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Conditional PRE (CPRE) is a novel public key primitive which enables the group sharing of confidential data without revealing its plaintext or decryption key to outside the group member. Previously, several efforts are made to facilitate CPRE in group data sharing in cloud environment. The main drawback of the state-of-art CPRE schemes for this purpose is that whenever the group member changes, the...
Data access control is an effective way to ensure the data security in the cloud. However, due to data outsourcing and untrusted cloud servers, the data access control becomes a challenging issue in cloud storage systems. In a multi-authority Attribute Based Encryption scheme, multiple attribute-authorities monitor different sets of attributes and issue corresponding decryption keys to users, and...
Data outsourcing is an emerging paradigm that allows users and companies to give their (potentially sensitive) data to external data storage provider that then become responsible for their storage, management, and dissemination. Although data outsourcing provides many benefits, it introduces new privacy and security concerns. How to protect the outsourcing data privacy when the access control policies...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.