The use of fingerprint continues to increase constantly with the propagation of biometric authentication technologies. Fingerprint is today the most widely used biometric modality for human verification and identification, due to its practical use and its discriminative structure that allows to different identities to be easily distinguished. Unfortunately, this emergence has been accompanied by a number of problems and challenges related to identity theft and to security issues in general. To address these concerns, many approaches have been proposed in which only few of them were able to reach an acceptable level of both security and performance. In this paper, we propose a new fingerprint template protection scheme that enhances the security of protected system while preserving performance. The proposed approach is a minutiae-based technique that performs fingerprint matching in a transformed space using irreversible minutiae tetrahedrons. Using the original Fingerprint Verification Competition (FVC) protocol, the provided experimental results on FVC2002 DB1, DB2 and DB3 fingerprint databases have shown satisfactory recognition rates. Our results are compared to some existing techniques that use the same protocol of test. We have proved as well that the proposed scheme meets the requirements of revocability, unlinkability and irreversibility.

中文翻译：

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使用不可逆细节四面体的指纹模板保护

随着生物特征认证技术的普及，指纹的使用不断增加。指纹是当今用于人类验证和识别的最广泛使用的生物识别方式，因为它的实际用途和它的区分结构允许轻松区分不同的身份。不幸的是，这种出现伴随着许多与身份盗窃和一般安全问题相关的问题和挑战。为了解决这些问题，已经提出了许多方法，其中只有少数能够达到可接受的安全性和性能水平。在本文中，我们提出了一种新的指纹模板保护方案，该方案在保持性能的同时增强了受保护系统的安全性。所提出的方法是一种基于细节的技术，它使用不可逆的细节四面体在变换空间中执行指纹匹配。使用原始指纹验证竞赛（FVC）协议，在 FVC2002 DB1、DB2 和 DB3 指纹数据库上提供的实验结果显示出令人满意的识别率。我们的结果与使用相同测试协议的一些现有技术进行了比较。我们也证明了所提出的方案满足可撤销性、不可链接性和不可逆性的要求。我们的结果与使用相同测试协议的一些现有技术进行了比较。我们也证明了所提出的方案满足可撤销性、不可链接性和不可逆性的要求。我们的结果与使用相同测试协议的一些现有技术进行了比较。我们也证明了所提出的方案满足可撤销性、不可链接性和不可逆性的要求。