Operating system

Cloud computing security

Public-key cryptography

Computer science

Cloud computing

Information privacy

Client-side encryption

Attribute-based encryption

On-the-fly encryption

Access control

Computer security

Encryption

Proxy re-encryption

Overhead (engineering)

Ciphertext

Revocation

IEEE Access

Privacy and security are the most important issues to the popularity of cloud computing service. In recent years, there are many research schemes of cloud computing privacy protection based on access control, attribute-based encryption (ABE), trust and reputation, but they are scattered and lack unified logic. In this paper, we systematically review and analyze relevant research achievements. First, we discuss the architecture, concepts and several shortcomings of cloud computing, and propose a framework of privacy protection; second, we discuss and analyze basic ABE, KP-ABE (key policy attribute-based encryption), CP-ABE (ciphertext policy attribute-based encryption), access structure, revocation mechanism, multi-authority, fine-grained, trace mechanism, proxy re-encryption (PRE), hierarchical encryption, searchable encryption (SE), trust, reputation, extension of tradition access control and hierarchical key; third, we propose the research challenge and future direction of the privacy protection in the clou...

Privacy Protection and Data Security in Cloud Computing: A Survey, Challenges, and Solutions