Exact byzantine consensus in directed graphs

L Tseng, N Vaidya - arXiv preprint arXiv:1208.5075, 2012 - arxiv.org
Consider a synchronous point-to-point network of n nodes connected by directed links,
wherein each node has a binary input. This paper proves a tight necessary and sufficient …

Iterative approximate Byzantine consensus in arbitrary directed graphs

NH Vaidya, L Tseng, G Liang - … of the 2012 ACM symposium on …, 2012 - dl.acm.org
This paper proves a necessary and sufficient condition for the existence of iterative,
algorithms that achieve approximate Byzantine consensus in arbitrary directed graphs …

Iterative approximate Byzantine consensus in arbitrary directed graphs

L Tseng, G Liang, NH Vaidya - Distributed Computing, 2024 - Springer
This paper identifies necessary and sufficient conditions for the existence of iterative
algorithms that achieve approximate Byzantine consensus in arbitrary directed graphs …

A note on fault-tolerant consensus in directed networks

L Tseng, NH Vaidya - ACM SIGACT News, 2016 - dl.acm.org
Fault-tolerant consensus has received significant attention over the past three decades
since the seminal work by Lamport, Shostak, and Pease [33, 26]. The consensus problem …

Exact byzantine consensus on undirected graphs under local broadcast model

MS Khan, SS Naqvi, NH Vaidya - … of the 2019 ACM Symposium on …, 2019 - dl.acm.org
This paper considers the Byzantine consensus problem for nodes with binary inputs. The
nodes are interconnected by a network represented as an undirected graph, and the system …

Fault-tolerant consensus in directed graphs

L Tseng, NH Vaidya - Proceedings of the 2015 ACM Symposium on …, 2015 - dl.acm.org
Consider a point-to-point network in which nodes are connected by directed links. This
paper proves tight necessary and sufficient conditions on the underlying communication …

Asynchronous Byzantine Consensus on Undirected Graphs under Local Broadcast Model

MS Khan, N Vaidya - arXiv preprint arXiv:1909.02865, 2019 - arxiv.org
In this work we look at Byzantine consensus in asynchronous systems under the local
broadcast model. In the local broadcast model, a message sent by any node is received …

Iterative approximate consensus in the presence of Byzantine link failures

L Tseng, N Vaidya - … Conference, NETYS 2014, Marrakech, Morocco, May …, 2014 - Springer
This paper explores the problem of reaching approximate consensus in synchronous point-
to-point networks, where each directed link of the underlying communication graph …

Exact Byzantine consensus on arbitrary directed graphs under local broadcast model

MS Khan, L Tseng, NH Vaidya - arXiv preprint arXiv:1911.07298, 2019 - arxiv.org
We consider Byzantine consensus in a synchronous system where nodes are connected by
a network modeled as a directed graph, ie, communication links between neighboring …

Asynchronous Byzantine approximate consensus in directed networks

D Sakavalas, L Tseng, NH Vaidya - … of the 39th Symposium on Principles …, 2020 - dl.acm.org
This paper considers the problem of approximate consensus in directed asynchronous
message-passing networks where some nodes may become Byzantine faulty. We obtain a …