OpenHuaca, a platform for easily building cloud infrastructure

La tesis está basada en la definición e implementación de una plataforma de código libre llamada OpenHuaca, la cual es una plataforma cloud privada basada en contenedores LXC y máquinas KVM. Pensada para centros de investigación, con el objetivo de acercar el mundo cloud a todos los niveles

DEFS - Data exchange with Free Sample Protocol

Distrust between data providers and data consumers is one of the main obstacles hampering digital-data commerce to take off. Data providers want to get paid for what they offer, while data consumers want to know exactly what are they paying for before actually paying for it. In this article, we present a protocol that overcomes this obstacle by building trust based on two main ideas. First, a probabilistic verification protocol, where some random samples of the real dataset are shown to buyers in order to allow them to make an assessment before committing any payment; and second a guaranteed, protected payment process, enforced with smart contracts on a public blockchain, that guarantees the payment of the data if and only if the data provided meets the agreed terms, and that refunds honest players otherwise.The architecture presented in this paper is supported and developed in the context of the i3-MARKET project [?]. The i3-MARKET project is an active European H2020 project focused on developing solutions for building an European data market economy by enhancing current marketplace platforms with innovative technologies (call H2020-ICT-2019-2 with grant agreement number 871754). This work is also supported by the TCO-RISEBLOCK (PID2019-110224RBI00), MINECO/FEDER funded project ARPASAT TEC2015-70197-R and by the Generalitat de Catalunya grant 2014-SGR-1504.Postprint (author's final draft

A protocol for data exchange with free samples using smart contracts

Distrust between data providers and data consumers is one of the main obstacles hampering digitaldata commerce to take off. Data providers want to get paid for what they offer, while data consumers want to know exactly what are they paying for before actually paying for it. In this paper, we summarize a protocol that overcomes this obstacle by building trust based on two main ideas. First, a probabilistic verification protocol, where some random samples of the real dataset are shown to buyers in order to allow them to make an assessment before committing any payment; and second a guaranteed, protected payment process, enforced with smart contracts on a public blockchain, that guarantees the payment of the data if and only if the data provided meets the agreed terms, and that refunds honest players otherwise.This research has been funded by i3Market (H2020- ICT-2019-2 grant number 871754). This work is also supported by the TCO-RISEBLOCK (PID2019-110224RBI00), ARPASAT (TEC2015-70197-R), Project RTI2018- 102112-B-I00 (AEI/FEDER,UE) and by the Generalitat de Catalunya grant 2014-SGR-1504Postprint (author's final draft

Desarrollo de una plataforma cloud multiusuario basada en contenedores SO

Development of a Multi-tenant cloud platform based on OS containersEl objetivo de este Proyecto es el desarollo de una plataforma cloud llamada OpenHuaca que da a los usuarios la posiblilidad de crear y gestionar diversos contenedores virtuales de una forma rápida y sencilla. Además, puede ser administrada por dominios. Esta pensado para pequeños o medianos entornos, por ejemplo, en el area docente puede controlar los ordenadores de unos laboratorios de la Universidad. OpenHuaca esta preparado para cubrir las necesidades de los alumnos de una forma centralizada. Por lo tanto, cada estudiante podrá conectarse a sus contenedores con su propio certificado digital. La complejidad del proyecto ha hecho necesaria la creación de un equipo de trabajo formado por el supervisor y varios estudiantes de TFG de diferentes universidades para crear nuevas funcionalidades al proyecto.The target of this project is the development of a cloud platform called OpenHuaca that lets the user of the software the possibility of creating and managing some virtual containers in an easy and fast way. Moreover, it can be administrated with domains. It is thought to be implemented in small or medium stages; for example, in a teaching area can be used to control the computers of the university laboratories. OpenHuaca is ready to help with all the students’ necessities in a centralized way. So, every student can connect to all containers with their specific digital certificate. The complexity of the project has made it necessary to create a working team formed by a supervisor and various TFG students from different universities in order to introduce new functionalities to the project quicker.L’objectiu d’aquest projecte es el desenvolupament d’una plataforma cloud anomenada OpenHuaca que permet als usuaris la possibilitat de crear i gestionar diversos contenidors virtuals d’una forma ràpida i cómoda. A mes a mes, pot ser administrat per dominis. Esta pensat per petits o mitjans escenaris, per exemple, en l’area docent pot controlar els ordinadors dels laboratoris de l’universitat. OpenHuaca esta preparat per ajudar en totes les necesitats dels alumnes d’una forma centralitzada. Per lo tant, cada estudiant podrá conectarse als seus contenidors amb el seu propi certificat digital. La complexitat del proyecte ha fet necesari la creació d’un equip de treball format pel supervisor i alguns estudiants de TFG de diferentes universitats per crear noves funcionalitats al projecte

OpenHuaca, a platform for easily building cloud infrastructure

La tesis está basada en la definición e implementación de una plataforma de código libre llamada OpenHuaca, la cual es una plataforma cloud privada basada en contenedores LXC y máquinas KVM. Pensada para centros de investigación, con el objetivo de acercar el mundo cloud a todos los niveles

OpenHuaca, a platform for easily building cloud infrastructure

La tesis está basada en la definición e implementación de una plataforma de código libre llamada OpenHuaca, la cual es una plataforma cloud privada basada en contenedores LXC y máquinas KVM. Pensada para centros de investigación, con el objetivo de acercar el mundo cloud a todos los niveles

Desarrollo de una plataforma cloud multiusuario basada en contenedores SO

Development of a Multi-tenant cloud platform based on OS containersEl objetivo de este Proyecto es el desarollo de una plataforma cloud llamada OpenHuaca que da a los usuarios la posiblilidad de crear y gestionar diversos contenedores virtuales de una forma rápida y sencilla. Además, puede ser administrada por dominios. Esta pensado para pequeños o medianos entornos, por ejemplo, en el area docente puede controlar los ordenadores de unos laboratorios de la Universidad. OpenHuaca esta preparado para cubrir las necesidades de los alumnos de una forma centralizada. Por lo tanto, cada estudiante podrá conectarse a sus contenedores con su propio certificado digital. La complejidad del proyecto ha hecho necesaria la creación de un equipo de trabajo formado por el supervisor y varios estudiantes de TFG de diferentes universidades para crear nuevas funcionalidades al proyecto.The target of this project is the development of a cloud platform called OpenHuaca that lets the user of the software the possibility of creating and managing some virtual containers in an easy and fast way. Moreover, it can be administrated with domains. It is thought to be implemented in small or medium stages; for example, in a teaching area can be used to control the computers of the university laboratories. OpenHuaca is ready to help with all the students’ necessities in a centralized way. So, every student can connect to all containers with their specific digital certificate. The complexity of the project has made it necessary to create a working team formed by a supervisor and various TFG students from different universities in order to introduce new functionalities to the project quicker.L’objectiu d’aquest projecte es el desenvolupament d’una plataforma cloud anomenada OpenHuaca que permet als usuaris la possibilitat de crear i gestionar diversos contenidors virtuals d’una forma ràpida i cómoda. A mes a mes, pot ser administrat per dominis. Esta pensat per petits o mitjans escenaris, per exemple, en l’area docent pot controlar els ordinadors dels laboratoris de l’universitat. OpenHuaca esta preparat per ajudar en totes les necesitats dels alumnes d’una forma centralitzada. Per lo tant, cada estudiant podrá conectarse als seus contenidors amb el seu propi certificat digital. La complexitat del proyecte ha fet necesari la creació d’un equip de treball format pel supervisor i alguns estudiants de TFG de diferentes universitats per crear noves funcionalitats al projecte

An architecture for easy onboarding and key life-cycle management in blockchain applications

© 2020 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes,creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.New manufacturing paradigms require a large number of business interactions between multiple cyber-physical systems with different owners. In this context, public distributed ledgers are disruptive because they make it possible to securely and publicly record proofs of agreements between parties that do not necessarily trust each other. Many industry leaders have already achieved significant business benefits using this technology, including greater transparency, improved traceability, enhanced security, increased transaction speed and costs reduction. While the benefits of blockchain technologies for industrial applications are unquestionable, these technologies have an inherent complexity that might be overwhelming for many users. To decrease entry barriers for industry users to distributed ledger technologies, it is necessary to have an easy user onboarding process and a simple key life-cycle management. In this paper, we propose an architecture that facilitates these processes and simplifies how users utilize decentralized applications without sacrificing on the expected security. To achieve this goal, our architecture uses a middleware that allows us to decouple the digital signatures required for paying blockchain fees from the ones required for authorization. This approach has the advantage that users are not forced to create wallets, buy cryptocurrency, or protect their private keys. For these reasons, our solution is a promising way of enabling a reasonable transition to the integration of distributed ledger technologies in industrial business processes.Postprint (author's final draft