---
_id: '8298'
abstract:
- lang: eng
  text: Sharding, or partitioning the system’s state so that different subsets of
    participants handle it, is a proven approach to building distributed systems whose
    total capacity scales horizontally with the number of participants. Many distributed
    ledgers have adopted this approach to increase their performance, however, they
    focus on the permissionless setting that assumes the existence of a strong adversary.
    In this paper, we deploy channels for permissioned blockchains. Our first contribution
    is to adapt sharding on asset-management applications for the permissioned setting,
    while preserving liveness and safety even on transactions spanning across-channels.
    Our second contribution is to leverage channels as a confidentiality boundary,
    enabling different organizations and consortia to preserve their privacy within
    their channels and still be part of a bigger collaborative ecosystem. To make
    our system concrete we map it on top of Hyperledger Fabric.
alternative_title:
- LNCS
article_processing_charge: No
author:
- first_name: Elli
  full_name: Androulaki, Elli
  last_name: Androulaki
- first_name: Christian
  full_name: Cachin, Christian
  last_name: Cachin
- first_name: Angelo
  full_name: De Caro, Angelo
  last_name: De Caro
- first_name: Eleftherios
  full_name: Kokoris Kogias, Eleftherios
  id: f5983044-d7ef-11ea-ac6d-fd1430a26d30
  last_name: Kokoris Kogias
citation:
  ama: 'Androulaki E, Cachin C, De Caro A, Kokoris Kogias E. Channels: Horizontal
    scaling and confidentiality on permissioned blockchains. In: <i>Computer Security</i>.
    Vol 11098. Springer Nature; 2018:111-131. doi:<a href="https://doi.org/10.1007/978-3-319-99073-6_6">10.1007/978-3-319-99073-6_6</a>'
  apa: 'Androulaki, E., Cachin, C., De Caro, A., &#38; Kokoris Kogias, E. (2018).
    Channels: Horizontal scaling and confidentiality on permissioned blockchains.
    In <i>Computer Security</i> (Vol. 11098, pp. 111–131). Barcelona, Spain: Springer
    Nature. <a href="https://doi.org/10.1007/978-3-319-99073-6_6">https://doi.org/10.1007/978-3-319-99073-6_6</a>'
  chicago: 'Androulaki, Elli, Christian Cachin, Angelo De Caro, and Eleftherios Kokoris
    Kogias. “Channels: Horizontal Scaling and Confidentiality on Permissioned Blockchains.”
    In <i>Computer Security</i>, 11098:111–31. Springer Nature, 2018. <a href="https://doi.org/10.1007/978-3-319-99073-6_6">https://doi.org/10.1007/978-3-319-99073-6_6</a>.'
  ieee: 'E. Androulaki, C. Cachin, A. De Caro, and E. Kokoris Kogias, “Channels: Horizontal
    scaling and confidentiality on permissioned blockchains,” in <i>Computer Security</i>,
    Barcelona, Spain, 2018, vol. 11098, pp. 111–131.'
  ista: 'Androulaki E, Cachin C, De Caro A, Kokoris Kogias E. 2018. Channels: Horizontal
    scaling and confidentiality on permissioned blockchains. Computer Security. ESORICS:
    European Symposium on Research in Computer Security, LNCS, vol. 11098, 111–131.'
  mla: 'Androulaki, Elli, et al. “Channels: Horizontal Scaling and Confidentiality
    on Permissioned Blockchains.” <i>Computer Security</i>, vol. 11098, Springer Nature,
    2018, pp. 111–31, doi:<a href="https://doi.org/10.1007/978-3-319-99073-6_6">10.1007/978-3-319-99073-6_6</a>.'
  short: E. Androulaki, C. Cachin, A. De Caro, E. Kokoris Kogias, in:, Computer Security,
    Springer Nature, 2018, pp. 111–131.
conference:
  end_date: 2018-09-07
  location: Barcelona, Spain
  name: 'ESORICS: European Symposium on Research in Computer Security'
  start_date: 2018-09-03
date_created: 2020-08-26T11:47:34Z
date_published: 2018-08-08T00:00:00Z
date_updated: 2021-01-12T08:17:57Z
day: '08'
doi: 10.1007/978-3-319-99073-6_6
extern: '1'
intvolume: '     11098'
language:
- iso: eng
month: '08'
oa_version: None
page: 111-131
publication: Computer Security
publication_identifier:
  eisbn:
  - '9783319990736'
  isbn:
  - '9783319990729'
  issn:
  - 0302-9743
  - 1611-3349
publication_status: published
publisher: Springer Nature
quality_controlled: '1'
status: public
title: 'Channels: Horizontal scaling and confidentiality on permissioned blockchains'
type: conference
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 11098
year: '2018'
...