Efficient Method for Re-Encryption in Unreliable Clouds Using R3 Algorithm
Efficient Method for Re-encryption in Unreliable Clouds Using R3 Algorithm
Abstract— Aim of the project is to re-encrypt the data and revoke the access rights from the users. In this paper, we propose an efficient data retrieval scheme using attribute-based encryption. The proposed scheme is best suited for cloud storage systems with substantial amount of data. It provides rich expressiveness as regards access control and fast searches with simple comparisons of searching entities. The proposed scheme also guarantees data security end-user privacy during the data retrieval process. A key approach to secure cloud computing is for the data owner to store encrypted data in the cloud, and issue decryption keys to authorized users. The cloud storage based information retrieval service is a promising technology that will form a vital market in the near future. Although there have been copious studies proposed about secure data retrieval over encrypted data in cloud services, most of them focus on providing the strict security for the data stored in a third party domain. However, those approaches require astounding costs centralized on the cloud service provider, this could be a principal hindrance to achieve efficient data retrieval in cloud storage.
Keywords— Attribute-based encryption, cloud computing, Proxy re-encryption.
I. Introduction
Cloud computing, which gets its name as a representation for the Internet [1], is becoming a popular term and has been used by an increasing number of organizations. In cloud computing environment, services are not provided by a single server or a small group of servers; instead, various computing and storage services are provided by some collection of data centers owned and maintained by a third party.
Cloud infrastructures can be roughly categorized as either private or public. In a private cloud, the infrastructure is managed and owned by the customer and
Abstract— Aim of the project is to re-encrypt the data and revoke the access rights from the users. In this paper, we propose an efficient data retrieval scheme using attribute-based encryption. The proposed scheme is best suited for cloud storage systems with substantial amount of data. It provides rich expressiveness as regards access control and fast searches with simple comparisons of searching entities. The proposed scheme also guarantees data security end-user privacy during the data retrieval process. A key approach to secure cloud computing is for the data owner to store encrypted data in the cloud, and issue decryption keys to authorized users. The cloud storage based information retrieval service is a promising technology that will form a vital market in the near future. Although there have been copious studies proposed about secure data retrieval over encrypted data in cloud services, most of them focus on providing the strict security for the data stored in a third party domain. However, those approaches require astounding costs centralized on the cloud service provider, this could be a principal hindrance to achieve efficient data retrieval in cloud storage.
Keywords— Attribute-based encryption, cloud computing, Proxy re-encryption.
I. Introduction
Cloud computing, which gets its name as a representation for the Internet [1], is becoming a popular term and has been used by an increasing number of organizations. In cloud computing environment, services are not provided by a single server or a small group of servers; instead, various computing and storage services are provided by some collection of data centers owned and maintained by a third party.
Cloud infrastructures can be roughly categorized as either private or public. In a private cloud, the infrastructure is managed and owned by the customer and
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