Fuzzy Vault scheme based on fixed-length templates applied to dynamic signature verification

As a consequence of the wide deployment of biometrics-based recognition systems, there are increasing concerns about the security of the sensitive information managed. Various techniques have been proposed in the literature for the biometric templates protection (BTP), having gained great popularity the crypto-biometric systems. In the present paper we propose the implementation of a Fuzzy Vault (FV) scheme based on fixed-length templates with application to dynamic signature verification (DSV), where only 15 global features of the signature are considered to form the templates. The performance of the proposed system is evaluated using three databases: a proprietary collection of signatures, and the publicly available databases MCYT and BioSecure. The experimental results show very similar verification performance compared to an equivalent unprotected system.This work was supported by the Spanish National Cybersecurity Institute (INCIBE) through the Excellence of Advanced Cybersecurity Research Teams Program

How to implement EU data protection regulation for R&D in biometrics

Biometrics R&D has to deal with personal data. From the Universal Declaration of Human Rights, privacy of a human being shall be protected, and this is addressed in different ways in each region of the world. In the case of the European Union, Data Protection Directives, Laws and Regulations have been established, and interpreted in different ways by each European Member State. Such a diversity has pushed the European Union to generate an improved regulation that will be mandatory from May 2018. Biometric R&D shall not only comply with the current Directive, but also has to adapt its work to the new Regulation. This work is intended to describe the situation and provide a recommended procedure when having to acquire personal data. The recommended procedure is illustrated by the implementation of a Biometric Data Acquisition Platform, used to acquire fingerprints from nearly 600 citizens using different sensors

Theoretical performance of the PF-GIPOF transfer function under different W-shaped refractive index profile designs

Proceeding of: 24th International Conference on Plastic Optical Fibers – ICPOF’15, Nuremberg (Germany), 22-24 September 2015The frequency response of PF-GIPOF with W-shaped refractive index profile is theoretically investigated. The proposed index profile incorporates a trench in the cladding region to tune the modal dispersion of outer groups.We focus on the effect of this design on the PF-GIPOF baseb and band width. The relationship between new index profiles and a high-bandwidth fiber condition is highlighted in order to increase the maximum achievable aggregated transmission capacity over PF-GIPOFs.This work was supported by the Spanish Ministry of Economia y Competitividad under grant TEC2012-37983-C03-02 and by the Comunidad de Madrid under grant S2013/MIT-2790

Search for dark matter produced in association with bottom or top quarks in √s = 13 TeV pp collisions with the ATLAS detector

A search for weakly interacting massive particle dark matter produced in association with bottom or top quarks is presented. Final states containing third-generation quarks and miss- ing transverse momentum are considered. The analysis uses 36.1 fb−1 of proton–proton collision data recorded by the ATLAS experiment at √s = 13 TeV in 2015 and 2016. No significant excess of events above the estimated backgrounds is observed. The results are in- terpreted in the framework of simplified models of spin-0 dark-matter mediators. For colour- neutral spin-0 mediators produced in association with top quarks and decaying into a pair of dark-matter particles, mediator masses below 50 GeV are excluded assuming a dark-matter candidate mass of 1 GeV and unitary couplings. For scalar and pseudoscalar mediators produced in association with bottom quarks, the search sets limits on the production cross- section of 300 times the predicted rate for mediators with masses between 10 and 50 GeV and assuming a dark-matter mass of 1 GeV and unitary coupling. Constraints on colour- charged scalar simplified models are also presented. Assuming a dark-matter particle mass of 35 GeV, mediator particles with mass below 1.1 TeV are excluded for couplings yielding a dark-matter relic density consistent with measurements