| 1. |
|
|
| 2. |
- Da Silva Fariña, Antonio, et al.
(författare)
-
Design and implementation of a Java Fault Injector for Exhaustif SWIFI tool
- 2009
-
Ingår i: Proceedings of 2009 4th International Conference on Dependability of Computer Systems, DepCos-RELCOMEX 2009. - 9780769536743 ; , s. 77-83
-
Konferensbidrag (refereegranskat)abstract
- Java is a successful programming environment and its use has grown from little embedded applications until enterprise network servers based on J2EE. This intensive use of Java demands the validation of their fault tolerance mechanisms to avoid unexpected behavior of the applications at runtime. This paper describes the design and implementation of a fault injector for the "Exhaustif®" SWIFI tool. Aspecific fault model for java applications that include class corruption/substitution at loading time, method call interception and unexpected exception thrown is proposed. The injector uses the JVMTI (JavaVirtual Machine Tool Interface) to perform bytecode instrumentation at runtime to carry out the fault model previously defined. Finally a XML formalization of the specific Java fault model is proposed. This approach, JVMTI + XML fault model description, provides complete independency between the system under test and the fault injection tool, as well the interoperability with another SWIFI tools.
|
|
| 3. |
|
|
| 4. |
|
|
| 5. |
- Hernández, Vicente, et al.
(författare)
-
Security framework for dpws compliant devices
- 2009
-
Ingår i: 2009 THIRD INTERNATIONAL CONFERENCE ON EMERGING SECURITY INFORMATION, SYSTEMS, AND TECHNOLOGIES. - 9781424443086 ; , s. 87-92
-
Konferensbidrag (refereegranskat)
|
|
| 6. |
|
|
| 7. |
- Lopez, Lourdes, et al.
(författare)
-
ASA : advanced secure architecture for preventing unauthorized access in personal computer platforms and BIOS
- 2007
-
Ingår i: Euro American Conference on Telematics and Information Systems - Proceedings of the 2007 Euro American Conference on Telematics and Information Systems, EATIS 2007. - New York, NY, USA : ACM. - 9781595935984 ; , s. Article number a18-
-
Konferensbidrag (refereegranskat)abstract
- This paper proposes an architecture for Personal Computers (PC) to avoid BIOS alteration and unauthorized access to resources. This proposal is based on results obtained from study of most popular PC platforms security mechanisms. Authentication controls which are established in PC platform in order to grant operating system booting or BIOS integrity of code mechanism incorporated to secureand avoid executing disallowed code are quite easy to break. The architecture described in the present work (Advanced Secure Architecture - ASA) increase the overall information and system security since prevents an unauthorized platform booting and it provides procedures for BIOS code authentication. On the other hand, ASA overcomes the users' authentication challenge in a corporative environment as well as it offers a very flexible way to specify the Personal Computers Corporation set that a user is allowed to access.
|
|
| 8. |
|
|
| 9. |
|
|
| 10. |
- Martínez-Ortega, José-Fernán, et al.
(författare)
-
An approach for applying multi-agent technology into wireless sensor networks
- 2007
-
Ingår i: Euro American Conference on Telematics and Information Systems - Proceedings of the 2007 Euro American Conference on Telematics and Information Systems, EATIS 2007. - New York, NY, USA : ACM Press. - 9781595935984 ; , s. Article number a22-
-
Konferensbidrag (refereegranskat)abstract
- The present work describes how the concepts and foundations defined for multi-agent system technology can be applied in to a Wireless SensorNetwork (WSN), specifically it is focused on how multi-agent system technology's mechanisms and implementations could facilitate the development of systems based on WSN. In this respect, an architectural model where the above mentioned concepts, foundations and mechanisms come together is proposed, in order to define applications and services on WSN. Validation of the proposed architecture is made by means of its use in a perimeter security scenario ("tracking"). It is important to mention, that partial results of this work have been developed in the project PROPSI (Perimeter Protection by means of Wireless Sensor Networks).
|
|
| 11. |
- Martínez-Ortega, José-Fernán, et al.
(författare)
-
Guaranteeing QoS in Wireless Sensor Networks
- 2008
-
Ingår i: Wireless Quality of Service. - : Auerbach Publications. - 9781420051308 ; , s. 251-289
-
Bokkapitel (refereegranskat)
|
|
| 12. |
- Martínez-Ortega, José-Fernán, et al.
(författare)
-
QoS in wireless sensor networks : survey and approach
- 2007
-
Ingår i: Euro American Conference on Telematics and Information Systems - Proceedings of the 2007 Euro American Conference on Telematics and Information Systems, EATIS 2007. - New York, NY, USA : ACM Press. - 9781595935984 ; , s. Article number a20-
-
Konferensbidrag (refereegranskat)abstract
- A wireless sensor network (WSN) is a computer wireless network composed of spatially distributed and autonomous tiny nodes - smart dustsensors, motes -, which cooperatively monitor physical or environmental conditions. Nowadays these kinds of networks support a wide range of applications, such as target tracking, security, environmental control, habitat monitoring, source detection, source localization, vehicular and traffic monitoring, health monitoring, building and industrial monitoring, etc. Many of these applications have strong requirements for end-to-end delay and losses during data transmissions. In this work we have classified the main mechanisms that have been proposed to provide Quality of Service (QoS) in WSN at Medium Access Control (MAC) and network layers. Finally, taking into account some particularities of the studied MAC- andnetwork-layer protocols, we have selected a real application scenario in order to show how to choose an appropriate approach for guaranteeing performance in a WSN deployed application.
|
|
| 13. |
- Martínez-Ortega, José-Fernán, et al.
(författare)
-
Trade-off between performance and energy consumption in wireless sensor networks
- 2007
-
Ingår i: Self-Organizing Systems. - Berlin, Heidelberg : Springer Berlin/Heidelberg. - 9783540749165 ; , s. 264-271
-
Konferensbidrag (övrigt vetenskapligt/konstnärligt)abstract
- Nowadays WSNs support applications such as target tracking, environmental control or vehicles traffic monitoring. Generally, these applications have strong and strict requirements for end-to-end delaying and loosing during data transmissions. In this paper, we propose a practical scenario for application of the WSN field in order to illustrate selection of an appropriate approach for guaranteeing performance in a WSN-deployed application. The methodology we have used includes four major phases: 1) Requirements analysis of the application scenario; 2) QoS modelling in different layers of the communications protocol stack and selection of more suitable QoS protocols and mechanisms; 3) Definition of a simulation model based on an application scenario, to which we applied the protocols and mechanisms selected in phase 2; 4) Validation of decisions by means of simulation; and 5) analysis of results. This work has being partially developed in the framework of the CRISAL - M0700204174 project (partially funded by “Universidad Politécnica de Madrid” and “Comunidad de Madrid”, Spain).
|
|
| 14. |
- Vellosillo, T, et al.
(författare)
-
Oxylipins produced by the 9-lipoxygenase pathway in Arabidopsis regulate lateral root development and defense responses through a specific signaling cascade
- 2007
-
Ingår i: The Plant cell. - : Oxford University Press (OUP). - 1040-4651 .- 1532-298X. ; 19:3, s. 831-846
-
Tidskriftsartikel (refereegranskat)abstract
- Arabidopsis thaliana seedling growth with pure oxylipins resulted in root waving, loss of root apical dominance, and decreased root elongation. 9-Hydroxyoctadecatrienoic acid (9-HOT) was a potent inducer of root waving. Studies with noxy2 (for nonresponding to oxylipins2), a new 9-HOT–insensitive mutant, and coronatine insensitive1-1 (jasmonate-insensitive) revealed at least three signaling cascades mediating the oxylipin actions. Treatment with 9-HOT resulted in a reduction in lateral roots and an increase in stage V primordia. Roots showed strong 9-lipoxygenase (9-LOX) activity, and root primordia expressed 9-LOX genes. These results, along with findings that noxy2 and mutants with defective 9-LOX activity showed increased numbers of lateral roots, suggest that 9-HOT, or a closely related 9-LOX product, is an endogenous modulator of lateral root formation. Histochemical and molecular analyses revealed that 9-HOT activated events common to development and defense responses. A subset of 9-HOT–responding root genes was also induced in leaves after 9-HOT treatment or pathogen inoculation. The results that noxy2 displayed altered root development, enhanced susceptibility to Pseudomonas, and reduced the activation of 9-HOT–responding genes are consistent with mechanistic links among these processes. The nature of the changes detected suggests that oxylipins from the 9-LOX pathway function in cell wall modifications required for lateral root development and pathogen arrest.
|
|
