OmniShare: Encrypted Cloud Storage for the Multi-Device Era

OmniShare: Securely Accessing Encrypted Cloud Storage from Multiple Authorized Devices

Cloud storage services like Dropbox, Google Drive and OneDrive are becoming increasingly popular. Two major reasons for the success of cloud storage services are 1) their ability to synchronize stored data across multiple client devices and 2) the possibility of sharing a subset of this data with other people. But privacy of cloud data is a growing concern. Encrypting data on the client-side be...

Searchable Data Vault: Encrypted Queries in Secure Distributed Cloud Storage

Cloud storage services allow users to efficiently outsource their documents anytime and anywhere. Such convenience, however, leads to privacy concerns. While storage providers may not read users’ documents, attackers may possibly gain access by exploiting vulnerabilities in the storage system. Documents may also be leaked by curious administrators. A simple solution is for the user to encrypt a...

Provable Ownership of Encrypted Files in De-duplication Cloud Storage

The rapid adoption of cloud storage services has created an issue that many duplicated copies of files are stored in the remote storage servers, which not only wastes the communication bandwidth for duplicated file uploading, but also increases the cost of security data management. To solve this problem, client-side deduplication was introduced to avoid the client from uploading files already e...

Adaptive Multi-keyword Ranked Search Over Encrypted Cloud Data

Multi-keyword Similarity Search over Encrypted Cloud Data

Searchable encryption allows one to upload encrypted documents on a remote honest-but-curious server and query that data at the server itself without requiring the documents to be decrypted prior to searching. In this work, we propose a novel secure and efficient multi-keyword similarity searchable encryption (MKSim) that returns the matching data items in a ranked ordered manner. Unlike all pr...