A e-Contract Based Business Model for Cloud Computing

In cloud computing environment, enterprises usually use business model for deploying and executing their various business operations. In cloud computing business model, the communication between the storage service and encryption/decryption service may lead to unauthorized access or disclosure of user data by any internal crew or administrative hacker. In this study paper, we introduce a secure business model for cloud computing, based on separating the storage service from the encryption/decryption service. There is no communication between the storage service and the encryption/decryption service. The storage service will store only encrypted data, which is provided by the storage provider. The encryption/decryption service will encrypt/decrypt the plain user data and it is provided by the encryption/decryption service provider. After cryptographic operations, the encryption/decryption service will delete all the user data. In this proposed business model, a secure channel is deployed to preserve the integrity of messaging between the services. The communication connection establishment between the intra-cloud or inter-cloud services is provided as a trusted third party service provider. To illustrate the proposed business model, a CRM application is used.