Publications - Pervasive Computing Laboratory

Access control anotacionsemantica authentication Cloud computing coap compromise cryptography cynamon emadrid emrisco home network I-Shaper identity management inrisco inteligenciafuentesabiertas Internet of Things intrusion detection system IoT magos middleware Pervasive computing privacy Protocols Qursa raudo2 Security Smart Card Trust management Ubisec VANETs 
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2009
 Díaz-Sánchez, Daniel;  Marín, Andrés;  Almenárez, Florina;  Cortés, Alberto
Sharing conditional access modules through the home network for pay TV access Journal Article 
In: IEEE TRANSACTIONS ON CONSUMER ELECTRONICS, vol. 55, iss. 1, no. 1, pp. 88-96, 2009, ISSN: 0098-3063.
Abstract | Links | BibTeX | Tags: Conditional Access System, content protection and sharing, descrambler registration protocol, home network, IPTV, prototipomiddleware
@article{diazsanchez004,

title = {Sharing conditional access modules through the home network for pay TV access},

author = {Daniel Díaz-Sánchez and Andrés Marín and Florina Almenárez and Alberto Cortés},

url = {https://ieeexplore.ieee.org/document/4814419

https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=4814419},

doi = {https://doi.org/10.1109/TCE.2009.4814419},

issn = {0098-3063},

year  = {2009},

date = {2009-02-02},

urldate = {2009-02-02},

journal = {IEEE TRANSACTIONS ON CONSUMER ELECTRONICS},

volume = {55},

number = {1},

issue = {1},

pages = {88-96},

abstract = {In this article we present a system for sharing a Conditional Access Module among different visualization devices. Current pay-TV systems require having conditional access modules and smart cards replicated at every visualization device willing to access Pay-TV contents. In this article, we show how a home gateway, capable of securely distribute decryption keys to home visualization device, an inexpensive descrambler, and a home network, enable a flexible solution to access Pay-TV.},

keywords = {Conditional Access System, content protection and sharing, descrambler registration protocol, home network, IPTV, prototipomiddleware},

pubstate = {published},

tppubtype = {article}

}

Close
In this article we present a system for sharing a Conditional Access Module among different visualization devices. Current pay-TV systems require having conditional access modules and smart cards replicated at every visualization device willing to access Pay-TV contents. In this article, we show how a home gateway, capable of securely distribute decryption keys to home visualization device, an inexpensive descrambler, and a home network, enable a flexible solution to access Pay-TV.
Close
https://ieeexplore.ieee.org/document/4814419
https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=4814419
doi:https://doi.org/10.1109/TCE.2009.4814419
Close
2008
 Almenarez, Florina;  Marín, Andres;  Diaz, Daniel;  Cortes, Alberto;  Campo, Celeste;  García-Rubio, Carlos
Building an Open Toolkit of Digital Certificate Validation for Mobile Web Services Proceedings Article 
In: 2008 Sixth Annual IEEE International Conference on Pervasive Computing and Communications (PerCom), Institute of Electrical and Electronics Engineers (IEEE), 2008, ISBN: 978-0-7695-3113-7.
Abstract | Links | BibTeX | Tags: certificate validation, open toolkit, prototipomiddleware, X.509 certificates
@inproceedings{pa043,

title = {Building an Open Toolkit of Digital Certificate Validation for Mobile Web Services},

author = {Florina Almenarez and Andres Marín and Daniel Diaz and Alberto Cortes and Celeste Campo and Carlos García-Rubio},

url = {https://ieeexplore.ieee.org/document/4517456},

doi = {https://doi.org/10.1109/PERCOM.2008.97},

isbn = {978-0-7695-3113-7},

year  = {2008},

date = {2008-05-12},

urldate = {2008-05-12},

booktitle = {2008 Sixth Annual IEEE International Conference on Pervasive Computing and Communications (PerCom)},

publisher = {Institute of Electrical and Electronics Engineers (IEEE)},

abstract = {Mobile devices can both consume and provide services. They act indeed as a peer, according to the OMA mobile Web services specification. It is a move from simple data sharing to full deliver of application services down to mobile devices. The use of digital certificates to ensure the provision of services is suitable because devices can belong to different trust domains without having previously an established relationship. Besides, by interoperability issues, the use of PKI continues to grow and move into diverse environments. However, applications making use of such certificates are burdened with the overhead of constructing and validating the certification paths. These processes can become more complex and costly than fixed-infrastructure networks due to the wireless communications and restricted processing and power capabilities. The IETF PKIX WG has specified different mechanisms for delegating the certificate validation and making lighter the status information obtaining. However, these are not supported currently by mobile devices. For these reasons, we propose to develop an open toolkit for X.509 public key certificate validating based on OpenSSL. This toolkit is being developed and tested successfully in PDAs.},

keywords = {certificate validation, open toolkit, prototipomiddleware, X.509 certificates},

pubstate = {published},

tppubtype = {inproceedings}

}

Close
Mobile devices can both consume and provide services. They act indeed as a peer, according to the OMA mobile Web services specification. It is a move from simple data sharing to full deliver of application services down to mobile devices. The use of digital certificates to ensure the provision of services is suitable because devices can belong to different trust domains without having previously an established relationship. Besides, by interoperability issues, the use of PKI continues to grow and move into diverse environments. However, applications making use of such certificates are burdened with the overhead of constructing and validating the certification paths. These processes can become more complex and costly than fixed-infrastructure networks due to the wireless communications and restricted processing and power capabilities. The IETF PKIX WG has specified different mechanisms for delegating the certificate validation and making lighter the status information obtaining. However, these are not supported currently by mobile devices. For these reasons, we propose to develop an open toolkit for X.509 public key certificate validating based on OpenSSL. This toolkit is being developed and tested successfully in PDAs.
Close
https://ieeexplore.ieee.org/document/4517456
doi:https://doi.org/10.1109/PERCOM.2008.97
Close