D7.4 Holistic security model for secure service composition
Contributing Partners UNI PASSAU, MPL Executive Summary With this final deliverable PRISMACLOUD shows how to successfully link the whole 4-tiers of the PRISMACLOUD architecture and provide service developers with so-called Service Capabilities to advertise their newly developed services more...
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D7.9 Second release of software modules for use case integration and validation
This report provides the final overview of the work done in the frame of task T7.4 - Software development of framework and components to realize use cases. This is the third report of the task, an iteration over deliverable...
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D5.11 Verifiable computing techniques and integrity preserving modifications for data managed by secure storage solutions
PRISMACLOUD aims at bringing novel cryptographic concepts and methods to practical application, to improve the security and privacy of cloud based services, and make them usable for providers and users. The purpose of this deliverable is to extend the architecture...
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Einsetzbare Kryptografie für die Cloud
Title Einsetzbare Kryptografie für die Cloud Authors Henrich C. Pöhls (University of Passau) and Thomas Länger (University of Laussane) Abstract tba Journal Zeitschrift für Datenrecht und informationssicherheit (digma). Jahrgang 17, Heft 1, März 2017 [Download]
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Chameleon-Hashes with Dual Long-Term Trapdoors and Their Applications
A chameleon-hash behaves likes a standard collision-resistant hash function for outsiders. If, however, a trapdoor is known, arbitrary collisions can be found. Chameleon-hashes with ephemeral trapdoors (CHET; Camenisch et al., PKC 17) allow prohibiting that the holder of the...
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Performing Computations on Hierarchically Shared Secrets
Hierarchical secret sharing schemes distribute a message to a set of shareholders with different reconstruction capabilities. In distributed storage systems, this is an important property because it allows to grant more reconstruction capability to better performing storage servers and...
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4th PRISMACLOUD Newsletter - January 2018
The fourth issue of the PRISMACLOUD newsletter that will keep you updated about our scientific progress and achievements, and future events where we will participate. In particular, this fourth issue contains a short description of the PRISMACLOUD Services, a...
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David Derler presented PRISMACLOUD Results at Real World Crypto
On January 12th, David Derler (TU Graz) gave a talk on recent results obtained within Prismacloud at the Real World Crypto Symposium in Zurich, Switzerland. The talk was about a novel primitive termed Bloom filter encryption and its applications...
Details UniGuard: Protecting Unikernels using Intel SGX
Computations executed in lightweight virtual machines called unikernels have a minimal attack surface and improved performance. However, unikernels are still prone to leaking information to the operating system or to the hypervisor that hosts them. This is attributed to...
Details Bloom Filter Encryption and Applications to Efficient Forward-Secret 0-RTT Key Exchange
Forward secrecy is considered an essential design goal of modern key establishment (KE) protocols, such as TLS 1.3, for example. Furthermore, efficiency considerations such as zero round-trip time (0-RTT), where a client is able to send cryptographically protected payload...
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