Circuit Cipher Text - Policy Attribute - Based Encryption with Verifiable Delegation by using Cloud Computing

Abstract

To keep data secure and under control when stored in the cloud, data owners might encrypt it using attribute-based encryption. Users with less powerful computers often utilize cloud servers to decrypt tasks in order to save computing expenses. Because of this, attribute-based encryption with delegation comes into being. Nevertheless, there are still certain restrictions and unresolved problems about the past relevant work. If you delegate encryption to a cloud server, there's a chance the service may change rewrite the supplied content, provide a false calculation result. In an effort to save costs, they may mistakenly treat qualified customers as ineligible. In addition, there's a chance that the access limits won't be flexible enough while encryption is underway. Given that the most stringent form of access control may be achieved with a policy for generic circuits, our research takes into account a framework for constructing hybrid encryption using circuit cipher and text-policy attributes, with verifiable delegation.Not only do such a system and verifiable computation ensure that delegated computing outputs are accurate, but they also guarantee protected information and fine-grained access control. Our method also protects against chosen-plaintext assaults, as long as you use the Deterministic k-multilinear style We assume Diffie-Hellman algorithm. The feasibility and efficacy of the proposed solution are further confirmed by an exhaustive simulation exercise.