Secure Cloud Data Sharing Within a Group

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Executive Summary

In this paper, the authors propose a secure shared group model of cloud storage. Their proposed model is based on the cryptological technology that each member in the same group has its private key respectively and shares a common public key to protect the shared data in cloud. The illegal or unauthorized users cannot access the data because they do not have the access key. Based on their model, the security of shared data can be guaranteed, neither CSP nor any third party can disclose the shared data in cloud storage.

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