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Funding Information: This work is supported in part by the National Natural Science Foundation of China under Grant 62072351 ; in part by the Academy of Finland under Grant 308087 , Grant 335262 , Grant 345072 and Grant 350464 ; in part by the Open research project of ZheJiang Lab under grant 2021PD0AB01 ; in part by the Shaanxi Innovation Team Project under Grant 2018 TD-007; and in part by the 111 Project, China under Grant B16037 . Publisher Copyright: © 2022 Elsevier B.V. Speaker recognition has become very popular in many application scenarios, such as smart homes and smart assistants, due to ease of use for remote control and economic-friendly features. The rapid development of SRSs is inseparable from the advancement of machine learning, especially neural networks. However, previous work has shown that machine learning models are vulnerable to adversarial attacks in the image domain, which inspired researchers to explore adversarial attacks and defenses in Speaker Recognition Systems (SRS). Unfortunately, existing literature lacks a thorough review of this topic. In this paper, we fill this gap by performing a comprehensive survey on adversarial attacks and defenses in SRSs. We first introduce the basics of SRSs and concepts related to adversarial attacks. Then, we propose two sets of criteria to evaluate the performance of attack methods and defense methods in SRSs, respectively. After that, we provide taxonomies of existing attack methods and defense methods, and further review them by employing our proposed criteria. Finally, based on our review, we find some open issues and further specify a number of future directions to motivate the research of SRSs security. |
