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An overview of the E91 protocol (18-05-2012)

Arnaldo Gouveia, SQIG - IT

18/05/2012, 15:00
Room P4.35, Mathematics Building


In the current Quantum Key Distribution (QKD) proposals it is possible to generate a secret key and distribute it with the involved parties separated in physical terms. This possibility opens the possibility of structuring a a solution to the the classical cryptography problem of key distribution with reduced interaction among involved parties. Among other proposals to adress this issue is the Eckert 91 protocol wich will be in scope in this report. Proposed in 1991 by A. Eckert it is an entanglement based protocol. The security assurance of entanglement based protocols is based on impossibility of an eavesdropper has to clone a message without destroying it. As such the receiver has the possibility to detect eavesdropping and this is a major advantage of this type of protocols. In the end the a security proof will be described.


URL: http://www.math.ist.utl.pt/seminars/qci/?action=next

20th anniversary of Instituto de Telecomunicações (31-05-2012)

A series of events will be held in 2012 at the sites and branches of Instituto de Telecomunicações to mark its 20th anniversary.

May 31, 2011, 14:00 - Leiria branch of IT

For more information, follow the link below.

URL: http://www.it.pt/auto_temp_web_page_preview.asp?id=1127

The Power Challenges of Mega-Science Infrastructures: the example of SKA (20-06-2012)

Venue: Moura - Portugal and Sevilla, Spain
20th-21st June

Rationale
All future major science infrastructures will consider their carbon footprint into the respective development path and lifetimes. The Square Kilometer Array (SKA), an international continental sized ICT machine to be built in the Southern Hemisphere in high irradiance zones (Australia and/or South Africa) presents an ideal scenario to aggregate renewable energy know-how and become a major Green Infrastructure during its lifetime. SKA may set an example for self-sustainable mega-science production and infrastructure operation as was recognized by the COST 2010 action ''Benefits of Research Infrastructures beyond Science'', with an expected direct economic and indirect societal impacts. Additionaly, the Roadmap of the European Strategy Forum on Research Infrastructures (ESFRI) has indicated that a multitude of test facilities and Research Infrastructures are paramount to lead the world in the efficient use of energy, in promoting new and renewable forms of energy, and in the development of low carbon emission technologies, as part of a Strategic Energy Technology Plan (SET-Plan) adopted by the European Union.
Current energy consumption projections for SKA and recent experiences from pathfinders and precursors (LOFAR, ASKAP, Meerkat) reveal that an important part of the life cycle cost of these large scale radio astronomy projects will be power. Energy transport infrastructure and generation to supply the electronics and the associated cooling are key factors. This last aspect has a direct impact on the system sensitivity, since any potential power caps would limit performance of frontend Low Noise Amplifiers.

To foster discussions between scientists and power engineers, the social program will include visits to major Power plants at top Iberian installations producing solar power (photovoltaic and thermal) on the Portuguese and Spanish sides of the common border. This region is the most illuminated region of Europe, counting with several large scale examples of solar energy exploitation.

Facilities in the area will be organized and available by bus. Therefore, for logistic reasons, the workshop will be limited to 45 participants.


URL: http://www.av.it.pt/workshops/pcska/index.html

Escola de Verão ''Criptografia e Segurança da Informação'' SQIG-IT/DM-IST (18-07-2012)

O Grupo de Segurança e Informação Quântica (SQIG) do Instituto de Telecomunicações (IT), juntamente com o Departamento de Matemática (DM) do Instituto Superior Técnico (IST), organiza uma Escola de Verão destinada a alunos do 11º ano do ensino secundário sobre Criptografia e Segurança da Informação.

A privacidade nas telecomunicações e a segurança da informação em geral são problemas fundamentais na sociedade da informação em que vivemos, e também tópicos de investigação extremamente activos e com uma grande variedade de aplicações.

Esta Escola de Verão tem por objectivo introduzir estes temas a partir dos seus fundamentos matemáticos, incluindo Teoria dos Números e Matemática Discreta, indo dos aspectos históricos até aos desenvolvimentos mais recentes, como a criptografia quântica.

A inscrição na Escola de Verão é gratuita e o programa inclui cursos teóricos, actividades práticas e visitas a laboratórios do Instituto de Telecomunicações. O número de participantes é limitado a 30.

As inscrições estão abertas até 30 de Abril. A Escola de Verão terá lugar de 18 a 20 de Julho de 2012, no Instituto Superior Técnico (ver localização).

SQIG - Security and Quantum Information Group

Departamento de Matemática


URL: http://www.escoladeverao.info/

Second Lisbon Machine Learning School (LxMLS 2012) (19-07-2012)

LxMLS 2012 will take place in July 19-25, at Instituto Superior Técnico, a leading Engineering and Science school in Portugal. It is organized jointly by IST, the Instituto de Telecomunicações, and the Spoken Language Systems Lab - L2F of INESC-ID.
In our second year, the topic of the school is Taming the Social Web.
The school covers a range of machine learning (ML) Topics, from theory to practice, that are important in solving natural language processing (NLP) problems that arise in the analysis and use of Web data.
Our target audience includes: researchers and graduate students in the fields of NLP and
Computational Linguistics; computer scientists who have interests in statistics and machine learning; industry practitioners who desire a more in depth understanding of these subjects.


URL: http://lxmls.it.pt