Submitted by Automa??o e Estat?stica (sst@bczm.ufrn.br) on 2016-02-29T21:40:50Z
No. of bitstreams: 1
IsaacDeLimaOliveiraFilho_TESE.pdf: 4736257 bytes, checksum: a2dd3e8ad89a7fd3ede9d685be7bcd15 (MD5) / Approved for entry into archive by Arlan Eloi Leite Silva (eloihistoriador@yahoo.com.br) on 2016-03-01T20:03:18Z (GMT) No. of bitstreams: 1
IsaacDeLimaOliveiraFilho_TESE.pdf: 4736257 bytes, checksum: a2dd3e8ad89a7fd3ede9d685be7bcd15 (MD5) / Made available in DSpace on 2016-03-01T20:03:18Z (GMT). No. of bitstreams: 1
IsaacDeLimaOliveiraFilho_TESE.pdf: 4736257 bytes, checksum: a2dd3e8ad89a7fd3ede9d685be7bcd15 (MD5)
Previous issue date: 2014-12-12 / No processo de autentica??o/identifica??o de usu?rios, existem modelos que podem
utilizar senhas, chaves, identificadores pessoais para autenticar um determinado usu?rio.
No entanto, existem outros sistemas que utilizam caracter?sticas biom?tricas, por
exemplo, assinatura, impress?o digital, voz, etc, para a mesma finalidade. Contudo, o
armazenamento das biometrias pode trazer riscos quanto a consist?ncia e prote??o destes
dados. Diante deste problema, surge a necessidade de proteger estes bancos de dados
biom?tricos para garantir a integridade e confiabilidade do sistema. Atualmente, existem,
dentre v?rios, dois modelos conhecidos como Fuzzy Commitment e Fuzzy Vault, utilizados
na maioria dos processos de prote??o de dados biom?tricos para sistemas de autentica??o,
por?m os mesmos apresentam elementos fr?geis no processo de prote??o. Logo, melhorar
o n?vel de seguran?a deste m?todos, atrav?s de modifica??es na estrutura, ou mesmo
atrav?s da inser??o de novas camadas de prote??o trata-se de um dos objetivos desta tese.
Este trabalho, prop?e a utiliza??o simult?nea de criptografia (Algoritmo de Criptografia
Pap?lio) com os modelos de prote??o de templates (Fuzzy Vault e Fuzzy Commitment) em
sistemas de identifica??o baseados em biometria. Al?m disso, ? necess?rio manter um n?vel
razo?vel de efici?ncia destes dados atrav?s do uso de concord?ncia de classifica??o mais
elaboradas, conhecidas como comit?s. Isto ?, pretende-se propor uma nova abordagem
de modelo de sistemas de identifica??o biom?trico e atrav?s de um comparativo com os
modelos originais Fuzzy Vault e Fuzzy Commitment, verificar a melhora apresentada na
performance quanto a autentica??o e a prote??o dos dados biom?tricos. / There are authentication models which use passwords, keys, personal identifiers (cards,
tags etc) to authenticate a particular user in the authentication/identification process.
However, there are other systems that can use biometric data, such as signature,
fingerprint, voice, etc., to authenticate an individual in a system. In another hand, the
storage of biometric can bring some risks such as consistency and protection problems
for these data. According to this problem, it is necessary to protect these biometric
databases to ensure the integrity and reliability of the system. In this case, there are
models for security/authentication biometric identification, for example, models and Fuzzy
Vault and Fuzzy Commitment systems. Currently, these models are mostly used in the
cases for protection of biometric data, but they have fragile elements in the protection
process. Therefore, increasing the level of security of these methods through changes in the
structure, or even by inserting new layers of protection is one of the goals of this thesis. In
other words, this work proposes the simultaneous use of encryption (Encryption Algorithm
Papilio) with protection models templates (Fuzzy Vault and Fuzzy Commitment) in
identification systems based on biometric. The objective of this work is to improve two
aspects in Biometric systems: safety and accuracy. Furthermore, it is necessary to maintain
a reasonable level of efficiency of this data through the use of more elaborate classification
structures, known as committees. Therefore, we intend to propose a model of a safer
biometric identification systems for identification.
| Identifer | oai:union.ndltd.org:IBICT/oai:repositorio.ufrn.br:123456789/19892 |
| Date | 12 December 2014 |
| Creators | Oliveira Filho, Isaac de Lima |
| Contributors | 90688384404, http://lattes.cnpq.br/4601263005352005, Abreu, Marjory Cristiany da Costa, 04574986417, http://lattes.cnpq.br/2234040548103596, Schechter, Luis Menasche, 05693398714, http://lattes.cnpq.br/6932497213743411, Schwartz, William Robson, 03428811917, http://lattes.cnpq.br/0704592200063682, Canuto, Anne Magaly de Paula, Bedregal, Benjamin Ren? Callejas |
| Publisher | Universidade Federal do Rio Grande do Norte, PROGRAMA DE P?S-GRADUA??O EM SISTEMAS E COMPUTA??O, UFRN, Brasil |
| Source Sets | IBICT Brazilian ETDs |
| Language | Portuguese |
| Detected Language | English |
| Type | info:eu-repo/semantics/publishedVersion, info:eu-repo/semantics/doctoralThesis |
| Source | reponame:Repositório Institucional da UFRN, instname:Universidade Federal do Rio Grande do Norte, instacron:UFRN |
| Rights | info:eu-repo/semantics/openAccess |
Page generated in 0.0024 seconds