Earticle

초록

영어

Green and Ateniese introduced the notion of identity-based proxy re-encryption (IBPRE), whereby the proxy can covert a ciphertext encrypted under the delegator's identity to an encryption under the delegatee's identity of the same message. In some situations, biometric, such as dactylogram, was used as identities. However, these biometric identities will inherently have some noise when they are sampled each time. To make identity-based proxy re-encryption flexible on identities, we introduced a new primitive called fuzzy identity-based proxy re-encryption (FIB-PRE), in which an identity is viewed as a set of descriptive attributes. In a fuzzy identity-based proxy re-encryption scheme, an identity Wll can decrypt a ciphertext re-encrypted under another identity W, if and only if W and W l are close to each other as measured by the “set overlap” distance metric. In this work, we first formulate the security model of a FIB-PRE scheme. Finally, we present a construction of FIB-PRE and prove its CCA security under the decisional bilinear Diffie-Hellman (DBDH) assumption in the random model.

목차

Abstract
 1. Introduction
  1.1. Our Contributions
  1.2. Paper Organization
 2. Preliminaries
  2.1. Negligible function
  2.2. Bilinear map
  2.3. Decisional bilinear Diffie-Hellman (DBDH) assumption
  2.4. Fuzzy identity-based proxy re-encryption
  2.5. Security notion for FIB-PRE
 3. Our proposed FIB-PRE Scheme
  3.1. Construction
  3.2. Security of our FIB-PRE scheme
 4. Conclusions
 References

키워드

저자

• Chunpeng Ge [ College of Computer Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 210000, China ] Corresponding Author
• Jiandong Wang [ College of Computer Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 210000, China ]
• Liming Fang [ College of Computer Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 210000, 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