With large-scale adaption to biometric based applications, security and privacy of biometrics is utmost important especially when operating in unsupervised online mode. This work proposes a novel approach for generating new artificial fingerprints also called proxy fingerprints that are natural looking, non-invertible, revocable and privacy preserving. These proxy biometrics can be generated from original ones only with the help of a user-specific key. Instead of using the original fingerprint, these proxy templates can be used anywhere with same convenience. The manuscripts walks through an interesting way in which proxy fingerprints of different types can be generated and how they can be combined with use-specific keys to provide revocability and cancelability in case of compromise. Using the proposed approach a proxy dataset is generated from samples belonging to Anguli fingerprint database. Matching experiments were performed on the new set which is 5 times larger than the original, and it was found that their performance is at par with 0 FAR and 0 FRR in the stolen key, safe key scenarios. Other parameters on revocability and diversity are also analyzed for protection performance.
翻译:由于大规模地适应生物鉴别应用,生物鉴别技术的安全和隐私至关重要,特别是在以不受监督的在线模式运作时。 这项工作提出了一个新的方法, 生成新的人工指纹, 也称为自然外观、不可忽略、可撤销和隐私保护的代理指纹。 这些代理生物鉴别技术只能由原始指纹产生, 只能由用户专用钥匙帮助制作。 这些代理模板可以使用原始指纹, 而不是在任何地点使用相同的方便性。 手稿可以以一种有趣的方式生成不同类型的代理指纹, 以及如何与特定使用钥匙相结合, 以便在出现折中的情况下提供可撤销性和可取消性。 使用拟议方法, 代理数据集是从属于安古利指纹数据库的样本中生成的。 在比原始指纹大5倍的新数据集上进行了匹配实验, 发现其性能与被盗钥匙中的0 FAR和0 FRR相当, 安全关键情景中, 为保护性工作还分析了关于可撤销性和多样性的其他参数。