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Securing Passwords Beyond Human Capabilities with a Wearable Neuro-Device

  • Miguel Angel Lopez-Gordo
  • Jesus MinguillonEmail author
  • Juan Francisco Valenzuela-Valdes
  • Pablo Padilla
  • Jose Luis Padilla
  • Francisco Pelayo
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 10338)

Abstract

The election of strong passwords is a challenging task for humans that could undermine the secure online subscription to services in mobile applications. Composition rules and dictionaries help to choose stronger passwords, although at the cost of the easiness to memorize them. When high-performance computers are not available, such as in mobile scenarios, the problem is even worse because mobile devices typically lack good enough entropy sources. Then, the goal is to obtain strong passwords with the best efficiency in terms of level of entropy per character unit. In this study, we propose the use neuro-activity as source of entropy for the efficient generation of strong passwords. In our experiment we used the NIST test suite to compare binary random sequences extracted from neuro-activity by means of a mobile brain-computer interface with (i) strong passwords manually generated with restrictions based on dictionary and composition rules and (ii) passwords generated automatically by a mathematical software running on a work station. The results showed that random sequences based on neuro-activity were much more suitable for the generation of strong passwords than those generated by humans and were as strong as those generated by a computer. Also, the rate at which random bits were generated by neuro-activity (4 Kbps) was much faster than the passwords manually generated. Thus, just a very small fraction of the time and cognitive workload caused to manually generate a password has enough entropy for the generation of stronger, shorter and easier to remember passwords. We conclude that in either mobile scenarios or when good enough entropy sources are not available the use of neuro-activity is an efficient option for the generation of strong passwords.

Keywords

Wearable brain-computer interfaces Neuro-activity Secure passwords 

Notes

Acknowledgments

This work was supported by Nicolo Association for the R+D in Neurotechnologies for disability, the research project P11-TIC-7983 of Junta of Andalucia (Spain), the Spanish National Grant TIN2015-67020-P, co-financed by the European Regional Development Fund (ERDF) and the Spanish National Grant TIN2016-75097-P (AEI/FEDER, UE).

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Copyright information

© Springer International Publishing AG 2017

Authors and Affiliations

  • Miguel Angel Lopez-Gordo
    • 1
  • Jesus Minguillon
    • 2
    Email author
  • Juan Francisco Valenzuela-Valdes
    • 1
  • Pablo Padilla
    • 1
  • Jose Luis Padilla
    • 3
  • Francisco Pelayo
    • 1
  1. 1.Department of Signal Theory, Communications and Networking - CITICUniversity of GranadaGranadaSpain
  2. 2.Department of Computer Architecture and Technology - CITICUniversity of GranadaGranadaSpain
  3. 3.Department of Electronics and Computers TechnologyUniversity of GranadaGranadaSpain

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