Along with the convenience that came with the penetration of electronic transactions and services... more Along with the convenience that came with the penetration of electronic transactions and services into our everyday life, new security and privacy threats have been emerging. The necessity of employing privacy-preserving technologies in order to avoid online surveillance is getting more and more attention. In this regard, the EU project ABC4Trust 2 has been the pioneer to deploy the first ever trial of Privacy Preserving Attribute-based Credentials (Privacy-ABCs) in real life environment. In this paper, we provide an overview of the state of ABC4Trust's work in the design and development of the ABC4Trust architecture as well as the integration of smartcards into the deployed pilots.
Privacy-preserving Attribute-based Credentials (Privacy-ABCs) are powerful techniques to provide ... more Privacy-preserving Attribute-based Credentials (Privacy-ABCs) are powerful techniques to provide secure privacy-respecting access control and cope with minimal disclosure of attributes as well as partial identities. The ABC4Trust EU Project has designed a generic architecture model that abstracts away the cryptographic details of Privacy-ABC technologies and provides well-defined APIs to the application developers. To further demonstrate the applicability of Privacy-ABCs and also verify the implementation of the proposed architecture, the ABC4Trust Project launched two pilots in Greece and Sweden. In this paper, we report on the design of the School Community Interaction Platform as the pilot application in Sweden. The platform was developed as a web-based application to be used for chat communication, counseling, political discussions and the exchange of authentic sensitive, personal data between pupils, parents, and such school personnel as teachers, nurses, and so on, in a privacy-respecting way.
Privacy-ABCs to Leverage Identity Management as a Service
Along with the rapid growth in adoption of cloud services, there have been developments towards a... more Along with the rapid growth in adoption of cloud services, there have been developments towards a new emerging concept, called Identity Management as a Service. As the internal IT systems were not designed for externals, the IT solutions from the cloud can solve the challenges of connecting the enterprises to the outer world and consequently, bring all the benefits of the cloud-based services to them. However, the other side of the coin of moving towards outsourcing identity infrastructure is a set of privacy and security challenges that cannot be neglected. In this paper, we propose an architectural model based on Privacy Preserving Attribute-based Credentials, and show how we can benefit from the advantages of Privacy-ABCs to help the concept of Identity Management as a Service, and address the privacy concerns that it raises.
PEPPeR: A Querier's Privacy Enhancing Protocol for PaRticipatory Sensing
In this work we study the problem of querier privacy in the Participatory Sensing domain. While p... more In this work we study the problem of querier privacy in the Participatory Sensing domain. While prior work has attempted to protect the privacy of people contributing sensing data from their mobile phones, little or no work has focused on the problem of querier privacy. Motivated by a novel communication model in which clients may directly query participatory sensing networks operated by potentially untrusted adversaries, we propose PEPPeR, a protocol for privacy-preserving access control in participatory sensing applications that focuses on the privacy of the querier. Contrary to past solutions, PEPPeR enables queriers to have access to the data provided by participating users without placing any trust in third parties or reducing the scope of queries. Additionally, our approach naturally extends the traditional pull/push models of participatory sensing and integrates nicely with mobile social networks, a new breed of sensing which combines mobile sensor devices with personal sensing environments.
The rapid growth of communication infrastructures and enterprise software solutions has caused el... more The rapid growth of communication infrastructures and enterprise software solutions has caused electronic services to penetrate into our everyday life. So it is not far from reality that many personal and trust-sensitive transactions happen online. In this regard, one of the biggest challenges to deal with will be proper user authentication and access control, as strong authentication and authorization techniques used nowadays are double-edged swords: while they can protect service providers by offering a satisfactory level of resilience against unauthorized accesses, most of these technologies have the drawback of threatening the clients’ privacy.
Page 1. Prediction of Protein Secondary Structure Based on NMR Chemical Shift Data Using Support ... more Page 1. Prediction of Protein Secondary Structure Based on NMR Chemical Shift Data Using Support Vector Machines Ahmad Sabouri Information Networking Institute Carnegie Mellon University Pittsburgh, PA, USA Email: [email protected] ...
In this work we study the problem of query privacy in large scale sensor networks. Motivated by a... more In this work we study the problem of query privacy in large scale sensor networks. Motivated by a novel trust model in which clients query networks owned by trusted entities but operated by potentially untrusted adversaries, we consider several proposals for protecting the identities of the queried sensors.
Along with the convenience that came with the penetration of electronic transactions and services... more Along with the convenience that came with the penetration of electronic transactions and services into our everyday life, new security and privacy threats have been emerging. The necessity of employing privacy-preserving technologies in order to avoid online surveillance is getting more and more attention. In this regard, the EU project ABC4Trust 2 has been the pioneer to deploy the first ever trial of Privacy Preserving Attribute-based Credentials (Privacy-ABCs) in real life environment. In this paper, we provide an overview of the state of ABC4Trust's work in the design and development of the ABC4Trust architecture as well as the integration of smartcards into the deployed pilots.
Privacy-preserving Attribute-based Credentials (Privacy-ABCs) are powerful techniques to provide ... more Privacy-preserving Attribute-based Credentials (Privacy-ABCs) are powerful techniques to provide secure privacy-respecting access control and cope with minimal disclosure of attributes as well as partial identities. The ABC4Trust EU Project has designed a generic architecture model that abstracts away the cryptographic details of Privacy-ABC technologies and provides well-defined APIs to the application developers. To further demonstrate the applicability of Privacy-ABCs and also verify the implementation of the proposed architecture, the ABC4Trust Project launched two pilots in Greece and Sweden. In this paper, we report on the design of the School Community Interaction Platform as the pilot application in Sweden. The platform was developed as a web-based application to be used for chat communication, counseling, political discussions and the exchange of authentic sensitive, personal data between pupils, parents, and such school personnel as teachers, nurses, and so on, in a privacy-respecting way.
Privacy-ABCs to Leverage Identity Management as a Service
Along with the rapid growth in adoption of cloud services, there have been developments towards a... more Along with the rapid growth in adoption of cloud services, there have been developments towards a new emerging concept, called Identity Management as a Service. As the internal IT systems were not designed for externals, the IT solutions from the cloud can solve the challenges of connecting the enterprises to the outer world and consequently, bring all the benefits of the cloud-based services to them. However, the other side of the coin of moving towards outsourcing identity infrastructure is a set of privacy and security challenges that cannot be neglected. In this paper, we propose an architectural model based on Privacy Preserving Attribute-based Credentials, and show how we can benefit from the advantages of Privacy-ABCs to help the concept of Identity Management as a Service, and address the privacy concerns that it raises.
PEPPeR: A Querier's Privacy Enhancing Protocol for PaRticipatory Sensing
In this work we study the problem of querier privacy in the Participatory Sensing domain. While p... more In this work we study the problem of querier privacy in the Participatory Sensing domain. While prior work has attempted to protect the privacy of people contributing sensing data from their mobile phones, little or no work has focused on the problem of querier privacy. Motivated by a novel communication model in which clients may directly query participatory sensing networks operated by potentially untrusted adversaries, we propose PEPPeR, a protocol for privacy-preserving access control in participatory sensing applications that focuses on the privacy of the querier. Contrary to past solutions, PEPPeR enables queriers to have access to the data provided by participating users without placing any trust in third parties or reducing the scope of queries. Additionally, our approach naturally extends the traditional pull/push models of participatory sensing and integrates nicely with mobile social networks, a new breed of sensing which combines mobile sensor devices with personal sensing environments.
The rapid growth of communication infrastructures and enterprise software solutions has caused el... more The rapid growth of communication infrastructures and enterprise software solutions has caused electronic services to penetrate into our everyday life. So it is not far from reality that many personal and trust-sensitive transactions happen online. In this regard, one of the biggest challenges to deal with will be proper user authentication and access control, as strong authentication and authorization techniques used nowadays are double-edged swords: while they can protect service providers by offering a satisfactory level of resilience against unauthorized accesses, most of these technologies have the drawback of threatening the clients’ privacy.
Page 1. Prediction of Protein Secondary Structure Based on NMR Chemical Shift Data Using Support ... more Page 1. Prediction of Protein Secondary Structure Based on NMR Chemical Shift Data Using Support Vector Machines Ahmad Sabouri Information Networking Institute Carnegie Mellon University Pittsburgh, PA, USA Email: [email protected] ...
In this work we study the problem of query privacy in large scale sensor networks. Motivated by a... more In this work we study the problem of query privacy in large scale sensor networks. Motivated by a novel trust model in which clients query networks owned by trusted entities but operated by potentially untrusted adversaries, we consider several proposals for protecting the identities of the queried sensors.
This thesis is dedicated to my family, and especially my brother who never left me alone. There i... more This thesis is dedicated to my family, and especially my brother who never left me alone. There is no doubt in my mind that without their continued support and counsel I could not have completed this process.
Uploads
Books by Ahmad Sabouri
Papers by Ahmad Sabouri