Biometrics

Some consider biometrics as intrusive and as a violation of privacy. While you read, pay attention to how biometric systems authenticate and to the three main threats against biometric systems. What are these three threats and what are the cryptographic and non-cryptographic countermeasures?

5. Conclusions

This article discusses challenges in biometric authentication, with a particular focus on privacy-preserving ones. We highlight the main advantages of biometric authentication as well as the risks that it brings along. We then list the most dangerous threats against privacy-preserving BAS and discuss possible attack strategies to undermine the privacy of a BAS. Finally, we identify possible directions to mitigate the highlighted threats, providing both the advantages and the disadvantages of the proposed methods. The practicality of privacy-preserving biometric authentication systems is by itself a great motivation for finding solutions to the security and privacy challenges connected to the employment of biometrics in authentication systems.