Privacy Weaknesses in Biometric Sketches

Free registration required

Executive Summary

The increasing use of biometrics has given rise to new privacy concerns. Biometric encryption systems have been proposed in order to alleviate such concerns: rather than comparing the biometric data directly, a key is derived from these data and subsequently knowledge of this key is proved. One specific application of biometric encryption is the use of biometric sketches: in this case biometric template data are protected with biometric encryption. The authors address the question whether one can undermine a user's privacy given access to biometrically encrypted documents, and more in particular, they examine if an attacker can determine whether two documents were encrypted using the same biometric.

  • Format: PDF
  • Size: 226.36 KB