37 citations · 82 across the 11 of their papers we have counts for
11 papers
ScaloWork: Useful Proof-of-Work with Distributed Pool Mining
Diptendu Chatterjee, Avishek Majumder, Subhra Mazumdar
Bitcoin blockchain uses hash-based Proof-of-Work (PoW) that prevents unwanted participants from hogging the network resources. Anyone entering the mining game has to prove that the…
Chrisimos: A useful Proof-of-Work for finding Minimal Dominating Set of a graph
Diptendu Chatterjee, Prabal Banerjee, Subhra Mazumdar
Hash-based Proof-of-Work (PoW) used in the Bitcoin Blockchain leads to high energy consumption and resource wastage. In this paper, we aim to re-purpose the energy by replacing the…
Towards faster settlement in HTLC-based Cross-Chain Atomic Swaps
Subhra Mazumdar
Hashed Timelock (HTLC)-based atomic swap protocols enable the exchange of coins between two or more parties without relying on a trusted entity. This protocol is like the American…
Strategic Analysis of Griefing Attack in Lightning Network
Subhra Mazumdar, Prabal Banerjee, Abhinandan Sinha +2
Hashed Timelock Contract (HTLC) in Lightning Network is susceptible to a griefing attack. An attacker can block several channels and stall payments by mounting this attack. A state…
Griefing-Penalty: Countermeasure for Griefing Attack in Lightning Network
Subhra Mazumdar, Prabal Banerjee, Sushmita Ruj
Lightning Network can execute unlimited number of off-chain payments, without incurring the cost of recording each of them in the blockchain. However, conditional payments in such…
CryptoMaze: Privacy-Preserving Splitting of Off-Chain Payments
Subhra Mazumdar, Sushmita Ruj
Payment protocols developed to realize off-chain transactions in Payment channel network (PCN) assumes the underlying routing algorithm transfers the payment via a single path. How…
BB_Evac: Fast Location-Sensitive Behavior-Based Building Evacuation
Subhra Mazumdar, Arindam Pal, Francesco Parisi +1
Past work on evacuation planning assumes that evacuees will follow instructions -- however, there is ample evidence that this is not the case. While some people will follow instruc…
HushRelay: A Privacy-Preserving, Efficient, and Scalable Routing Algorithm for Off-Chain Payments
Subhra Mazumdar, Sushmita Ruj, Ram Govind Singh +1
Payment channel networks (PCN) are used in cryptocurrencies to enhance the performance and scalability of off-chain transactions. Except for opening and closing of a payment channe…
Cumulus: Blockchain-Enabled Privacy Preserving Data Audit in Cloud
Prabal Banerjee, Nishant Nikam, Subhra Mazumdar +1
Data owners upload large files to cloud storage servers, but malicious servers may potentially tamper data. To check integrity of remote data, Proof of Retrievability (PoR) schemes…
Design of Anonymous Endorsement System in Hyperledger Fabric
Subhra Mazumdar, Sushmita Ruj
Permissioned Blockchain has become quite popular with enterprises forming consortium since it prioritizes trust over privacy. One of the popular platforms for distributed ledger so…
Improved Algorithms for the Evacuation Route Planning Problem
Gopinath Mishra, Subhra Mazumdar, Arindam Pal
Emergency evacuation is the process of movement of people away from the threat or actual occurrence of hazards such as natural disasters, terrorist attacks, fires and bombs. In thi…