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An Efficient and Secure Attribute-Based Signcryption Scheme for Smart Grid Applications

Sedaghat, Mahdi | 2017

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  1. Type of Document: M.Sc. Thesis
  2. Language: Farsi
  3. Document No: 50652 (05)
  4. University: Sharif University of Technology
  5. Department: Electrical Engineering
  6. Advisor(s): Aref, Mohammad Reza; Mohajeri, Javad
  7. Abstract:
  8. With regards to the development of modern power systems, Smart Grid (SG) as an intelligent generation of electricity networks has been faced with a tremendous attention. Fine-grained data sharing in SG plays a vital role in efficiently managing data flow in the SG. As this data commonly contains sensitive information, design of the secure and efficient privacy preserving schemes for such networks with plenty of resource constrained devices is one of the most controversial issues. In this paper, we propose a Secure Ciphertext-Policy Attribute-Based SignCryption (CP-ABSC) scheme which simultaneously provides the authenticity and privacy of the users by enforcing an arbitrary access control policy on encrypted data. Since the number of required pairings in the designcryption algorithm is independent to the number of the involved attributes, the computational overhead is reduced in comparison with the existing schemes in the literature. In addition, we formally prove that the security of the proposed scheme is reduced to the hardness assumption of the q-Bilinear Diffie-Hellman Exponent (q-BDHE) problem. Moreover, we show that by embedding a Physical Unclonable Function (PUF) in each smart meter the storage overhead of the protocol is significantly reduced and the protocol will be secure against non-volatile memory attackers
  9. Keywords:
  10. Smart Power Grid ; Physical Unclonable Function (PUF) ; Attribute Based Ring Signature ; Secret Sharing Scheme ; Attribute Based Encryption ; Authentication Message ; Linear Secret Sharing Scheme

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