Introduction to Presentation Attacks in Signature Biometrics and Recent Advances
It addresses security vulnerabilities in biometric authentication systems for applications relying on signature verification, though it is incremental as it reviews and standardizes existing methods.
This chapter analyzes presentation attack scenarios in online handwritten signature verification, providing an updated overview of detection methods and evaluating system performance using recent public databases like DeepSignDB and SVC2021_EvalDB.
Applications based on biometric authentication have received a lot of interest in the last years due to the breathtaking results obtained using personal traits such as face or fingerprint. However, it is important not to forget that these biometric systems have to withstand different types of possible attacks. This chapter carries out an analysis of different Presentation Attack (PA) scenarios for on-line handwritten signature verification. The main contributions of this chapter are: i) an updated overview of representative methods for Presentation Attack Detection (PAD) in signature biometrics; ii) a description of the different levels of PAs existing in on-line signature verification regarding the amount of information available to the impostor, as well as the training, effort, and ability to perform the forgeries; and iii) an evaluation of the system performance in signature biometrics under different scenarios considering recent publicly available signature databases, DeepSignDB and SVC2021_EvalDB. This work is in line with recent efforts in the Common Criteria standardization community towards security evaluation of biometric systems.