Probabilistic Perfectly Reliable and Secure Message Transmission – Possibility, Feasibility and Optimality

  • Kannan Srinathan
  • Arpita Patra
  • Ashish Choudhary
  • C. Pandu Rangan
Part of the Lecture Notes in Computer Science book series (LNCS, volume 4859)


We study the interplay of network connectivity and the issues related to feasibility and optimality for probabilistic perfectly reliable message transmission (PPRMT) and probabilistic perfectly secure message transmission (PPSMT) in a synchronous network under the influence of a mixed adversary who possesses unbounded computing power and can corrupt different set of nodes in Byzantine, omission, failstop and passive fashion simultaneously. Our results show that that randomness helps in the possibility of multiphase PPSMT and significantly improves the lower bound on communication complexity for both PPRMT and PPSMT protocols!!


Probabilistic Reliability Information Theoretic Security Fault Tolerance 


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Copyright information

© Springer-Verlag Berlin Heidelberg 2007

Authors and Affiliations

  • Kannan Srinathan
    • 2
  • Arpita Patra
    • 1
  • Ashish Choudhary
    • 1
  • C. Pandu Rangan
    • 1
  1. 1.Dept of Computer Science and Engineering, IIT Madras, Chennai, 600036India
  2. 2.Center for Security, Theory and Algorithmic Research, International Institute of Information Technology, Hyderabad 500032India

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