scholarly journals PROTECT: Privacy-preserving Contact Tracing for COVID-19 with Homomorphic Encryption (Preprint)

2021 ◽  
Author(s):  
Yongdae An ◽  
Seungmyung Lee ◽  
Seungwoo Jung ◽  
Howard Park ◽  
Yongsoo Song ◽  
...  

BACKGROUND Various techniques are employed in order to support contact tracing, which has been shown to be highly effective against the pandemic of coronavirus disease 2019 (COVID-19). To apply the technology, either the quarantine authorities should provide the location history COVID-19 patients, or all people should provide their own location history. This inevitably makes people either the patient location history or personal location history of the public, leading to the privacy protection issue of information release for the public good against privacy exposure risks. OBJECTIVE The objective of this study is to develop an effective contact tracing system without exposing the location information between the user and the quarantine authorities with COVID-19 patient location history. METHODS We propose a new protocol called PRivacy Oriented Technique for Epidemic Contact Tracing (PROTECT) that securely shares the location information of patients with users by using the Brakerski/Fan-Vercauteren (BFV) homomorphic encryption scheme, along with a new secure proximity computation method for it. RESULTS We have developed a mobile application for the end-user and a web service for the quarantine authorities by applying the proposed method and have verified their effectiveness. Proposed application and web service compute the existence of intersections between the encrypted location history of COVID-19 patients released by the quarantine authorities and the user location history saved on the local device. We also show that the developed contact tracing application can identify whether the user is in contact with patients within a reasonable time on smartphones. CONCLUSIONS The developed method that shares the location information encrypted with homomorphic encryption is a new method for contact tracing without exposing the location information of the COVID-19 patients and the users. Homomorphic encryption is difficult to apply to practical issues despite its high security value. This study, however, has designed a system applicable to a reasonable size using the BFV scheme, and developed it to an operable format. The developed application and web service can help contact tracing for not only COVID-19, but also other various epidemics.

2020 ◽  
Vol 01 (01) ◽  
pp. 73-87
Author(s):  
Benran Jiang ◽  
Wei Li ◽  
Ting Yuan

The COVID-19 pandemic has been a global health emergency. In the absence of effective pharmaceutical interventions and vaccine, long-term community risk mitigation strategies are crucial to prevent and control the resurgence of the epidemic in China. A multi-level, region-specific and dynamic approach has been applied to ensure early detection, quick response, effective contact tracing and management, and targeted prevention and control on the basis of risk levels. Science popularization of the public health measures in the community is also an important strategy to curb the risk of pandemic.


Author(s):  
Valentina M. Patutkina

The article is dedicated to unknown page in the library history of Ulyanovsk region. The author writes about the role of Trusteeship on people temperance in opening of libraries. The history of public library organized in the beginning of XX century in the Tagai village of Simbirsk district in Simbirsk province is renewed.


Author(s):  
Bashkim Selmani ◽  
Bekim Maksuti

The profound changes within the Albanian society, including Albania, Kosovo and Macedonia, before and after they proclaimed independence (in exception of Albania), with the establishment of the parliamentary system resulted in mass spread social negative consequences such as crime, drugs, prostitution, child beggars on the street etc. As a result of these occurred circumstances emerged a substantial need for changes within the legal system in order to meet and achieve the European standards or behaviors and the need for adoption of many laws imported from abroad, but without actually reading the factual situation of the psycho-economic position of the citizens and the consequences of the peoples’ occupations without proper compensation, as a remedy for the victims of war or peace in these countries. The sad truth is that the perpetrators not only weren’t sanctioned, but these regions remained an untouched haven for further development of criminal activities, be it from the public state officials through property privatization or in the private field. The organized crime groups, almost in all cases, are perceived by the human mind as “Mafia” and it is a fact that this cannot be denied easily. The widely spread term “Mafia” is mostly known around the world to define criminal organizations.The Balkan Peninsula is highly involved in these illegal groups of organized crime whose practice of criminal activities is largely extended through the Balkan countries such as Kosovo, Albania, Macedonia, Serbia, Bosnia, Croatia, Montenegro, etc. Many factors contributed to these strategic countries to be part of these types of activities. In general, some of the countries have been affected more specifically, but in all of the abovementioned countries organized crime has affected all areas of life, leaving a black mark in the history of these states.


2009 ◽  
Vol 160 (8) ◽  
pp. 232-234
Author(s):  
Patrik Fouvy

The history of the forests in canton Geneva, having led to these being disconnected from productive functions, provides a symptomatic demonstration that the services provided by the forest eco-system are common goods. Having no hope of financial returns in the near future and faced with increasing social demands, the state has invested in the purchase of forest land, financed projects for forest regeneration and improvement of biological diversity and developed infrastructures for visitors. In doing this the state as a public body takes on the provision of services in the public interest. But the further funding for this and for expenses for the private forests, which must be taken into account, are not secured for the future.


2018 ◽  
Vol 10 (1) ◽  
pp. 19-26 ◽  
Author(s):  
Muhammad Iqbal Perkasa ◽  
Eko Budi Setiawan

Data is one of the most important things in this information and information technology era that evolving now. Currently, the government still has not used the public data maximally for administrative purposes. Utilization of this big population data is the creation of a web service application system with REST API where this data will be open and accessible to those who have access. One of the institutions that use this service is the Manpower and Transmigration Service where this system can make the Dinas staff more efficient to create and register job search cards using available community data. This application is able to provide and facilitate many parties, such as data administrators to monitor data usage, registration employee in input data, and people able to register independently. Index Terms—Web service, API, Rest api, People data


Author(s):  
Floor Haalboom

This article argues for more extensive attention by environmental historians to the role of agriculture and animals in twentieth-century industrialisation and globalisation. To contribute to this aim, this article focuses on the animal feed that enabled the rise of ‘factory farming’ and its ‘shadow places’, by analysing the history of fishmeal. The article links the story of feeding fish to pigs and chickens in one country in the global north (the Netherlands), to that of fishmeal producing countries in the global south (Peru, Chile and Angola in particular) from 1954 to 1975. Analysis of new source material about fishmeal consumption from this period shows that it saw a shift to fishmeal production in the global south rather than the global north, and a boom and bust in the global supply of fishmeal in general and its use in Dutch pigs and poultry farms in particular. Moreover, in different ways, the ocean, and production and consumption places of fishmeal functioned as shadow places of this commodity. The public health, ecological and social impacts of fishmeal – which were a consequence of its cheapness as a feed ingredient – were largely invisible on the other side of the world, until changes in the marine ecosystem of the Pacific Humboldt Current and the large fishmeal crisis of 1972–1973 suddenly changed this.


2018 ◽  
Vol 28 (1) ◽  
pp. 201-207
Author(s):  
Kamen Kirilov

Globalization, commodity parity, consumer sovereignty, super competition and a broad variety of other factors, including the roll-out of the mass media, the emergence and rapid rise of the new media formats and platforms as well as the exchange of information provided by social networks pose new challenges for the advertising industry. Throughout its 150 years of history, since we have known it as a distinct occupation and practice, advertising shows adaptive sustainability quality and greatly enhance its capacity as features, forms, user approaches and distribution channels. Nevertheless, by its very nature, advertising retains the constant of an asymmetric pattern of communication in which, in nowadays environment, the success of effort is expressed in the formula of understanding others and the willingness they to understand us in return. In practice, beyond the abstract of this formula, the effort of advertisers in the process of creating and planning a certain campaign would be greatly facilitated by putting the basic principles of empathy theory. Numerous experiments and studies of this human ability establish working models to achieve effective contact both at the level of personal communication and in the cases of direct and indirect communication with huge quantity and variety of audiences with specific composition. Synthesized and brought to a universal level of application, the basic principle of empathy is the ability, rather cognitive than emotional, to understand and to feel the feelings of others. The achievements in this psychology field currently apply mainly to psychotherapy, clinical psychiatry, pedagogy and political rhetoric theories and ractices. Experience proves that empathic skills help the communicator for faster, easier, more effective and more properly understood and accordingly more efficient as a moderator. This article provokes a new paradigm for advertisers in communicating with the public - about the content, forms and planning of communication activities of the principles of empathy. The goal of the effort is clear - creating more effective communication and achieving a sustainablecompetitive advantage.


2020 ◽  
pp. 95-99
Author(s):  
R. G. Kalustov

The article discusses the emergence and development, as well as existing approaches to understanding the concept of “public order”. The history of the formation of this category is examined by analyzing regulatory legal acts. This method allows you to track the change in value and determine how to correctly understand the “public order” today. Revealing the concept, ambiguity arises in understanding this category, in connection with which the most applicable approach is currently determined for use in practice by law enforcement agencies.


2020 ◽  
Vol 2 ◽  
pp. 1-18
Author(s):  
Tuncay Şur ◽  
Betül Yarar

This paper seeks to understand why there has been an increase in photographic images exposing military violence or displaying bodies killed by military forces and how they can freely circulate in the public without being censored or kept hidden. In other words, it aims to analyze this particular issue as a symptom of the emergence of new wars and a new regime of their visual representation. Within this framework, it attempts to relate two kinds of literature that are namely the history of war and war photography with the bridge of theoretical discussions on the real, its photographic representation, power, and violence.  Rather than systematic empirical analysis, the paper is based on a theoretical attempt which is reflected on some socio-political observations in the Middle East where there has been ongoing wars or new wars. The core discussion of the paper is supported by a brief analysis of some illustrative photographic images that are served through the social media under the circumstances of war for instance in Turkey between Turkish military troops and the Kurdish militants. The paper concludes that in line with the process of dissolution/transformation of the old nation-state formations and globalization, the mechanism and mode of power have also transformed to the extent that it resulted in the emergence of new wars. This is one dynamic that we need to recognize in relation to the above-mentioned question, the other is the impact of social media in not only delivering but also receiving war photographies. Today these changes have led the emergence of new machinery of power in which the old modern visual/photographic techniques of representing wars without human beings, torture, and violence through censorship began to be employed alongside medieval power techniques of a visual exhibition of tortures and violence.


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