacking a system where the internal design is unexpected using adversarial attacks.In our experiments,we have evaluated the results when inputting generated adversarial examples and audios mixed with white noise to SV systems,and analyzed the vulnerability of speaker verification against adversarial attacks.From the results, the performances of SV systems became worse when the generated adversarial examples were inputted, compared with audio with white noise were inputted.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) adversarial attack / speaker verification / black-box attack
Paper # EA2019-106,SIP2019-108,SP2019-55
Date of Issue 2020-02-24 (EA, SIP, SP)

Conference Information
Committee SP / EA / SIP
Conference Date 2020/3/2(2days)
Place (in Japanese) (See Japanese page)
Place (in English) Okinawa Industry Support Center
Topics (in Japanese) (See Japanese page)
Topics (in English)
Chair Hisashi Kawai(NICT) / Kenichi Furuya(Oita Univ.) / Naoyuki Aikawa(TUS)
Vice Chair Akinobu Ri(Nagoya Inst. of Tech.) / Suehiro Shimauchi(Kanazawa Inst. of Tech.) / Shigeto Takeoka(Shizuoka Inst. of Science and Tech.) / Kazunori Hayashi(Osaka City Univ) / Yukihiro Bandou(NTT)
Secretary Akinobu Ri(Kyoto Univ.) / Suehiro Shimauchi(Waseda Univ.) / Shigeto Takeoka(NHK) / Kazunori Hayashi(Univ. of Tokyo) / Yukihiro Bandou(Hiroshima Univ.)
Assistant Tomoki Koriyama(Univ. of Tokyo) / Yusuke Ijima(NTT) / Keisuke Imoto(Ritsumeikan Univ.) / Daisuke Morikawa(Toyama Pref Univ.) / Kenjiro Sugimoto(Waseda Univ.)

Paper Information
Registration To Technical Committee on Speech / Technical Committee on Engineering Acoustics / Technical Committee on Signal Processing
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Vulnerability investigation of speaker verification against black-box adversarial attacks
Sub Title (in English)
Keyword(1) adversarial attack
Keyword(2) speaker verification
Keyword(3) black-box attack
1st Author's Name Hiroto Kai
1st Author's Affiliation Tokyo Metropolitan University(TMU)
2nd Author's Name Sayaka Shiota
2nd Author's Affiliation Tokyo Metropolitan University(TMU)
3rd Author's Name Hitoshi Kiya
3rd Author's Affiliation Tokyo Metropolitan University(TMU)
Date 2020-03-02
Paper # EA2019-106,SIP2019-108,SP2019-55
Volume (vol) vol.119
Number (no) EA-439,SIP-440,SP-441
Page pp.pp.29-33(EA), pp.29-33(SIP), pp.29-33(SP),
#Pages 5
Date of Issue 2020-02-24 (EA, SIP, SP)