MobileCA: Accumulative secure group association with a certification path

Oyuntungalag Chagnaadorj, Jiro Tanaka*

*Corresponding author for this work

Research output: Contribution to journalConference articlepeer-review


In recent years, there has been growing interest in secure pairing, which refers to the establishment of a secure connection between two mobile devices. Many published studies have described the various types of out-of-band (OOB) channels through which authentication data can be transferred with user control and involvement. However, there has been little discussion of setting up secure connections between groups of mobile devices. Some security protocols have been proposed, but they have tended to focus on a scenario whereby all devices must be located in one place to perform the association. In this paper, we describe a new group association method, called MobileCA. Our method is designed for a broader range of scenarios and does not require all devices to be in one place at one time. MobileCA extends the OOB channel concept and utilizes digital certification. We have implemented a prototype system using smart phone handsets.

Original languageEnglish
Pages (from-to)242-249
Number of pages8
JournalProcedia Computer Science
Publication statusPublished - 2013
Externally publishedYes
Event4th International Conference on Emerging Ubiquitous Systems and Pervasive Networks, EUSPN 2013 and the 3rd International Conference on Current and Future Trends of Information and Communication Technologies in Healthcare, ICTH 2013 - Niagara Falls, ON, Canada
Duration: 2013 Oct 212013 Oct 24


  • Authentication
  • Out-of-band channel
  • Secure group association
  • Security protocol

ASJC Scopus subject areas

  • General Computer Science


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