Anonymization techniques for preserving data quality in participatory sensing
- Authors: Sabrina, Tishna , Murshed, Manzur , Iqbal, Anindya
- Date: 2016
- Type: Text , Conference paper
- Relation: 2016 IEEE 41st Conference on Local Computer Networks (LCN) p. 607-610
- Full Text: false
- Reviewed:
- Description: Participatory sensing is a revolutionary new paradigm where citizens voluntarily sense their surroundings using readily available sensing devices such as mobile phones and share this information for mutual benefit of community members. To encourage ample participation of users, ensuring their privacy is inevitable. Existing techniques that attempt to protect location privacy with spatial cloaking suffer from irrecoverable data quality degradation. To the best of our knowledge, very few works provided a solution preserving high data quality/utility at the destination server, however, suffered from unacceptable computational overhead. This paper presents an improved deterministic alternative and also a faster variant by exploiting several optimization issues. Theoretical formulations and extensive simulation results are presented to establish the applicability of our proposed techniques.
Privacy in participatory sensing systems
- Authors: Sabrina, Tishna , Murshed, Manzur
- Date: 2013
- Type: Text , Book chapter , Book
- Relation: Network and Traffic Engineering in Emerging Distributed Computing Applications. Chapter 6. pg 124-143
- Full Text: false
- Reviewed:
- Description: Participatory sensing is a revolutionary new paradigm where ordinary citizens voluntarily sense their environment using readily available sensor devices such as mobile phones and systematically study, and then reflect on and share this information using existing wireless networks. It provides data collection, processing, and dissemination opportunities for socially-responsible applications spanning environmental monitoring, intelligent transportation, and public health, which are often not cost-viable using dedicated sensing infrastructure. The uniqueness of the participatory sensing system lies in its data communication infrastructure which is constituted by the deliberate participation of community people. However, the potential lack of privacy of the participants in such system makes it harder to ensure their voluntary contribution. Thus preserving privacy of the individuals contributing data has introduced a key challenge in this area. On the other hand, data integrity is desired imperatively to make the service trustworthy and user-friendly. Different interesting approaches have been proposed so far to protect privacy that will encourage participation of the owners of data sources in turn.
Verifiable and privacy preserving electronic voting with untrusted machines
- Authors: Murshed, Manzur , Sabrina, Tishna , Iqbal, Anindya , Ali, Mortuza
- Date: 2013
- Type: Text , Conference proceedings
- Relation: Proceedings of the 12th IEEE International Conference on Trust, Security and Privacy in Computing and Communications (TrustCom 2013) Melbourne, Vic, 16-18th July, 2013 p. 798-804
- Full Text: false
- Reviewed:
- Description: Designing a trustworthy voting system that uses electronic voting machines (EVMs) for efficiency and accuracy is a challenging task. It is difficult, if not impossible, to ensure the trustworthiness of EVMs that possess computation, storage, and communication capabilities. Thus an electronic voting system that does not assume trusted EVMs is clearly desirable. In this paper, we have proposed a k-anonymized electronic voting scheme that achieves this goal by assuming a hardware-controlled trusted random number generator external to the EVM. The proposed scheme relies on a k-anonymization technique to protect privacy and resort to joint de-anonymization of the votes for counting. Since the joint de-anonymization takes into account all the votes, it is difficult to manipulate an individual vote, even by the EVM, without being detected. Besides the anonymization technique, the proposed scheme relies on standard cryptographic hashing and the concept of floating receipt to provide end-to-end verifiability that prevents coercion or vote trading.
Analysis of location privacy risk in a plain-text communication based participatory sensing system using subset coding and mix network
- Authors: Sabrina, Tishna , Murshed, Manzur
- Date: 2012
- Type: Text , Conference proceedings
- Full Text: false
A subset coding based k-anonymization technique to trade-off location privacy and data integrity in participatory sensing systems
- Authors: Murshed, Manzur , Iqbal, Anindya , Sabrina, Tishna , Alam, K.
- Date: 2011
- Type: Text , Conference paper
- Full Text: false
- Reviewed:
A novel anonymization technique to trade off location privacy and data integrity in participatory sensing systems
- Authors: Murshed, Manzur , Sabrina, Tishna , Iqbal, Anindya , Alam, K.
- Date: 2010
- Type: Text , Conference paper
- Relation: 2010 Fourth International Conference on Network and System Security p. 345-350
- Full Text: false
- Reviewed:
- Description: Abstract—Preserving privacy in participatory sensing systems has recently gained research interest as voluntary contribution in such systems is not worthy if the privacy of the participants is not protected. On the other hand, data integrity is desired imperatively to make the service trustworthy and user-friendly. In this paper, we have proposed an adaptive location anonymization technique, which is capable of retaining an acceptable level of data integrity while keeping its vulnerability to eavesdropping adversaries low. Experimental results establish the proposed concept as a superior approach in balancing, somehow orthogonal, user privacy and data integrity.