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Direct Construction of Signcryption Tag-KEM from Standard Assumptions in the Standard Model

  • Xiangxue Li
  • Haifeng Qian
  • Yu Yu
  • Jian Weng
  • Yuan Zhou
Part of the Lecture Notes in Computer Science book series (LNCS, volume 8233)

Abstract

The paper presents a direct construction of signcryption tag-KEM under the standard DBDH and CDH assumptions in the standard model, without using strongly unforgeable signature schemes as building blocks. We prove its confidentiality and unforgeability with respect to adversarially-chosen keys where the adversary is given more advantageous attack environment than existing models in the literature. The performance of our construction is comparable to existing signcryption tag-KEM schemes.

Keywords

Random Oracle Water Signature Security Parameter Direct Construction Signcryption Scheme 
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 International Publishing Switzerland 2013

Authors and Affiliations

  • Xiangxue Li
    • 1
    • 2
  • Haifeng Qian
    • 1
  • Yu Yu
    • 3
  • Jian Weng
    • 4
  • Yuan Zhou
    • 5
  1. 1.Department of Computer Science and TechnologyEast China Normal UniversityChina
  2. 2.National Engineering Laboratory for Wireless SecurityXi’an University of Posts and TelecommunicationsChina
  3. 3.Institute for Interdisciplinary Information SciencesTsinghua UniversityChina
  4. 4.Department of Computer ScienceJinan UniversityChina
  5. 5.Network Emergency Response Technical Team/Coordination CenterChina

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