A Secure Business Model for Cloud Computing Based on CRM with Separate Encryption and Decryption Service

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Provided by: Creative Commons
Topic: Cloud
Format: PDF
Cloud computing is a virtual environment in which resources of the computing infrastructure are provided as data security and access control when users outsource sensitive data for sharing on cloud servers, which are not within the same trusted domain as data owners. To keep sensitive user data confidential against untrusted servers, existing solutions usually apply cryptographic methods by disclosing data decryption keys only to authorized users. However, in doing so, these solutions inevitably introduce a heavy computation overhead on the data owner for key distribution and data management when fine grained data access control is desired, and thus do not scale well.
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