A Tool for Estimating Information Leakage

  • Tom Chothia
  • Yusuke Kawamoto
  • Chris Novakovic
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 8044)


We present leakiEst, a tool that estimates how much information leaks from systems. To use leakiEst, an analyst must run a system with a range of secret values and record the outputs that may be exposed to an attacker. Our tool then estimates the amount of information leaked from the secret values to the observable outputs of the system. Importantly, our tool calculates the confidence intervals for these estimates, and tests whether they represent real evidence of an information leak in the system. leakiEst is freely available and has been used to verify the security of a range of real-world systems, including e-passports and Tor.


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Copyright information

© Springer-Verlag Berlin Heidelberg 2013

Authors and Affiliations

  • Tom Chothia
    • 1
  • Yusuke Kawamoto
    • 1
  • Chris Novakovic
    • 1
  1. 1.School of Computer ScienceUniversity of BirminghamBirminghamUK

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