Detection of Unspecified Emergencies for Controlled Information Sharing

Carminati, Barbara; Ferrari, Elena; Guglielmi, Michele

doi:10.1109/tdsc.2015.2427846

Cited by 7 publications

(7 citation statements)

References 18 publications

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“…As a first task, it has to inquiry the Device register through an Oracle (Query DeviceRegister in the algorithm) in order to retrieve, for each n ∈ N , the list of devices able to carry out n, called Candidate Device List (CDL n in the algorithm) (lines . Once this information is retrieved, for each node n in N , Assigner has to evaluate each device in CDL n to select only those that satisfy the application search criteria (i.e., local, global and blacklist) specified in N app for n, say C a (lines [16][17][18][19][20][21][22][23][24][25]. As a first step, it checks whether the considered device D, aka its providers, is not included into the blacklist specified in C a (line 16).…”

Section: B Algorithmsmentioning

confidence: 99%

“…if A similar process is done to evaluate the global constraints contained in C a (lines [19][20][21][22][23][24][25]. If the considered device D satisfies both the global and local constraints, it is inserted into the Selected Device List (SDL n in the algorithm).…”

Section: B Algorithmsmentioning

confidence: 99%

“…An example of these distance metrics can be found in[19], where it is analyzed how much an access request is close to satisfy an access control policy.…”

mentioning

confidence: 99%

See 2 more Smart Citations

Confidential Discovery of IoT Devices through Blockchain

Rondanini¹,

Carminati²,

Ferrari³

2019

2019 IEEE International Congress on Internet of Things (ICIOT)

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Selection criteria regulating IoT device discovery involve confidentiality issue on the information the constraints convey. A promising approach to cope with this issue is leveraging on blockchain technology and smart contracts to implement the overall discovery process deployment. However, due to the blockchain design, data within the blockchain is public and smart contracts cannot access data outside the blockchain, unless through the exploitation of Oracles. On the one hand, this brings benefits of trust decentralization, transparency, and accountability of the discovery process. On the other hand, it carries serious consequences on confidentiality and privacy as well as on Oracles trustworthiness. For these reasons, in this paper, we investigate how to ensure data confidentiality during the discovery process of IoT devices on blockchain even in the presence of an untrusted Oracle.

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Section: B Algorithmsmentioning

confidence: 99%

Section: B Algorithmsmentioning

confidence: 99%

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Confidential Discovery of IoT Devices through Blockchain

Rondanini¹,

Carminati²,

Ferrari³

2019

2019 IEEE International Congress on Internet of Things (ICIOT)

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“…A confiança do nó x em relação à competência do nó y (T Skill xy ) é computada pela verificação da similaridade da sua competência em relação a do médico, considerada pelo STEALTH a mais elevada em saúde e estabelecida a partir da taxonomia de competências (T ), baseada em [Carminati et al 2016] Por exemplo, considere que um nó x avalia a confiança sobre um nó y, T xy , cuja competência atribuída é de cuidador e ambos possuem um único interesse saúde. Empregando-se uma taxonomia de competências em saúde baseada em [Carminati et al 2016] e [Mohammad and Hirst 2012] xy = 1, o valor da confiança de x em y, T xy , será de 0,5.…”

Section: Medição Da Confiançaunclassified

Disseminação Robusta de Dados Pessoais Sensíveis Baseada em Comunidade de Interesse e Conﬁança Social para Suportar Situações Emergenciais de Saúde

Batista¹,

Nogueira²,

Santos³

2019

Anais Do XIX Simpósio Brasileiro De Segurança Da Informação E De Sistemas Computacionais (SBSeg 2019)

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Os serviços de saúde em redes (e-health) lidam com dados pessoais sensíveis, que devem ser preservados na entrega e do acesso não autorizado. Os mecanismos de controle de disseminação atualmente se voltam principalmente aos ambientes de saúde estruturados, como hospitais, mas ainda não atendem adequadamente nos momentos entre o surgimento de uma emergência e o seu atendimento em ambientes urbanos dinâmicos, como ruas e avenidas. Aspectos sociais das pessoas e de suas relações contribuem para a entrega conﬁável desses dados. Este trabalho apresenta STEALTH, um sistema que emprega conﬁança social e comunidades de interesse (CoI) para controlar a disseminação dos dados sensíveis das pessoas em situações emergenciais em ambientes dinâmicos. Simulações no NS-3 demonstram sua capacidade de assegurar a disseminação de dados sensíveis às pessoas que possam contribuir para um atendimento eﬁciente. STEALTH obteve uma conﬁabilidade de até 80% no acesso aos dados disseminados, uma latência máxima de 95ms e uma disponibilidade de até 98,8% para atender situações emergenciais.

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“…This can be achieved by using a DC power transmission scheme, and installing a static reactive power compensation device in order to support the voltage [14], [15]. However, these measures often need to be completed in the initial stages of power grid planning and construction, and are frequently limited by funds, policy, geography and other factors [16]- [21]. Secondary system means usually involve increasing a system's damping.…”

Section: Introductionmentioning

confidence: 99%

A New Technology Applied to Power System Stability Control: Phase Sequence Exchange Technology

Huang

et al. 2019

IEEE Access

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AC transmission systems are often affected by stability issues. During the design phase of such systems, their ability to cope with the various kinds of disturbance is taken into consideration, however, sudden large disturbances may still result in power angle instability, which can greatly increase the risk of an overarching power system break down. Therefore, the development of a safety protection system is a priority in the field of power system construction. In response to this problem, we propose a new exploratory solution strategy -Phase Sequence Exchange Technology (PSET). The PSET can be summarized as follows: when the power angle of an equivalent dual power supply system swings to a suitable angle between 90 • and 180 • , disconnect the primary side phase of the communication line by power electronic equipment and causing the swift misalignment of the connection. The A, B, C three-phase sequence then, connects to the three-phase C, A, B sequence. The PSET instantaneously realizes this change and reduces the power angle by 120 • , pulling the formerly increasing power angle back to a smaller angle and preventing the system from becoming imbalanced. In this paper, the mechanism which improves the stability of the PSET is explained by using the equal area rule. The threshold of the PSET work angle is determined by the energy function and the unbalanced potential energy in the system that can be effectively reduced by the PSET. Based on these findings, the phase trajectory method is used to determine the evaluation criteria for the PSET. This allows us to establish whether the PSET is effective by examining the state of the system after the fault is removed. Finally, an example is given in order to verify the effectiveness of the PSET and to prove that PSET is able to prevent the system from becoming imbalanced while still maintaining its structural integrity.INDEX TERMS Transient stability emergency control, phase sequence exchange technology, power electronic equipment, effective criterion.

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Detection of Unspecified Emergencies for Controlled Information Sharing

Cited by 7 publications

References 18 publications

Confidential Discovery of IoT Devices through Blockchain

Confidential Discovery of IoT Devices through Blockchain

Disseminação Robusta de Dados Pessoais Sensíveis Baseada em Comunidade de Interesse e Conﬁança Social para Suportar Situações Emergenciais de Saúde

A New Technology Applied to Power System Stability Control: Phase Sequence Exchange Technology

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