Wearable authentication device for transparent login in nomadic applications environment

Sampo Ojala*, Jari Keinänen, Jorma Skyttä

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

9 Citations (Scopus)


This paper describes a wearable authentication device for continuous user authentication and transparent login procedure in nomadic applications environment, where users are mobile and current authentication methods are not applicable. The wearable authentication device is a wristband in which the user authentication is done by using the fingerprint and to ensure that the person is wearing the device, it measures continuously his vital signs (skin temperature and heart rate) along with body capacitance and acceleration. By wearing the authentication device, the user can login transparently to any computer simply by approaching it. The prototype of the wearable authentication device was implemented and demonstrated successfully. The user was authenticated with the fingerprint and his presence could be verified continuously by using the skin temperature and the body capacitance. In addition, the heart rate of the user could be obtained from the pulse oximeter output. The received signal strength of the wireless connection offered an inexpensive and simple way to implement the transparent login by estimating the range between the user and a terminal.

Original languageEnglish
Title of host publication2008 2nd International Conference on Signals, Circuits and Systems, SCS 2008
Number of pages6
ISBN (Electronic)978-1-4244-2628-7
ISBN (Print)978-1-4244-2627-0
Publication statusPublished - 2008
MoE publication typeA4 Article in a conference publication
EventInternational Conference on Signals, Circuits and Systems - Monastir, Tunisia
Duration: 7 Nov 20089 Nov 2008
Conference number: 2


ConferenceInternational Conference on Signals, Circuits and Systems
Abbreviated titleSCS


  • Nomadic applications
  • Transparent login
  • User authentication
  • Vital signs
  • Wearable

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