11 citations · 13 across the 6 of their papers we have counts for
5 papers · 1 filter
BeCAPTCHA: Behavioral Bot Detection using Touchscreen and Mobile Sensors benchmarked on HuMIdb
Alejandro Acien, Aythami Morales, Julian Fierrez +2
In this paper we study the suitability of a new generation of CAPTCHA methods based on smartphone interactions. The heterogeneous flow of data generated during the interaction with…
Blockchain in the Internet of Things: Architectures and Implementation
Oscar Delgado-Mohatar, Ruben Tolosana, Julian Fierrez +1
The world is becoming more interconnected every day. With the high technological evolution and the increasing deployment of it in our society, scenarios based on the Internet of Th…
Biometric Template Storage with Blockchain: A First Look into Cost and Performance Tradeoffs
Oscar Delgado-Mohatar, Julian Fierrez, Ruben Tolosana +1
We explore practical tradeoffs in blockchain-based biometric template storage. We first discuss opportunities and challenges in the integration of blockchain and biometrics, with e…
Blockchain and Biometrics: A First Look into Opportunities and Challenges
Oscar Delgado-Mohatar, Julian Fierrez, Ruben Tolosana +1
Blockchain technology has become a thriving topic in the last years, making possible to transform old-fashioned operations to more fast, secured, and cheap approaches. In this stud…
Linear Cellular Automata as Discrete Models for Generating Cryptographic Sequences
Pino Caballero-Gil, Amparo Fúster-Sabater, Oscar Delgado-Mohatar
In this paper, we develop a new cellular automata-based linear model for several nonlinear pseudorandom number generators with practical applications in symmetric cryptography. Suc…