Institut de Police Scientifique, School of Criminal Sciences, Batochime, University of Lausanne, CH-1015 Dorigny, Lausanne, Switzerland.
Forensic Sci Int. 2011 Jan 30;204(1-3):41-9. doi: 10.1016/j.forsciint.2010.05.002. Epub 2010 Jun 17.
The purpose of this research is to assess the vulnerabilities of a high resolution fingerprint sensor when confronted with fake fingerprints. The study has not been focused on the decision outcome of the biometric device, but essentially on the scores obtained following the comparison between a query (genuine or fake) and a template using an AFIS system. To do this, fake fingerprints of 12 subjects have been produced with and without their cooperation. These fake fingerprints have been used alongside with real fingers. The study led to three major observations: First, genuine fingerprints produced scores higher than fake fingers (translating a closer proximity) and this tendency is observed considering each subject separately. Second, scores are however not sufficient as a single measure to differentiate these samples (fake from genuine) given the variation due to the donors themselves. That explains why fingerprint readers without vitality detection can be fooled. Third, production methods and subjects greatly influence the scores obtained for fake fingerprints.
本研究旨在评估高分辨率指纹传感器在面对假指纹时的脆弱性。本研究的重点不是生物识别设备的决策结果，而是本质上是在使用 AFIS 系统对查询（真实或伪造）和模板进行比较后获得的分数。为此，在有和没有合作的情况下，为 12 个主体制作了假指纹。这些假指纹与真实手指一起使用。该研究得出了三个主要观察结果：首先，真实指纹产生的分数高于假指纹（表示更接近），并且这种趋势在分别考虑每个主体时都可以观察到。其次，由于供体自身的差异，分数本身不足以作为区分这些样本（假指纹与真指纹）的单一衡量标准。这就是为什么没有活力检测的指纹读取器可能会被愚弄的原因。第三，制作方法和主体对假指纹的分数有很大影响。
