Security and Privacy in Mobile Information and Communication Systems. First International ICST Conference, MobiSec 2009, Turin, Italy, June 3-5, 2009, Revised Selected Papers

Research Article

Generating Random and Pseudorandom Sequences in Mobile Devices

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  • @INPROCEEDINGS{10.1007/978-3-642-04434-2_11,
        author={Jan Krhovjak and Vashek Matyas and Jiri Zizkovsky},
        title={Generating Random and Pseudorandom Sequences in Mobile Devices},
        proceedings={Security and Privacy in Mobile Information and Communication Systems. First International ICST Conference, MobiSec 2009, Turin, Italy, June 3-5, 2009, Revised Selected Papers},
        proceedings_a={MOBISEC},
        year={2012},
        month={5},
        keywords={mobile device random sequence source of randomness},
        doi={10.1007/978-3-642-04434-2_11}
    }
    
  • Jan Krhovjak
    Vashek Matyas
    Jiri Zizkovsky
    Year: 2012
    Generating Random and Pseudorandom Sequences in Mobile Devices
    MOBISEC
    Springer
    DOI: 10.1007/978-3-642-04434-2_11
Jan Krhovjak1,*, Vashek Matyas1,*, Jiri Zizkovsky1,*
  • 1: Masaryk University
*Contact email: xkrhovj@fi.muni.cz, matyas@fi.muni.cz, xzizkovs@fi.muni.cz

Abstract

In our paper we study practical aspects of random and pseudorandom number generation in mobile environments. We examine and analyze several sources of randomness available in current mobile phones and other mobile devices at the application level. We identify good physical sources of randomness that are capable of generating data with high entropy in reasonable time and we investigate some relevant aspects (such as security, energy requirements, performance) of integrating selected pseudorandom number generators in the Symbian OS environment. The main contribution of this paper is the identification and analysis of randomness sources in mobile devices and a practical proposal for their post-processing, including a prototype implementation.