ECC based threshold cryptography for secure data forwarding and secure key exchange in MANET (i)

  • Authors:
  • Levent Ertaul;Weimin Lu

  • Affiliations:
  • Department of Math and Computer Science, California State University, Hayward, CA;Department of Math and Computer Science, California State University, Hayward, CA

  • Venue:
  • NETWORKING'05 Proceedings of the 4th IFIP-TC6 international conference on Networking Technologies, Services, and Protocols; Performance of Computer and Communication Networks; Mobile and Wireless Communication Systems
  • Year:
  • 2005

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Abstract

This paper proposes a new approach to provide reliable data transmission in MANET with strong adversaries. We combine Elliptic Curve Cryptography and Threshold Cryptosystem to securely deliver messages in n shares. As long as the destination receives at least k shares, it can recover the original message. We explore seven ECC mechanisms, El-Gamal, Massey-Omura, Diffie-Hellman, Menezes-Vanstone, Koyama-Maurer-Okamoto-Vanstone, Ertaul, and Demytko. For secure data forwarding, we consider both splitting plaintext before encryption, and splitting ciphertext after encryption. Also we suggest to exchange keys between a pair of mobile nodes using Elliptic Curve Cryptography Diffie-Hellman. We did performance comparison of ECC and RSA to show ECC is more efficient than RSA.