Multi-Owner Data Sharing Using Key Policy Attribute-Based Encryption Method in the cloud

There is a Major problem in public clouds about the sharing of documents on attribute based policies, sharing data in a dynamic groups . With the help of advantage of low maintenance, cloud computing gives the effective solution for sharing group resource among cloud users. As the sharing of documents with different keys like attribute based encryption (ABE), and/or proxy re-encryption (PRE) approach has some weaknesses so, it cannot handle efficiently adding/revoking users and attributes of identification. Unfortunately, there is still a challenging issue, to share a data in multi-owner manner and preserve data and their confidentiality. In this paper, we propose Multi-Owner Data Sharing scheme, using attribute based encryption method. By using maximum advantage groupsignature , signed receipts and dynamic broadcast encryption techniques, any can share the data on the cloud. As the result we achieve the secure data sharing in the cloud we expect to combine the group signature and dynamic broadcast encryption techniques.