References of "Nita-Rotaru, Cristina"
     in
Bookmark and Share    
Full Text
Peer Reviewed
See detailSPON: Enabling Resilient Inter-Ledgers Payments with an Intrusion-Tolerant Overlay
Trestioreanu, Lucian Andrei UL; Nita-Rotaru, Cristina; Malhotra, Aanchal et al

Scientific Conference (2021, October 04)

Payment systems are a critical component of everyday life in our society. While in many situations payments are still slow, opaque, siloed, expensive or even fail, users expect them to be fast ... [more ▼]

Payment systems are a critical component of everyday life in our society. While in many situations payments are still slow, opaque, siloed, expensive or even fail, users expect them to be fast, transparent, cheap, reliable and global. Recent technologies such as distributed ledgers create opportunities for near-real-time, cheaper and more transparent payments. However, in order to achieve a global payment system, payments should be possible not only within one ledger, but also across different ledgers and geographies.In this paper we propose Secure Payments with Overlay Networks (SPON), a service that enables global payments across multiple ledgers by combining the transaction exchange provided by the Interledger protocol with an intrusion-tolerant overlay of relay nodes to achieve (1) improved payment latency, (2) fault-tolerance to benign failures such as node failures and network partitions, and (3) resilience to BGP hijacking attacks. We discuss the design goals and present an implementation based on the Interledger protocol and Spines overlay network. We analyze the resilience of SPON and demonstrate through experimental evaluation that it is able to improve payment latency, recover from path outages, withstand network partition attacks, and disseminate payments fairly across multiple ledgers. We also show how SPON can be deployed to make the communication between different ledgers resilient to BGP hijacking attacks. [less ▲]

Detailed reference viewed: 53 (4 UL)
Full Text
Peer Reviewed
See detailROS-Defender: SDN-based Security Policy Enforcement for Robotic Applications
Rivera, Sean UL; Lagraa, Sofiane UL; State, Radu UL et al

in IEEE Workshop on the Internet of Safe Things, Co-located with IEEE Security and Privacy 2019 (2019, May)

Abstract—In this paper we propose ROS-Defender, a holistic approach to secure robotics systems, which integrates a Security Event Management System (SIEM), an intrusion prevention system (IPS) and a ... [more ▼]

Abstract—In this paper we propose ROS-Defender, a holistic approach to secure robotics systems, which integrates a Security Event Management System (SIEM), an intrusion prevention system (IPS) and a firewall for a robotic system. ROS-Defender combines anomaly detection systems at application (ROS) level and network level, with dynamic policy enforcement points using software defined networking (SDN) to provide protection against a large class of attacks. Although SIEMs, IPS, and firewall have been previously used to secure computer networks, ROSDefender is applying them for the specific use case of robotic systems, where security is in many cases an afterthought. [less ▲]

Detailed reference viewed: 117 (7 UL)