girao.bib
@inproceedings{dfn-manetsec,
author = {Andreas Festag and Joao Girao and Telemaco Melia and Dirk Westhoff},
title = {On the Limitations of Security Concepts for Mobile Adhoc Networks Routing Protocols},
booktitle = {DFN-Arbeitstagung {\"u}ber Kommunikationsnetze, D{\"u}sseldorf},
year = {2004},
address = {Dusseldorf, Germany},
month = {June},
organization = {DFN 2004},
note = {DFN-Arbeitstagung {\"u}ber Kommunikationsnetze, D{\"u}sseldorf},
keywords = {Ad Hoc networks secure routing countermeasures},
abstract = {Recently, a number of
approaches proposing various security aspects for routing protocols in
mobile ad hoc networks have been proposed. In this work we do not
introduce another proposal aiming at security in the context of ad hoc
networks. Instead, we argue from a generalized view and answer the
question: what security objectives are in principle achievable and
what security features are not achievable at all, even when using
unacceptable heavy weighted security features. Our contribution in
this work is to derive from the available security mechanisms and
from a reasonable ad hoc network specific attacker model a set of
theoretically achievable security objectives. In particular we will also
denote the majority of non practically achievable security objectives.},
pdf = {http://www.girao.org/joao/papers/dfn2004.pdf},
url = {http://www.uni-duesseldorf.de/dfn2004},
cfp = {http://www.girao.org/joao/cfps/dfn2004.pdf}
}
@article{det-scp,
author = {Joao Girao and Joao Barraca and Bernd Lamparter and Dirk Westhoff and Rui Aguiar},
title = {Implementing Charging in Ad-hoc Networks},
journal = {Department of Telecommunications of the University of Aveiro},
year = {2004},
volume = {4},
number = {2},
month = {May},
abstract = {In order to keep up with
new networking needs, it becomes necessary to adopt mechanisms for
charging network usage in a universal way. The Secure Charging Protocol
(SCP) aims at answering this complex authentication, authorization,
accounting and charging (AAAC) problem, and provides a view based on a
different business model, one that has been adjusted to cope with
technological changes. This document discusses SCP as a possible
solution to the AAAC problems in MANETs and addresses the improvements
made to this protocol in terms of Quality of Service (QoS) and User
Interfaces. An implementation of this protocol on PDAs is also described.},
pdf = {http://www.girao.org/joao/papers/det2004.pdf},
comment = {Nacional - Universidade de Aveiro, Portugal}
}
@inproceedings{ict-scp,
author = {Joao Girao and Joao Barraca and Bernd Lamparter and Dirk Westhoff and Rui Aguiar},
title = {QoS-differentiated Secure Charging in Ad-hoc environments},
booktitle = {11th International Conference on Telecommunications},
year = {2004},
address = {Fortaleza, Brazil},
month = {August},
organization = {ICT 2004},
abstract = {In order to keep up with new networking needs, it
is necessary to adopt mechanisms for charging network usage in a
universal way. The Secure Charging Protocol (SCP) aims at answering this
complex authentication, authorization, accounting and charging (AAAC)
problem. SCP fits business models especially adequate for ad-hoc
networks. This document discusses SCP as a possible solution to the
AAAC problems in MANETs and presents the improvements made to this
protocol in terms of Quality of Service (QoS). An implementation
of this protocol on PDAs and the results achieved are discussed.},
pdf = {http://www.girao.org/joao/papers/ict2004.pdf},
url = {http://www.ict2004.com.br/index.shtml},
cfp = {http://www.girao.org/joao/cfps/ict2004.pdf}
}
@inproceedings{esas-scp,
author = {Joao Girao and Bernd Lamparter and Dirk Westhoff and Rui Aguiar and Joao Barraca},
title = {Linking Ad hoc Charging Schemes to AAAC Architectures},
booktitle = {1st European Workshop on Security in Ad-Hoc and Sensor Networks},
year = {2004},
address = {Heidelberg, Germany},
month = {August},
organization = {ESAS 2004},
publisher = {Lecture Notes in Computer Science (LNCS)},
note = {LNCS 3313},
abstract = { The current state of today's networks allows us to take one
step further in merging the research community's work with every
day's life. Wireless ad~hoc networks are already well developed for
specific scenarios. This work shows how to build the link between the
wired network and a wireless ad~hoc infrastructure, in particular
routing and AAAC aspects. Such integration might lead, for example,
to a better spacial and resource distributed hotspot solution. We
provide the basis for inter-operation of AAAC\footnote{Authentication,
Authorization, Accounting and Charging} protocols known for the fixed
network, with the accounting protocol that performs the accounting
and charging functions in the ad~hoc network. This paper further
describes the implementation of the Secured Charging Protocol as an
instantiation of a charging protocol for ad hoc networks and the features
which were added to improve the interface to an external accounting
system. It covers the interaction with the MANET routing protocol
and how to deal with routes to or from outside the ad~hoc cloud.},
pdf = {http://www.girao.org/joao/papers/esas2004.pdf},
url = {http://www.netlab.nec.de/esas/esas2004.html},
cfp = {http://www.girao.org/joao/cfps/esas2004.pdf}
}
@misc{wwrf12,
author = {Joao Girao and Marco Liebsch and Rui Aguiar and Susana Sargento and Amardeo Sarma},
title = {Flexible Identity Scheme for 4G},
howpublished = {Presentation},
month = {November},
year = {2004},
note = {12th Wireless World Reseach Forum, Toronto, Canada},
abstract = {The classical network
model where a user owns a device and the network wishes to provide a
certain service with a certain Quality of Service (QoS), offering
mobility, security and accounting for this specific device is now
under siege. The device and the user are no longer the same. Users
may not even own the devices they use, but rather lease them for a
while. They may also want to just own a public screen at a public
place ? say an airport ? for a few moments. Even the concept of user
has changed tremendously. The idea that a user is a person has been
overtaken by the abstraction of the concept where a user can be a
person, a company, a University, a small shop or even a service.},
pdf = {http://www.girao.org/joao/presentations/wwrf12_abs.pdf},
url = {http://www.wireless-world-research.org/meeting/2004/WWRF12/WWRF12-default.asp},
presentation = {http://www.girao.org/joao/presentations/wwrf12_pres.pdf},
cfp = {http://www.girao.org/joao/cfps/wwrf12.pdf}
}
@inproceedings{wise-cda,
author = {Joao Girao and Markus Schneider and Dirk Westhoff},
title = {CDA: Concealed Data Aggregation in Wireless Sensor Networks},
booktitle = {ACM Workshop on Wireless Security},
year = {2004},
address = {Philadelphia, USA},
month = {October},
organization = {WiSe 2004},
note = {Poster presentation},
keywords = {Wireless sensor networks, Data
encryption, Data aggregation, Energy consumption, Privacy Homomorphism},
abstract = {End-to-end encryption for wireless sensor networks is a challenging
problem. To save the overall energy resources of the network it is
agreed that sensed data need to be consolidated and aggregated on
their way to the final destination. For such circumstances we present
an approach that conceals sensed and aggregated data end-to-end.
Even the aggregating intermediate nodes are not enabled to read the
sensed plaintext data. We apply a particular class of encryption
transformation and exemplary discuss the approach on the basis of
two aggregation functions. We show their appliance in hierarchical
aggregator topologies and use actual implementation to show that
the approach is feasible and frequently even more energy efficient
than hop-by-hop encryption addressing a much weaker attacker model.},
pdf = {http://www.girao.org/joao/papers/wise2004.pdf},
url = {http://www.ece.cmu.edu/~adrian/wise2004/},
cfp = {http://www.girao.org/joao/cfps/wise2004.pdf}
}