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Pointer Dynamics como biometria cognitiva

Authors: Cunha, Liliana Maria Rodrigues da;

Pointer Dynamics como biometria cognitiva

Abstract

As tecnologias de autenticação biométricas visam aumentar a precisão de sistemas de segurança e têm dado provas da sua eficiência. Particularmente, as biometrias cognitivas, embora ainda não sejam tecnologias muito precisas, carecendo de bastante investigação, apresentam o potencial de aumentar os níveis de segurança. Neste sentido, o presente estudo analisa a viabilidade da utilização da técnica biométrica Pointer Dynamics como biometria cognitiva, sob determinadas condições. Para tal, elaborou-se um algoritmo, cujo critério de validação de identidades é o cumprimento do padrão individual no modo de interação com o rato, aquando da seleção das quadrículas do segredo gráfico. Realizaram-se testes de autenticação e de autenticação fraudulenta com dois tipos de imagens, uma com suposto significado emocional para o utilizador e, uma outra, sem significado emocional. Isto para permitir comparar os resultados da aplicação da técnica com estímulo cognitivo e sem estímulo cognitivo. Embora os resultados obtidos não permitam retirar conclusões definitivas, a verdade é que as FAR dos testes cognitivos e dos gráficos apresentam acentuadas variações relativas, para thresholds entre 4 e 7. O que indica que é provável que o estímulo cognitivo tenha aumentado a resistência às tentativas de autenticação fraudulentas. É, sem dúvida, uma área com muito potencial de investigação.

Biometric authentication technologies aim to increase the precision of security systems and have given proof of their effectiveness. Cognitive Biometrics, in particular, has shown the potential of raising security levels, although lacking somewhat in terms of precision and adequate research. Therefore, this study analyses the viability of the usage of the Pointer Dynamics biometric technique as cognitive biometrics, under certain conditions. To this end, an algorithm was developed, whose identity validation criterion is the execution of the individual pattern in the manner of interaction with the mouse, when selecting the grids of the graphic secret. Authentication and fraudulent authentication tests were conducted with two types of images, one with a supposed emotional meaning for the user, and one without. This was done so as to allow the comparison of results brought forth by the application of the technique with and without cognitive stimulus. Although results do not allow definite conclusions to be drawn, the fact is that the FAR of both the cognitive tests and graphs present marked relative variations, for thresholds between 4 and 7, which indicate that it is likely that the cognitive stimulus has increased the resistance to attempts of fraudulent authentication. It is, without doubt, a field of great research potential.

Country
Portugal
Related Organizations
Keywords

Biometria, Cognitive biometrics, Authentication, Biometrics, Biometria cognitiva, Autenticação, Domínio/Área Científica::Ciências Sociais::Ciências da Comunicação, Pointer Dynamics

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selected citations
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This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
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popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
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