Light weight and fine-grained access mechanism for secure access to outsourced data*

Mosarrat Jahan, Suranga Seneviratne, Partha Sarathi Roy, Kouichi Sakurai, Aruna Seneviratne, Sanjay Jha

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)


In this paper, we explore the problem of providing selective read/write access to the outsourced data for clients using mobile devices in an environment that supports users from multiple domains and where attributes are generated by multiple authorities. We consider Ciphertext-Policy Attribute-based Encryption (CP-ABE) scheme as it can provide access control on encrypted outsourced data. One limitation of CP-ABE is that the users can modify the access policy specified by the data owner if write operations are introduced in the scheme. We propose a protocol for providing different levels of access to outsourced data that permits the authorized users to perform write operation without altering the access policy specified by the data owner. Our scheme provides fine-grained read/write access to the users, accompanied with a light weight signature scheme and computationally inexpensive user revocation mechanism suitable for resource-constrained mobile devices. We provide a theoretical analysis of the security of the proposed protocol and the experimental results measured from a real-world testbed.

Original languageEnglish
Article numbere4736
JournalConcurrency Computation Practice and Experience
Issue number23
Publication statusPublished - Dec 10 2019

All Science Journal Classification (ASJC) codes

  • Software
  • Theoretical Computer Science
  • Computer Networks and Communications
  • Computer Science Applications
  • Computational Theory and Mathematics


Dive into the research topics of 'Light weight and fine-grained access mechanism for secure access to outsourced data*'. Together they form a unique fingerprint.

Cite this