Nowadays, cloud computing and cloud storage services that can reduce the local workload
are becoming increasingly popular, allowing individual and corporate users to upload data …

Attribute-based encryption (ABE) cryptography is widely known for its potential to solve the
scalability issue of recent public key infrastructure (PKI). It provides a fine-grained access …

Attribute-based conditional proxy re-encryption (AB-CPRE) allows delegators to carry out
attribute-based control on the delegation of decryption by setting policies and attribute …

Proxy Re-Encryption (PRE), a special cryptographic primitive, can efficiently perform
ciphertext conversion on the cloud. To enable the data owner (ie delegator) to authorize a …

Fine-grained access control systems facilitate granting differential access rights to a set of
users and allow flexibility in specifying the access rights of individual users. As an important …

When choosing a third-party cloud storage platform, the confidentiality of data should be the
primary concern. To address the issue of one-to-many access control during data sharing, it …

There are mostly semi-honest agents in cloud computing, so agents may perform unreliable
calculations during the actual execution process. In this paper, an attribute-based verifiable …

Autonomous path proxy re-encryption (AP-PRE) is a type of PRE that implements control on
the delegation path in a multi-hop PRE. AP-PRE forces the proxy to perform the …

Owing to the huge volume of big data, users generally use the cloud to store big data.
However, because the data are out of the control of users, sensitive data need to be …

Fog computing is a revolutionary technology that, by expanding the cloud computing
paradigm to the network edge, brings a significant achievement in the resource-constrained …