ConChain: A Scheme for Contention-Free and Attack Resilient BlockChain

Although blockchains have become widely popular for their use in cryptocurrencies, they are now becoming pervasive as more traditional applications adopt blockchain to ensure data security. Despite being a secured network, blockchains have some tradeoffs such as high latency, low throughput, and tra...

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Bibliographic Details
Main Authors: Bappy, Faisal Haque, Islam, Tariqul, Zaman, Tarannum Shaila, Sajid, Md Sajidul Islam, Pritom, Mir Mehedi Ahsan
Format: Conference Proceeding
Language:English
Subjects:
attack resilience
blockchain
Blockchains
conflicting transactions
contention
Cryptocurrency
Data security
Parallel processing
Throughput
transaction ordering
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Summary:Although blockchains have become widely popular for their use in cryptocurrencies, they are now becoming pervasive as more traditional applications adopt blockchain to ensure data security. Despite being a secured network, blockchains have some tradeoffs such as high latency, low throughput, and transaction failures. One of the core problems behind these is improper management of "conflicting transactions", which is also known as "contention". When there is a large pool of pending transactions in a blockchain and some of them are conflicting, a situation of contention occurs, and as a result, the latency of the network increases, and a substantial amount of resources are wasted which results in low throughput and transaction failures. In this paper, we proposed ConChain, a novel blockchain scheme that combines transaction parallelism and an intelligent dependency manager to minimize conflicting transactions in blockchain networks as well as improve performance. ConChain is also capable of ensuring proper defense against major attacks due to contention.
ISSN:2331-9860
DOI:10.1109/CCNC51664.2024.10454692