Biometrics

Most existing privacy-preserving biometric authentication approaches focus on storing and transmitting a modified version of the original biometric templates in order to avoid the danger of eavesdropping sensitive data or the case of compromised databases. One direction in order to combat the privacy issues associated with biometric authentication is the employment of biometric template protection schemes such as cancellable biometrics and biohashing. Examples of cancellable fingerprints were proposed by Ang et al., while Connell et al. proposed cancellable iris biometrics. Different biohashing schemes are presented in. Although biohashing offers low error rates while guaranteeing a quick authentication phase, biohashing schemes are vulnerable to several attacks.