Journal of Shanghai Jiao Tong University (Science) ›› 2018, Vol. 23 ›› Issue (5): 666-670.doi: 10.1007/s12204-018-1962-5

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Proxy Re-Encryption Based Multi-Factor Access Control for Ciphertext in Cloud

Proxy Re-Encryption Based Multi-Factor Access Control for Ciphertext in Cloud

SU Mang (苏铓), WANG Liangchen (汪良辰), FU Anmin (付安民), YU Yan (俞研)   

  1. (School of Computer Science and Engineering, Nanjing University of Science and Technology, Nanjing 210094, China)
  2. (School of Computer Science and Engineering, Nanjing University of Science and Technology, Nanjing 210094, China)
  • Online:2018-10-01 Published:2018-10-07
  • Contact: SU Mang (苏铓) E-mail: sumang@njust.edu.cn

Abstract: Cloud computing provides a wide platform for information sharing. Users can access data and retrieve service easily and quickly. Generally, the data in cloud are transferred with encrypted form to protect the information. As an important technology of cloud security, access control should take account of multi-factor and ciphertext to satisfy the complex requirement for cloud data protection. We propose a proxy re-encryption (PRE) based multi-factor access control (PMAC) for cipher text in the above background. The PMAC adapts to the privacy and the protection of data confidently. We explain the motivation and some assumptions of PMAC at first. Then we define system model and algorithm. The system model and algorithm show how to create the data with corresponding accessing policy and how to grant and revoke the permission.

Key words: proxy re-encryption (PRE)| access control| multi-factor| cipher text| cloud computing

摘要: Cloud computing provides a wide platform for information sharing. Users can access data and retrieve service easily and quickly. Generally, the data in cloud are transferred with encrypted form to protect the information. As an important technology of cloud security, access control should take account of multi-factor and ciphertext to satisfy the complex requirement for cloud data protection. We propose a proxy re-encryption (PRE) based multi-factor access control (PMAC) for cipher text in the above background. The PMAC adapts to the privacy and the protection of data confidently. We explain the motivation and some assumptions of PMAC at first. Then we define system model and algorithm. The system model and algorithm show how to create the data with corresponding accessing policy and how to grant and revoke the permission.

关键词: proxy re-encryption (PRE)| access control| multi-factor| cipher text| cloud computing

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