Netinfo Security ›› 2016, Vol. 16 ›› Issue (11): 6-6.doi: 10.3969/j.issn.1671-1122.2016.11.002

• Orginal Article • Previous Articles     Next Articles

A Mixed Attributes-based Multi-authority Cloud Access Scheme

Xing RONG1,2(), Rong JIANG3   

  1. 1. The 3rd Academy, PLA Information Engineering University, Zhengzhou Henan 450004, China
    2. College of Computer Science, Beijing University of Technology, Beijing 100124, China
    3. The 6th Academy, National University of Defense Technology, Changsha Hunan 410073, China
  • Received:2016-08-15 Online:2016-11-20 Published:2020-05-13

Abstract:

The mode of outsourcing brings about new challenges for data security and access control in cloud computing, a multi-authority cloud access scheme with mixed access structure is put forward. After adding owner-defined permission attribute to traditional access structure, owner can decide which user has the right to access data and prevent attribute authority from peeking. User’s attribute and direct revocation methods can provide real-time privilege updating in multi-authority system, the former adopts proxy re-encryption to reduce the computing cost of data owner. Analysis shows that our proposed scheme is secure for protecting stored data under existing security models and highly efficient in attribute revocation, which is suitable for multi-authority cloud.

Key words: cloud computing, ABE, multi-authority, attribute revocation

CLC Number: