We consider the task of interorganizational data sharing, in which data owners, data clients,
and data subjects have different and sometimes competing privacy concerns. One real …

Cloud storage is widely used by organizations due to its advantage of allowing universal
access with low cost. Attribute-based encryption (ABE) is a kind of public key encryption …

In this work, we propose a service infrastructure that provides confidentiality of data in the
cloud. It enables information sharing with fine-grained access control among multiple …

As more sensitive data is shared and stored by third-party sites on the internet, there will be
a need to encrypt data stored at these sites. One drawback of encrypting data is that it can …

Attribute based encryption (ABE) is a cryptographic technique allowing fine-grained access
control by enabling one-to-many encryption. Existing ABE constructions suffer from at least …

Personal health records (PHR) are an emerging health information exchange model, which
facilitates PHR owners to efficiently manage their health data. Typically, PHRs are …

As more sensitive data is shared and stored by third-party sites on the Internet, there will be
a need to encrypt data stored at these sites. One drawback of encrypting data, is that it can …

Personal health record (PHR) is an emerging patient-centric model of health information
exchange, which is often outsourced to be stored at a third party, such as cloud providers …

Attribute-based encryption (ABE) is an access control mechanism that ensures efficient data
sharing among dynamic groups of users by setting up access structures indicating who can …

Attribute-based encryption (ABE) can achieve data confidentiality as well as fine-grained
access control of encrypted data in data outsourcing systems. However, we urgently need to …