Gaussian fuzzy commitment

We discuss the protection of Gaussian biometric templates. We first introduce the Juels-Wattenberg for binary biometrics, where the binary biometrics are a result of hard-quantized Gaussian biometrics. The Juels-Wattenberg scheme adds a random binary code word to the biometric for privacy reasons and to allow errors in the biometric at authentication. We modify the Juels- Wattenberg scheme in such a way that we do not have to quantize the biometrics. We investigate and compare the performance of both approaches.