8 citations · 17 across the 11 of their papers we have counts for
10 papers · 1 filter
Zero-Knowledge Proof-based Practical Federated Learning on Blockchain
Zhibo Xing, Zijian Zhang, Meng Li +4
Since the concern of privacy leakage extremely discourages user participation in sharing data, federated learning has gradually become a promising technique for both academia and i…
Towards a Theory of Special-purpose Program Obfuscation
Muhammad Rizwan Asghar, Steven Galbraith, Andrea Lanzi +2
Most recent theoretical literature on program obfuscation is based on notions like Virtual Black Box (VBB) obfuscation and indistinguishability Obfuscation (iO). These notions are…
Privacy-preserving Searchable Databases with Controllable Leakage
Shujie Cui, Xiangfu Song, Muhammad Rizwan Asghar +2
Searchable Encryption (SE) is a technique that allows Cloud Service Providers (CSPs) to search over encrypted datasets without learning the content of queries and records. In recen…
Finding Rats in Cats: Detecting Stealthy Attacks using Group Anomaly Detection
Aditya Kuppa, Slawomir Grzonkowski, Muhammad Rizwan Asghar +1
Advanced attack campaigns span across multiple stages and stay stealthy for long time periods. There is a growing trend of attackers using off-the-shelf tools and pre-installed sys…
AuthStore: Password-based Authentication and Encrypted Data Storage in Untrusted Environments
Clemens Zeidler, Muhammad Rizwan Asghar
Passwords are widely used for client to server authentication as well as for encrypting data stored in untrusted environments, such as cloud storage. Both, authentication and encry…
PRIMA: Privacy-Preserving Identity and Access Management at Internet-Scale
Muhammad Rizwan Asghar, Michael Backes, Milivoj Simeonovski
The management of identities on the Internet has evolved from the traditional approach (where each service provider stores and manages identities) to a federated identity managemen…
A Survey on Routing in Anonymous Communication Protocols
Fatemeh Shirazi, Milivoj Simeonovski, Muhammad Rizwan Asghar +2
The Internet has undergone dramatic changes in the past 15 years, and now forms a global communication platform that billions of users rely on for their daily activities. While thi…
Oblivion: Mitigating Privacy Leaks by Controlling the Discoverability of Online Information
Milivoj Simeonovski, Fabian Bendun, Muhammad Rizwan Asghar +3
Search engines are the prevalently used tools to collect information about individuals on the Internet. Search results typically comprise a variety of sources that contain personal…
Privacy Preserving Enforcement of Sensitive Policies in Outsourced and Distributed Environments
Muhammad Rizwan Asghar
The enforcement of sensitive policies in untrusted environments is still an open challenge for policy-based systems. On the one hand, taking any appropriate security decision requi…
ESPOON: Enforcing Security Policies In Outsourced Environments
Muhammad Rizwan Asghar, Mihaela Ion, Giovanni Russello +1
Data outsourcing is a growing business model offering services to individuals and enterprises for processing and storing a huge amount of data. It is not only economical but also p…