Secure Data Sharing in the Cloud Through Proxy Re-Encryption Technique

The rapid advancement and widespread adoption of cloud computing have simplified data sharing processes. However, despite being a progressive technology, data security remains a paramount concern. In cloud-based storage, data owners may lack complete control over their data, as it is managed by a third-party entity, the cloud service provider. Securely storing and sharing data on the cloud presents significant challenges, particularly when data owners choose to share information with other parties, such as data users. To tackle this challenge, researchers have explored various encryption techniques in cryptography to ensure secure data sharing on the cloud. By leveraging proxy re-encryption, data owners can securely represent their encrypted data to the cloud through identity-based encryption, introducing an additional security layer to safeguard data during transfer. This approach restricts access to authorized users only, thereby enhancing data security. The proposed method, utilizing proxy re-encryption, is pivotal in facilitating reliable data sharing in cloud computing environments. This technique helps to manage data access effectively while minimizing potential congestion in centralized systems. The proposed approach has undergone rigorous security analysis and evaluation, marking a significant milestone in ensuring data integrity, confidentiality, and security. Such reassurance underscores the effectiveness of the implemented security measures, instilling confidence in the integrity of data management practices.