Cryptographic methods have been extensively employed in various systems to address
security objectives, such as data confidentiality, authentication, and secure communication …

Data sharing is an important functionality in cloud storage. In this paper, we show how to
securely, efficiently, and flexibly share data with others in cloud storage. We describe new …

Hierarchies arise in the context of access control whenever the user population can be
modeled as a set of partially ordered classes (represented as a directed graph). A user with …

Sharing encrypted data with different users via public cloud storage is an important
functionality. Therefore, we propose a key-aggregate authentication cryptosystem that can …

With the emergence of diverse group-based services, multiple multicast groups are likely to
coexist in a single network, and users may subscribe to multiple groups simultaneously …

The ability of data owner in secure and efficient arbitrary data sharing with others is of great
importance in the outsourced encrypted data on the cloud. To protect data confidentiality …

With the rapid advancement of cloud-native computing, the microservice with high
concurrency and low coupling has ushered in an unprecedented period of vigorous …

Secure group communication (SGC) has attracted much attention, as group-oriented
communications have been increasingly facilitating many emerging applications that require …

在基于内容的访问控制系统中, 主体对客体只有允许访问和拒绝访问两种权限,
且主体之间和客体之间都存在一种偏序关系, 传统的访问控制策略需要对主客体单独进行管理 …

The keystone of information security has been access control. Very often, User data is
misused and users are oblivious to the use of their data by unauthorized parties. Current …