ChaRVoC: A Challenge-Response Voice Cancelable Authentication System
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arXiv
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| Format: | Preprint |
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2026
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| author | Vo-Hoang, Phuc-Khang Ta, Hoang C. Le-Khac, Nhien-An Nguyen, Dinh-Thuc Nguyen-Le, Hong-Hanh |
| author_facet | Vo-Hoang, Phuc-Khang Ta, Hoang C. Le-Khac, Nhien-An Nguyen, Dinh-Thuc Nguyen-Le, Hong-Hanh |
| contents | In this work, we present a Challenge-Response Voice Cancelable authentication system, called ChaRVoC, which provides protection against replay attacks, revocability issues, and template compromise. Our approach integrates three security factors: (1) inherent voice biometric characteristics, (2) user-memorized secret keys enabling template revocability, and (3) dynamic system-generated challenges providing liveness detection. Specifically, we introduce a novel HashGray-XOR scheme which combines a cryptographic hash function with an unrecoverable graycode-based transformation to create secured templates that are mathematically proven to be non-invertible. We compare our methods with existing cancelable biometric methods (WTA, IoM, RoE) on VoxCeleb1, TIMIT, and VOiCES datasets to show the recognition performance of our proposed system. We also show that our system achieves both cancelability and unlinkability properties. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2605_02990 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | ChaRVoC: A Challenge-Response Voice Cancelable Authentication System Vo-Hoang, Phuc-Khang Ta, Hoang C. Le-Khac, Nhien-An Nguyen, Dinh-Thuc Nguyen-Le, Hong-Hanh Cryptography and Security In this work, we present a Challenge-Response Voice Cancelable authentication system, called ChaRVoC, which provides protection against replay attacks, revocability issues, and template compromise. Our approach integrates three security factors: (1) inherent voice biometric characteristics, (2) user-memorized secret keys enabling template revocability, and (3) dynamic system-generated challenges providing liveness detection. Specifically, we introduce a novel HashGray-XOR scheme which combines a cryptographic hash function with an unrecoverable graycode-based transformation to create secured templates that are mathematically proven to be non-invertible. We compare our methods with existing cancelable biometric methods (WTA, IoM, RoE) on VoxCeleb1, TIMIT, and VOiCES datasets to show the recognition performance of our proposed system. We also show that our system achieves both cancelability and unlinkability properties. |
| title | ChaRVoC: A Challenge-Response Voice Cancelable Authentication System |
| topic | Cryptography and Security |
| url | https://arxiv.org/abs/2605.02990 |