Communications of the ACM
Executing SQL over encrypted data in the database-service-provider model
Proceedings of the 2002 ACM SIGMOD international conference on Management of data
Cryptographic File Systems Performance: What You Don't Know Can Hurt You
SISW '03 Proceedings of the Second IEEE International Security in Storage Workshop
Public-key cryptosystems based on composite degree residuosity classes
EUROCRYPT'99 Proceedings of the 17th international conference on Theory and application of cryptographic techniques
Practical threshold signatures
EUROCRYPT'00 Proceedings of the 19th international conference on Theory and application of cryptographic techniques
DepSky: dependable and secure storage in a cloud-of-clouds
Proceedings of the sixth conference on Computer systems
Plutus: scalable secure file sharing on untrusted storage
FAST'03 Proceedings of the 2nd USENIX conference on File and storage technologies
CryptDB: protecting confidentiality with encrypted query processing
SOSP '11 Proceedings of the Twenty-Third ACM Symposium on Operating Systems Principles
Home is safer than the cloud!: privacy concerns for consumer cloud storage
Proceedings of the Seventh Symposium on Usable Privacy and Security
Searching private data in a cloud encrypted domain
Proceedings of the 10th Conference on Open Research Areas in Information Retrieval
| Hi-index | 0.00 |
In this paper we present the Trusted Mail System (TMS), a dependable Email repository service that explores multiple untrusted storage clouds for storing, accessing and searching private email data. The system architecture provides security and reliability services while leveraging the heterogeneity and diversity offered by different untrusted cloud storage solutions from different service providers. To address dependability issues, TMS enforces a security model that protects confidentiality and integrity of mailboxes stored in those clouds, adding availability, reliability and intrusion-tolerance guarantees. The system uses homomorphic encryption mechanisms and indexing techniques allowing ranked multi-keyword searching operations over encrypted email messages and its contents. We illustrate TMS feasibility from an implemented prototype, evaluating its performance, design options, and services. The experimental results show that the solution is viable, offers reliability and privacy control for the users and does not aggravate conditions of data-access latency and availability.