Timing-Sensitive Information Flow Analysis for Synchronous Systems

  • Boris Köpf
  • David Basin
Part of the Lecture Notes in Computer Science book series (LNCS, volume 4189)


Timing side channels are a serious threat to the security of cryptographic algorithms. This paper presents a novel method for the timing-sensitive analysis of information flow in synchronous hardware circuits. The method is based on a parameterized notion of confidentiality for finite transition systems that allows one to model information leakage in a fine-grained way. We present an efficient decision procedure for system security and apply it to discover timing leaks in nontrivial hardware implementations of cryptographic algorithms.


Clock Cycle Cryptographic Algorithm Synchronous System Partial Partition Deterministic Automaton 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© Springer-Verlag Berlin Heidelberg 2006

Authors and Affiliations

  • Boris Köpf
    • 1
  • David Basin
    • 1
  1. 1.Information SecurityETH ZurichSwitzerland

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