policy modes; (2) most operations of key generation, encryption, and decryption are securely outsourced to cloud servers, leaving extremely low overheads for the PKG, data owners, and users; and (3) it realizes the strongest security notion of public-key encryption schemes, namely...
A Survey on Multi Owner Data Sharing for Dynamic Groups in the Cloud Securely resource among cloud users .But, sharing data in a multi-owner manner while preserving data and identity privacy from an untrusted cloud is still a challenging issue, due to the frequent change of the membership in...
In Cloud computing the cloud servers are usually operated by third-party, which are almost certain to be outside the trust domain of cloud users. Initially the PHR access policies should be applied on these storage servers, also the confidentiality and security of sensitive data should be well ...
(iot), enterprises generate more and more big data, which needs to be stored and processed efficiently and securely. cloud computing is a developed storage platform and has many advantages including low cost and scalability [ 1 , 2 , 3 ]. therefore, many enterprises and individuals are apt ...
Data Sharing System In subject area: Computer Science A data sharing system refers to a system where multiple machines or processes can access the same database or stable storage devices, enabling the synchronization of access to shared data. It allows for replication of the server but not the ...
Data sharing among several users is one of the tedious processes in cloud computing. While sharing data between different users come across several conflicts like data integrity, efficiency of data and privacy of data owner. To overcome these problems Ring structure mechanism is implemented and adopte...
A Secure Anti-Collusion Data Sharing Scheme for Dynamic Groups in the Cloud with Improved Mail Security System Data sharing is an inevitable functionality in the cloud storage.The paper describes how to securely, efficiently, and flexibly share data in cloud storage. It describes new public-key cr...
First, we propose a secure way for key distribution without any secure communication channels, and the users can securely obtain their private keys from group manager. Second, our scheme can achieve fine-grained access control, any user in the group can use the source in the cloud and revoked...
An effective and obviously secure data selective sharing and acquisition mechanism for cloud-based systems is proposed in this work. We specifically start by important a common problematic related to the selective collection and distribution of data in cloud-based systems. To address these issues, ...
New WinZip 17 lets users connect with SkyDrive®, Dropbox and Google Drive™ to securely share files in the cloud. WinZip also makes it easy to see and share files on different cloud services, so users can manage their cloud sharing from one place. The integrated ZipShare™ service ...