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A Secure Sharding Protocol For Open Blockchains

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Abstract

Cryptocurrencies, such as Bitcoin and 250 similar alt-coins, embody at their core a blockchain protocol --- a mechanism for a distributed network of computational nodes to periodically agree on a set of new transactions. Designing a secure blockchain protocol relies on an open challenge in security, that of designing a highlyscalable agreement protocol open to manipulation by byzantine or arbitrarily malicious nodes. Bitcoin’s blockchain agreement protocol exhibits security, but does not scale: it processes 3—7 transactions per second at present, irrespective of the available computation capacity at hand.

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BibTex

@inproceedings{luuSecureShardingProtocol2016,
  author = {Luu, Loi and Narayanan, Viswesh and Zheng, Chaodong and Baweja, Kunal and Gilbert, Seth and Saxena, Prateek},
  title = {A Secure Sharding Protocol For Open Blockchains},
  year = {2016},
  month = {oct},
  pages = {17--30},
  doi = {10.1145/2976749.2978389},
  publisher = {ACM},
  booktitle = {Proceedings of the 2016 ACM SIGSAC Conference on Computer and Communications Security},
  address = {Vienna Austria},
  urldate = {2025-10-24},
  abstract = {Cryptocurrencies, such as Bitcoin and 250 similar alt-coins, embody at their core a blockchain protocol --- a mechanism for a distributed network of computational nodes to periodically agree on a set of new transactions. Designing a secure blockchain protocol relies on an open challenge in security, that of designing a highlyscalable agreement protocol open to manipulation by byzantine or arbitrarily malicious nodes. Bitcoin's blockchain agreement protocol exhibits security, but does not scale: it processes 3--7 transactions per second at present, irrespective of the available computation capacity at hand.},
  isbn = {978-1-4503-4139-4},
  langid = {english}
}

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