3,252 research outputs found
Proceedings of International Workshop "Global Computing: Programming Environments, Languages, Security and Analysis of Systems"
According to the IST/ FET proactive initiative on GLOBAL COMPUTING, the goal is to obtain techniques (models, frameworks, methods, algorithms) for constructing systems that are flexible, dependable, secure, robust and efficient.
The dominant concerns are not those of representing and manipulating data efficiently but rather those of handling the co-ordination and interaction, security, reliability, robustness, failure modes, and control of risk of the entities in the system and the overall design, description and performance of the system itself.
Completely different paradigms of computer science may have to be developed to tackle these issues effectively. The research should concentrate on systems having the following characteristics: • The systems are composed of autonomous computational entities where activity is not centrally controlled, either because global control is impossible or impractical, or because the entities are created or controlled by different owners.
• The computational entities are mobile, due to the movement of the physical platforms or by movement of the entity from one platform to another.
• The configuration varies over time. For instance, the system is open to the introduction of new computational entities and likewise their deletion.
The behaviour of the entities may vary over time.
• The systems operate with incomplete information about the environment.
For instance, information becomes rapidly out of date and mobility requires information about the environment to be discovered.
The ultimate goal of the research action is to provide a solid scientific foundation for the design of such systems, and to lay the groundwork for achieving effective principles for building and analysing such systems.
This workshop covers the aspects related to languages and programming environments as well as analysis of systems and resources involving 9 projects (AGILE , DART, DEGAS , MIKADO, MRG, MYTHS, PEPITO, PROFUNDIS, SECURE) out of the 13 founded under the initiative. After an year from the start of the projects, the goal of the workshop is to fix the state of the art on the topics covered by the two clusters related to programming environments and analysis of systems as well as to devise strategies and new ideas to profitably continue the research effort towards the overall objective of the initiative.
We acknowledge the Dipartimento di Informatica and Tlc of the University of Trento, the Comune di Rovereto, the project DEGAS for partially funding the event and the Events and Meetings Office of the University of Trento for the valuable collaboration
The Review of Non-Technical Assumptions in Digital Identity Architectures
The literature on digital identity management systems (IdM) is abundant and solutions vary by technology components and non-technical requirements. In the long run, however, there is a need for exchanging identities across domains or even borders, which requires interoperable solutions and flexible architectures. This article aims to give an overview of the current research on digital identity management. We conduct a systematic literature review of digital identity solution architectures and extract their inherent non-technical assumptions. The findings show that solution designs can be based on organizational, business and trust assumptions as well as human-user assumptions. Namely, establishing the trust relationships and collaborations among participating organizations; human-users capability for maintaining private cryptographic material or the assumptions that win-win business models could be easily identified. By reviewing the key findings of solutions proposed and looking at the differences and commonalities of their technical, organizational and social requirements, we discuss their potential real-life inhibitors and identify opportunities for future research in IdM
Blockchain-Based Services Implemented in a Microservices Architecture Using a Trusted Platform Module Applied to Electric Vehicle Charging Stations
Microservice architectures exploit container-based virtualized services, which rarely use
hardware-based cryptography. A trusted platform module (TPM) offers a hardware root for trust
in services that makes use of cryptographic operations. The virtualization of this hardware module
offers high usability for other types of service that require TPM functionalities. This paper proposes
the design of TPM virtualization in a container. To ensure integrity, different mechanisms, such as
attestation and sealing, have been developed for the binaries and libraries stored in the container
volumes. Through a REST API, the container offers the functionalities of a TPM, such as key
generation and signing. To prevent unauthorized access to the container, this article proposes an
authentication mechanism based on tokens issued by the Cognito Amazon Web Service. As a proof
of concept and applicability in industry, a use case for electric vehicle charging stations using a
microservice-based architecture is proposed. Using the EOS.IO blockchain to maintain a copy of
the data, the virtualized TPM microservice provides the cryptographic operations necessary for
blockchain transactions. Through a two-factor authentication mechanism, users can access the data.
This scenario shows the potential of using blockchain technologies in microservice-based architectures,
where microservices such as the virtualized TPM fill a security gap in these architectures.Infineon TechnologiesProgram “Digitalisierung der EnergiewendeBundesministeriums für
Wirtschaft und EnergieTrusted Blockchains fur das offene, intelligente
Energienetz der Zukunft (tbiEnergy)FKZ 03EI6029DEuropean Health and Digital Executive Agency (HaDEA) program under Grant
Agreement No 101092950 (EDGELESS project)FEDER/Junta de
Andalucia-Consejeria de Transformacion Economica, Industria, Conocimiento y Universidades under
Project B-TIC-588-UGR20
Systematizing Decentralization and Privacy: Lessons from 15 Years of Research and Deployments
Decentralized systems are a subset of distributed systems where multiple
authorities control different components and no authority is fully trusted by
all. This implies that any component in a decentralized system is potentially
adversarial. We revise fifteen years of research on decentralization and
privacy, and provide an overview of key systems, as well as key insights for
designers of future systems. We show that decentralized designs can enhance
privacy, integrity, and availability but also require careful trade-offs in
terms of system complexity, properties provided, and degree of
decentralization. These trade-offs need to be understood and navigated by
designers. We argue that a combination of insights from cryptography,
distributed systems, and mechanism design, aligned with the development of
adequate incentives, are necessary to build scalable and successful
privacy-preserving decentralized systems
Novel Area-Efficient and Flexible Architectures for Optimal Ate Pairing on FPGA
While FPGA is a suitable platform for implementing cryptographic algorithms,
there are several challenges associated with implementing Optimal Ate pairing
on FPGA, such as security, limited computing resources, and high power
consumption. To overcome these issues, this study introduces three approaches
that can execute the optimal Ate pairing on Barreto-Naehrig curves using
Jacobean coordinates with the goal of reaching 128-bit security on the Genesys
board. The first approach is a pure software implementation utilizing the
MicroBlaze processor. The second involves a combination of software and
hardware, with key operations in and being transformed into
IP cores for the MicroBlaze. The third approach builds on the second by
incorporating parallelism to improve the pairing process. The utilization of
multiple MicroBlaze processors within a single system offers both versatility
and parallelism to speed up pairing calculations. A variety of methods and
parameters are used to optimize the pairing computation, including Montgomery
modular multiplication, the Karatsuba method, Jacobean coordinates, the Complex
squaring method, sparse multiplication, squaring in , and
the addition chain method. The proposed systems are designed to efficiently
utilize limited resources in restricted environments, while still completing
tasks in a timely manner.Comment: 13 pages, 8 figures, and 5 table
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