CCS

Cellular networks are aware of the approximate geographical location of all connected devices 24/7 in order to route calls and network packets. Teralytics is a data analytics company specialized in analyzing this particular dataset: Mobile network data ...

In the public clouds, an adversary can co-locate his or her virtual machines (VMs) with others on the same physical servers to start an attack against the integrity, confidentiality or availability. The one important factor to decrease the likelihood of ...

We propose a simple and efficient searchable symmetric encryption scheme based on a Bitmap index that evaluates Boolean queries. Our scheme provides a practical solution in settings where communications and computations are very constrained as it offers ...

Privacy-preserving range queries allow encrypting data while still enabling queries on ciphertexts if their corresponding plaintexts fall within a requested range. This provides a data owner the possibility to outsource data collections to a cloud ...

The software-as-a-service (SaaS) market is growing very fast, but still many clients are concerned about the confidentiality of their data in the cloud. Motivated hackers or malicious insiders could try to steal the clients' data. Encryption is a ...

Oblivious RAM (ORAM) is a well-established technology to hide data access patterns from an untrusted storage system. Although research in ORAM has been spurred in the last few years with the irruption of cloud computing, it is still unclear whether ORAM ...

Cloud computing offers most of its services under multi-tenancy environments. To satisfy security requirements among collaborating tenants, each tenant may define a set of access control policies to secure access to shared data. Several cloud solutions ...

Most existing cloud storage providers rely on data deduplication in order to significantly save storage costs by storing duplicate data only once. While the literature has thoroughly analyzed client-side information leakage associated with the use of ...

This paper addresses the problem of data retrievability in cloud computing systems performing deduplication to optimize their space savings: While there exist a number of proof of retrievability (PoR) solutions that guarantee storage correctness with ...

Together with its great advantages, cloud storage brought many interesting security issues to our attention. Since 2007, with the first efficient storage integrity protocols Proofs of Retrievability (PoR) of Juels and Kaliski, and Provable Data ...

Inadvertent exposure of sensitive data is a major concern for potential cloud customers. Much focus has been on other data leakage vectors, such as side channel attacks, while issues of data disposal and assured deletion have not received enough ...