Published Paper Details:

To enhance storage efficiency in cloud environments, the AES encryption scheme has been introduced, leveraging a key derived from the message itself for encryption purposes. This approach ensures that identical plaintexts result in identical ciphertexts. The AES scheme is further refined to include simultaneous encryption and provides comprehensive security definitions. Additionally, the MD5 algorithm, a cryptographic hashing method, is employed for digital signatures, content verification, and message integrity assurance. This hash-based method ensures that both sender and receiver obtain an identical file during transmission. Cloud computing facilitates the sharing of vast data volumes across networks. Numerous techniques exist to secure data in the cloud, yet recent methods show improved performance in handling encrypted content. Consequently, we propose a system for collecting, sharing, and securely distributing data with multi-owner privacy preservation in cloud settings. In this system, data owners can securely transmit private information to a selected group of users via the cloud