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Publicações

Publicações por Rolando Martins

2023

Skynet: a Cyber-Aware Intrusion Tolerant Overseer

Autores
Freitas, T; Soares, J; Correia, ME; Martins, R;

Publicação
53rd Annual IEEE/IFIP International Conference on Dependable Systems and Networks, DSN 2023 - Supplemental Volume, Porto, Portugal, June 27-30, 2023

Abstract
The increasing level of sophistication of cyber attacks which are employing cross-cutting strategies that leverage multi-domain attack surfaces, including but not limited to, software defined networking poisoning, biasing of machine learning models to suppress detection, exploiting software (development), and leveraging system design deficiencies.While current defensive solutions exist, they only partially address multi-domain and multi-stage attacks, thus rendering them ineffective to counter the upcoming generation of attacks. More specifically, we argue that a disruption is needed to approach separated knowledge domains, namely Intrusion Tolerant systems, cybersecurity, and machine learning.We argue that current solutions tend to address different concerns/facets of overlapping issues and they tend to make strong assumptions of supporting infrastructure, e.g., assuming that event probes/metrics are not compromised.To address these issues, we present Skynet, a platform that acts as a secure overseer that merges traditional roles of SIEMs with conventional orchestrators while being rooted on the fundamentals introduced by previous generations of intrusion tolerant systems. Our goal is to provide an open-source intrusion tolerant platform that can dynamically adapt to known and unknown security threats in order to reduce potential vulnerability windows. © 2023 IEEE.

2008

A peer-to-peer middleware platform for fault-tolerant, QoS, real-time computing

Autores
Martins, R; Lopes, LMB; Silva, FMA;

Publicação
Proceedings of the 2nd workshop on Middleware-application interaction - affiliated with the DisCoTec federated conferences 2008, MAI '08, Oslo, Norway, June 3, 2008

Abstract
In this paper we present the architecture of RTPM, a middle-ware framework aimed at supporting the development and management of information systems for high-speed public transportation systems. The framework is based on a peer-to-peer overlay infrastructure with the main focus being on providing a scalable, resilient, reconfigurable, highly available platform for real-time and QoS computing. Copyright 2008 ACM.

2010

Lightweight Fault-Tolerance for Peer-to-Peer Middleware

Autores
Martins, R; Narasimhan, P; Lopes, L; Silva, F;

Publicação
2010 29TH IEEE INTERNATIONAL SYMPOSIUM ON RELIABLE DISTRIBUTED SYSTEMS SRDS 2010

Abstract
We address the problem of providing transparent, lightweight, fault-tolerance mechanisms for generic peer-to-peer middleware systems. The main idea is to use the peer-to-peer overlay to provide for fault-tolerance rather than support it higher up in the middleware architecture, e.g. in the form of services. To evaluate our approach we have implemented a fault-tolerant middleware prototype that uses a hierarchical peer-to-peer overlay in which the leaf peers connect to sensors that provide data streams. Clients connect to the root of the overlay and request streams that are routed upwards through intermediate peers in the overlay up to the client. We report encouraging preliminary results for latency, jitter and resource consumption for both the non-faulty and faulty cases.

2003

YapDss: An Or-parallel prolog system for scalable Beowulf clusters

Autores
Rocha, R; Silva, F; Martins, R;

Publicação
PROGRESS IN ARTIFICIAL INTELLIGENCE

Abstract
This paper discusses the design of YapDss, an or-parallel Prolog system for distributed memory parallel machines, such as the Beowulf PC clusters. The system builds on the work of YapOr, an or-parallel system for shared memory machines, and uses the distributed stack splitting binding model to represent computation state and work sharing among the computational workers. A new variant scheme of stack splitting, the diagonal splitting, is proposed and implemented. This scheme includes efficient algorithms to balance work load among computing workers, to determine the bottommost common node between two workers, and to calculate exactly the work load of one worker. An initial evaluation of the system shows that it is able to achieve very good speedups on a Beowulf PC cluster.

2023

HAL 9000: Skynet's Risk Manager

Autores
Freitas, T; Serra Neto, MTR; Dutra, I; Soares, J; Correia, ME; Martins, R;

Publicação
CoRR

Abstract

2018

Proceedings of the 3rd Workshop on Middleware for Edge Clouds & Cloudlets, MECC@Middleware 2018, Rennes, France, December 11, 2018

Autores
Martins, R; Paulino, H; Veiga, L;

Publicação
MECC@Middleware

Abstract

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