Entropy Analysis and New Constructions of Biometric Key Generation Systems

@article{Golic2008EntropyAA,
  title={Entropy Analysis and New Constructions of Biometric Key Generation Systems},
  author={Jovan Dj. Golic and Madalina Baltatu},
  journal={IEEE Transactions on Information Theory},
  year={2008},
  volume={54},
  pages={2026-2040}
}
In this paper, a new, soft two-level approach for the generation of multiple and revocable biometric keys, adapted to the analog nature of biometric signals, is proposed. It consists of a novel randomized soft code-offset construction for the Euclidean metric, at the first level, and a code-redundancy construction for the Hamming metric, possibly based on a Reed-Solomon code, at the second level. The Shannon entropy analysis shows that the new construction achieves optimal security with respect… CONTINUE READING