Implementation of continuous-variable quantum key distribution with composable and one-sided-device-independent security against coherent attacks

Secret communication over public channels is one of the central pillars of a modern information society. Using quantum key distribution this is achieved without relying on the hardness of mathematical problems, which might be compromised by improved algorithms or by future quantum computers. State-of-the-art quantum key distribution requires composable security against coherent attacks for a finite number of distributed quantum states as well as robustness against implementation side channels. Here we present an implementation of continuous-variable quantum key distribution satisfying these requirements. Our implementation is based on the distribution of continuous-variable Einstein–Podolsky–Rosen entangled light. It is one-sided device independent, which means the security of the generated key is independent of any memoryfree attacks on the remote detector. Since continuous-variable encoding is compatible with conventional optical communication technology, our work is a step towards practical implementations of quantum key distribution with state-of-the-art security based solely on telecom components.

REORIENTANDO LA EDUCACIÓN EN BIBLIOTECOLOGÍA Y CIENCIA DE LA INFORMACIÓN PARA LA SOCIEDAD DE LA INFORMACIÓN: ALGUNAS REFLEXIONES

A lo largo de la historia, el desarrollo de la agricultura tardó siglos en concretarse, en expandirse y en darse a conocer en la mayoría de las culturas. Durante los últimos 200 años, parte de la humanidad ha sido dominada por la actividad industrial. Mientras el resto del mundo se esfuerza por participar en la RevoluciónIndustrial, algunas naciones atraviesan por una etapa que transforma todo de un modo extraordinariamente acelerado. Es lo que se conoce como “sociedad de la información”. No cabe ninguna duda, de que la sociedad está entrando en una nueva era, en que cada aspecto de la vida de las personas se caracteriza por las aplicaciones de las Tecnologías de la Información y de la Comunicación (TIC). Se presentan, en este nuevo medio ambiente, algunos cambios que deben plantearse en la formación de los profesionales de la información.

Editorial

El avance en las tecnologías de la comunicación e información han rediseñado los escenarios del ser humano y el modo de funcionar el mundo. Los procesos son más sencillos, inmediatos y globales, pero ameritan de conocimiento, de destrezas y de tecnologías.Unas décadas atrás, cuando Vannaver Bush ideó el ME MEX, era difícil de conceptuar, ese acceso casi ilimitado entre dos puntos militares internacionales. Más tarde, Jorge Luis Borges soñó la Biblioteca Global, a la cual se ingresa a través de puertas hexagonales y en la cual fluye el saber universal. Todos estos acontecimientos, que son realidades hoy, serían cuentos de duendes y hasta herejías para los monjes que custodiaban las bibliotecas en la Edad Media. Cómo imaginar el acceso inmediato a colecciones antiguas y modernas de otras bibliotecas y de otros países desde un solo ingreso?.

Editorial

Este volumen del Boletín BIBLIOTECAS y los próximos pretenden ser un medio de inspiración. Inspiración para proponer ideas que ofrezcan a la colectividad bibliotecaria rutas hacia la adaptación a una cultura global y tecnológica que gira alrededor de los avances de los sistemas de información y comunicación. Inspiración que nos mueva a innovar, a cometer errores y a corregirlos.Porque la era de la información lo es también de la creatividad.Creatividad que es la ventaja competitiva del profesional y de las organizaciones modernas. Inspiración para cambiar hacia actitudes abiertas, hacia nuevos proyectos que faciliten la transformación y hacia el reto que significa “ser global”. Inspiración para medir y producir pensamiento constructivo que nos ayude a definir nuevas metas mediante la voluntad de crear y compartir el conocimiento.

Towards a Framework for Analyzing and Evaluating Servitization Potential: Case Study of ENVIE Loire

Part 4: Transition Towards Product-Service Systems

Brief report: preliminary proposal of a conceptual model of a digital environment for developing mathematical reasoning in students with Autism Spectrum Disorders

There is clear evidence that in typically developing children reasoning and sense-making are essential in all mathematical learning and understanding processes. In children with autism spectrum disorders (ASD), however, these become much more significant, considering their importance to successful independent living. This paper presents a preliminary proposal of a digital environment, specifically targeted to promote the development of mathematical reasoning in students with ASD. Given the diversity of ASD, the prototyping of this environment requires the study of dynamic adaptation processes and the development of activities adjusted to each user’s profile. We present the results obtained during the first phase of this ongoing research, describing a conceptual model of the proposed digital environment. Guidelines for future research are also discussed.

Developing strategies to mitigate the energy consumed by network infrastructures

The energy consumption by ICT (Information and Communication Technology) equipment is rapidly increasing which causes a significant economic and environmental problem. At present, the network infrastructure is becoming a large portion of the energy footprint in ICT. Thus the concept of energy efficient or green networking has been introduced. Now one of the main concerns of network industry is to minimize energy consumption of network infrastructure because of the potential economic benefits, ethical responsibility, and its environmental impact. In this paper, the energy management strategies to reduce the energy consumed by network switches in LAN (Local Area Network) have been developed. According to the lifecycle assessment of network switches, during usage phase, the highest amount of energy consumed. The study considers bandwidth, link load and traffic matrixes as input parameters which have the highest contribution in energy footprint of network switches during usage phase and energy consumption as output. Then with the objective of reducing energy usage of network infrastructure, the feasibility of putting Ethernet switches hibernate or sleep mode was investigated. After that, the network topology was reorganized using clustering method based on the spectral approach for putting network switches to hibernate or switched off mode considering the time and communications among them. Experimental results show the interest of this approach in terms of energy consumption

Transition to Product Service Systems: methodology based on scenarios identification, modelling and evaluation

Part 4: Transition Towards Product-Service Systems

Applying Platform Design to Improve Product-Service Systems Collaborative Development

Part 3: Product-Service Systems

Collaborative Systems for Smart Networked Environments

International audience

Infomobility for “Car-Driver” Systems: Reference Model and Case Study

Part 21: Mobility and Logistics

Integration of Social Concerns in Collaborative Logistics and Transportation Networks

Part 21: Mobility and Logistics

A Collaborative IT Network for Three Adriatic Maritime Ports

Part 21: Mobility and Logistics

Collaborative Management of Intermodal Mobility

Part 21: Mobility and Logistics