PASPORT: A Secure and Private Location Proof Generation and Verification Framework

User’s location privacy concerns have been further raised by today’s Wi-Fi technology omnipresence. Preferred Network Lists (PNLs) are a particularly interesting source of private location information, as devices are storing a list of previously used hotspots. Privacy implications of a disclosed PNL have been covered by numerous papers, mostly focusing on passive monitoring attacks. Nowadays, however, more and more devices no longer transmit their PNL in clear, thus mitigating passive attacks. Hidden PNLs are still vulnerable against active attacks whereby an attacker mounts a fake SSID hotspot set to one likely contained within targeted PNL. If the targeted device has this SSID in the corresponding PNL, it will automatically initiate a connection with the fake hotspot thus disclosing this information to the attacker. By iterating through different SSIDs (from a predefined dictionary) the attacker can eventually reveal a big part of the hidden PNL. Considering user mobility, executing active attacks usually has to be done within a short opportunity window, while targeting nontrivial SSIDs from user’s PNL. The existing work on active attacks against hidden PNLs often neglects both of these challenges. In this paper we propose a simple mathematical model for analyzing active SSID dictionary attacks, allowing us to optimize the effectiveness of the attack under the above constraints (limited window of opportunity and targeting nontrivial SSIDs). Additionally, we showcase an example method for building an effective SSID dictionary using top-N recommender algorithm and validate our model through simulations and extensive real-life tests.

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Abstract 15: Public Access Defibrillators: Sex-Based Inequities in Access and Application

Circulation ◽

10.1161/circ.140.suppl_2.15 ◽

2019 ◽

Vol 140 (Suppl_2) ◽

Author(s):

Brian E Grunau ◽

Emad Awad ◽

Takahisa Kawano ◽

Frank Scheuermeyer ◽

Robert Stenstrom ◽

...

Keyword(s):

Healthcare Facility ◽

Public Access ◽

Home Healthcare ◽

Healthcare Facilities ◽

Public Property ◽

The North ◽

Private Location ◽

Residential Institutions ◽

Adjusted Logistic Regression ◽

Location Type

Introduction: It is unclear if the benefits of public access defibrillator (PAD) programs are similar between men and women. We investigated the location of out-of-hospital cardiac arrests (OHCA) stratified by sex to determine what proportion was eligible for PAD application. Second, we sought to determine if patient sex was associated with PAD utilization. Methods: We analyzed prospectively collected data from the North American Resuscitation Outcomes Consortium (ROC) Epistry dataset (2011 - 2015), excluding emergency medical services (EMS)-witnessed cases, those not treated by EMS, and children aged less than 10. We compared sex-based differences in public vs private location, and location type (street or highway, public building, place of recreation, industrial place, home residence, farm or ranch, healthcare facility, residential institution, other public property, or other private location). Among public location OHCAs with bystander interventions, we fit an adjusted logistic regression model to estimate the association between sex and PAD application. Results: Among the 61,473 cases, 20,933 (34%) were female, 30,353 had resuscitation attempted by bystander, and 13,597 had initial shockable rhythms. The OHCA incidence in a public location for women and men was 8.8% and 18%, respectively (95% CI for difference 8.7 - 9.7). Women had a significantly lower proportion of OHCAs on the street/highway, in public buildings, places of recreation, and farms, but a significantly higher proportion in the home, healthcare facilities, and residential institutions. Among public location OHCAs with bystander interventions, female sex was associated with a lower odds of bystander PAD application (adjusted OR 0.83, 95% CI 0.70-0.99). Conclusion: Women had fewer OHCAs in public locations eligible for PAD application. Further, among public OHCAs with bystander interventions, women were less likely to have PADs applied.

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Differentially Private Location Preservation with Staircase Mechanism Under Temporal Correlations

Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering - Collaborative Computing: Networking, Applications and Worksharing ◽

10.1007/978-3-030-67540-0_5 ◽

2021 ◽

pp. 75-92

Author(s):

Rong Fang ◽

Jianmin Han ◽

Juan Yu ◽

Xin Yao ◽

Hao Peng ◽

...

Keyword(s):

Temporal Correlations ◽

Private Location

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The listening guide: voice-centred-relational analysis of private subjectivities

Qualitative Market Research An International Journal ◽

10.1108/qmr-04-2019-0052 ◽

2020 ◽

Vol ahead-of-print (ahead-of-print) ◽

Cited By ~ 1

Author(s):

Martina Hutton ◽

Charlotte Lystor

Keyword(s):

Analytical Approach ◽

Sense Of Self ◽

Listening Guide ◽

Family Research ◽

Relational Dynamics ◽

Content Type ◽

Private Location ◽

Private And Public ◽

Relations Of Power ◽

The Listening Guide

Purpose This paper focuses on the analytical importance of voice and the value of listening and representing voices in private contexts. It highlights the under-theorised position of relationality in family research. The paper introduces the listening guide as a unique analytical approach to sharpen researchers’ understanding of private experiences and articulations. Design/methodology/approach This is a conceptual and technical paper. It problematises voice, authority and analytical representation in the private location of family and examines how relational dynamics interact with the subtleties of voice in research. It also provides a practical illustration of the listening guide detailing how researchers can use this analytical approach. Findings The paper illustrates how the listening guide works as an analytical method, structured around four stages and applied to interview transcript excerpts. Practical implications The listening guide bridges private and public knowledge-making, by identifying competing voices and recognises relations of power in family research. It provides qualitative market researchers with an analytical tool to hear changes and continuities in participants’ sense of self over time. Social implications The paper highlights how peripheral voices and silence can be analytically surfaced in private domains. A variety of studies and data can be explored with this approach, however, research questions involving vulnerable or marginal experiences are particularly suitable. Originality/value The paper presents the listening guide as a novel analytic method for researching family life – one, which recovers the importance of voice and serves as a means to address the lack of debate on voice and authority in qualitative market research. It also highlights the under-theorised position of relationality in tracing the multiple subjectivities of research participants. It interrupts conventional qualitative analysis methods, directing attention away from conventional coding and towards listening as an alternative route to knowledge.

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I Am Alice, I Was in Wonderland: Secure Location Proof Generation and Verification Protocol

2016 IEEE 41st Conference on Local Computer Networks (LCN) ◽

10.1109/lcn.2016.126 ◽

2016 ◽

Cited By ~ 8

Author(s):

Chitra Javali ◽

Girish Revadigar ◽

Kasper B. Rasmussen ◽

Wen Hu ◽

Sanjay Jha

Keyword(s):

Location Proof

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The Case of the Silk-Stocking Socialists and the Calculating Children of the Middle Class

British Journal of Political Science ◽

10.1017/s0007123400002945 ◽

1982 ◽

Vol 12 (2) ◽

pp. 239-248 ◽

Cited By ~ 6

Author(s):

James E. Alt ◽

Janet Turner

Keyword(s):

Social Class ◽

Public Sector ◽

Recent Literature ◽

The Political ◽

Simple Extension ◽

Voting Behaviour ◽

Occupational Structure ◽

Political Behaviour ◽

Private Location ◽

Recent Developments

Recent developments in the political behaviour of the British electorate have called into question the once-prevalent view that class was what counted when it came to voting and all else was ‘embellishment and detail’. Two streams of thought dominate the recent literature. One notes the continuing prominence of social class in the context of voting behaviour, but stresses the extent to which class is no longer expressable as a simple function of occupation (manual and non-manual), but instead requires paying attention to such aspects of lifestyle as tenancy patterns. The other, best exemplified in Dunleavy's recent work, pays less attention to individual lifestyle and emphasizes instead the extent to which changes in the occupational structure (particularly sectoral location and unionization) have altered the political meaning of workplace (‘production’) locations. The theoretical interest in sectoral location arises from the growth of public sector employment since the early 1960s and the increase in public sector labour militancy in the early 1970s. According to this view, partisan choice is influenced by sectoral location and by union membership, which is itself not a matter of lifestyle nor a simple extension of social class, but is bound up with sectoral (public/corporate/small private) location of occupation.

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