DEDIS

Decentralized Distributed Systems Laboratory

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Overview of Omniledger

The DEDIS team is working on projects related to large-scale collective authorities (cothorities), which distribute trust among a number of independent parties to allow scalable self-organizing communities.

With no single trusted party, cothorities can secure software updates, provide public randomness, enable privacy-conscious medical-data sharing and a lot more.

Other projects include communicating securely over insecure channels and fast, scalable, accountable anonymous communication.

Here is a selected list of our recent papers (see here for a full list of publications):

• OmniLedger: A Secure, Scale-Out, Decentralized Ledger via Sharding, Eleftherios Kokoris-Kogias, Philipp Jovanovic, Linus Gasser, Nicolas Gailly, Ewa Syta, Bryan Ford, IEEE Symposium on Security and Privacy ’18
• CHAINIAC: Proactive Software-Update Transparency via Collectively Signed Skipchains and Verified Builds, Kirill Nikitin, Eleftherios Kokoris-Kogias, Philipp Jovanovic, Linus Gasser, Nicolas Gailly, Ismail Khoffi, Justin Cappos, and Bryan Ford, Usenix Security ’17.
• Enhancing Bitcoin Security and Performance with Strong Consistency via Collective Signing, Eleftherios Kokoris Kogias, Philipp Jovanovic, Nicolas Gailly, Ismail Khoffi,
  Linus Gasser, and Bryan Ford, Usenix Security ’16
• Scalable Bias-Resistant Distributed Randomness, Ewa Syta and Philipp Jovanovic and Eleftherios Kokoris Kogias and Nicolas Gailly and Linus Gasser and Ismail Khoffi and Michael J. Fischer and Bryan Ford, IEEE Symposium on Security and Privacy ’17
• CALYPSO: Auditable Sharing of Private Data over Blockchains, Eleftherios Kokoris-Kogias and Enis Ceyhun Alp and Sandra Deepthy Siby and Nicolas Gailly and Linus Gasser and Philipp Jovanovic and Ewa Syta and Bryan Ford, Pre-Print only.

Learning more about our work…

We have an extensive list of research project software available on github: https://github.com/dedis/doc

We update our blog from time to time.

We sometimes recruit software engineers for our lab via our page at StackOverflow.