Earticle

초록

영어

Signcryption is a cryptographic primitive that can provide valid solution for authentication and confidentiality. In this paper, an efficient identity-based signcryption scheme from lattice was proposed. Our scheme based on Macciancio and Piekert’s trapdoor generation method and delegate algorithm for lattice. Our main idea is that establish the identity-based system master key via trapdoor generation method for lattice, and extract user’s key by trapdoor delegate algorithm. With the aid of random oracle, we prove that the proposed scheme has CCA security under the learning with errors (LWE) assumption and unforgeability against adaptive chosen messages attacks under the small integer solution (SIS) assumption. Comparison with signature-then-encryption approach shows that our scheme is efficient.

목차

Abstract
 1. Introduction
 2. Preliminaries
  2.1. Lattice and Hard Problems
  2.2. Trapdoors for Lattice
 3. Formal Model of Identity-based Signcryption
  3.1. Generic Scheme
  3.2. Security Notions
 4. The Signcryption Scheme
 5. Comparison
 6. Conclusion
 Acknowledgements
 References

키워드

저자

• Xiufeng Zhao [ Information Engineering University, Zhengzhou China ]
• Xiang Wang [ Information Engineering University, Zhengzhou China ]

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  International Journal of Security and Its Applications

• 간기

  격월간

• pISSN

  1738-9976

• 수록기간

  2008~2016

• 등재여부

  SCOPUS

• 십진분류

  KDC 505 DDC 605