Affiliations: [a] Department of Computer Science, University of the State of the Rio Grande do Norte, Natal, RN, Brazil | [b] Department of Informatics and Applied Mathematics, Federal University of RN, Natal, RN, Brazil
Correspondence:
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Corresponding author: Isaac de L.O. Filho, Department of Computer Science, University of the State of the Rio Grande do Norte, Natal, RN, Brazil. Tel.: +55 84 3207 2889; E-mail: isaacoliveira@uern.br.
Abstract: When taking into consideration user’s authentication technologies, systems can be divided into two main categories: (i) those that use passwords, keys, such as cards and tags and (ii) those that use biometric data, such as signature, fingerprint and voice. In this context, it is well understood that biometric systems, which were building based on biometric authentication technologies, emerge as safer authentication alternatives. In order to guarantee the security and thus the data stored accuracy, protection schemes for biometric authentication, such as the Fuzzy Vault and Fuzzy Commitment, have been adopted. In this work, we performed some improvements in the functioning of two well known fuzzy protection schemes, which are: Fuzzy Vault and Fuzzy Commitment, using the Papilio encryption algorithm. This combination leads to the proposal of new protection schemes called Papilio Fuzzy Vault and Papilio Fuzzy Commitment. We carried out an exploratory study using a suite of well-known biometric datasets. Our findings indicated gains in terms of security when comparing the proposed schemes to the original ones. However, the proposed schemes keep the same accuracy level of the original ones.
Keywords: Biometric, fuzzy schemes, Papilio Cryptosystem and Security
