Secure Voice Processing Systems Against Malicious Voice Attacks
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Secure Voice Processing Systems against Malicious Voice Attacks
This book provides readers with the basic understanding regarding the threats to the voice processing systems, the state-of-the-art defense methods as well as the current research results on securing voice processing systems.It also introduces three mechanisms to secure the voice processing systems against malicious voice attacks under different scenarios, by utilizing time-domain signal waves, frequency-domain spectrum features, and acoustic physical attributes. First, the authors uncover the modulated replay attack, which uses an inverse filter to compensate for the spectrum distortion caused by the replay attacks to bypass the existing spectrum-based defenses. The authors also provide an effective defense method that utilizes both the time-domain artifacts and frequency-domain distortion to detect the modulated replay attacks. Second, the book introduces a secure automatic speech recognition system for driverless car to defeat adversarial voice command attacks launched from car loudspeakers, smartphones, and passengers. Third, it provides an acoustic compensation system design to reduce the effects from the spectrum reduction attacks, by the audio spectrum compensation and acoustic propagation principle. Finally, the authors conclude with their research effort on defeating the malicious voice attacks and provide insights into more secure voice processing systems. This book is intended for security researchers, computer scientists, and electrical engineers who are interested in the research areas of biometrics, speech signal processing, IoT security, and audio security. Advanced-level students who are studying these topics will benefit from this book as well.
Voice Print Security
Voice Print Security explores the science behind using unique voice characteristics for secure identification in an increasingly digital world. It examines how voice biometrics captures and analyzes speech to create robust authentication systems, offering an alternative to traditional passwords. The book highlights intriguing facts, such as how voice biometrics evolved from speech recognition research and how feature extraction techniques like acoustic and spectral analysis are used to create biometric templates. This technology strives to overcome challenges like advanced recording techniques and speech synthesis. The book progresses logically, starting with core concepts and moving through feature extraction and matching algorithms. It then delves into real-world applications like banking and healthcare, while also addressing vulnerabilities to fraud. What sets this book apart is its balanced assessment, providing a pragmatic view of both the capabilities and limitations of voice biometrics. Understanding the inherent challenges and countermeasures is important for a successful voice-based authentication deployment. By bridging computer science, signal processing, and cybersecurity, Voice Print Security offers a comprehensive understanding of this interdisciplinary field. It provides readers with the knowledge to make informed decisions about implementing voice biometrics, acknowledging both its potential benefits and ongoing debates surrounding security and privacy.
Information Security Applications
This book constitutes the thoroughly refereed post-conference proceedings of the 19th International Conference on Information Security Applications, WISA 2018, held on Jeju Island, Korea, in August 2018. The 11 revised full papers and 11 short papers presented in this volume were carefully reviewed and selected from 44 submissions. #The primary focus of WISA 2018 was on systems and network security including all other technical and practical aspects of security applications and also on the embedded, unmanned or autonomous systems and cyber physical systems in general.