Outsourcing medical data and their search services to a third party cloud have been a
popular trend for many medical practices, because using healthcare cloud services can help …

Searchable symmetric encryption (SSE) allows a party to outsource the storage of its data to
another party (a server) in a private manner, while maintaining the ability to selectively …

We show how to construct a variety of" trapdoor" cryptographic tools assuming the worst-
case hardness of standard lattice problems (such as approximating the length of the shortest …

We present a new methodology for realizing Ciphertext-Policy Attribute Encryption (CP-ABE)
under concrete and noninteractive cryptographic assumptions in the standard model. Our …

We consider the problem of building a secure cloud storage service on top of a public cloud
infrastructure where the service provider is not completely trusted by the customer. We …

This work presents the design and analysis of the first searchable symmetric encryption
(SSE) protocol that supports conjunctive search and general Boolean queries on outsourced …

We construct public-key systems that support comparison queries (x≥ a) on encrypted data
as well as more general queries such as subset queries (x∈ S). Furthermore, these systems …

Attribute-based encryption (ABE) is a new vision for public key encryption that allows users
to encrypt and decrypt messages based on user attributes. For example, a user can create a …

Predicate encryption is a new paradigm generalizing, among other things, identity-based
encryption. In a predicate encryption scheme, secret keys correspond to predicates and …

We present a new methodology for proving security of encryption systems using what we
call Dual System Encryption. Our techniques result in fully secure Identity-Based Encryption …