IC3: Advancing the science and applications of blockchains

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by Fan Zhang, Phil Daian, Iddo Bentov, and Ari Juels on January 18, 2018 at 09:30 AM
Suppose that N players share cryptocurrency using an M-of-N multisig scheme. If N-M+1 players disappear, the remaining ones have a problem: They've permanently lost their funds. In this blog, we propose a solution to this critical problem using the power of the trusted hardware.
by Karen Levy on January 17, 2018 at 01:00 PM
Guest blogger Prof. Karen Levy describes how contracts often include terms that are unenforceable, purposefully vague, or never meant to be enforced, how this helps set expectations, and what this means for smart contracts.
by Adem Efe Gencer, Soumya Basu, Ittay Eyal, Robbert van Renesse, and Emin Gün Sirer on January 15, 2018 at 07:37 AM
We have been examining the state of the Bitcoin and Ethereum networks over time. In a recent study, we examine the level of decentralization in these two networks, with some interesting takeaways for the future.
by Emin Gün Sirer on December 25, 2017 at 08:05 AM
Devising a lottery based off of a blockchain is a lot harder than it seems. Also, this is a parable for the Bitcoin blockchain debate.
by Phil Daian and Lorenz Breidenbach on December 13, 2017 at 08:00 AM
This post argues that the recently proposed EIPs to rescue the frozen ethers are dangerous.
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Thursday May 10, 2018
IC3 faculty, students and industry members gather twice per year to discuss the major technical challenges and innovative solutions to widespread blockchain adoption.
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Featured Projects

Town Crier: Authenticated Data Feeds for Smart Contracts

Smart contracts systems today lack trustworthy sources of data, as currently deployed oracles provide only weak provenance and confidentiality guarantees. The Town Crier system leverages trusted hardware (Intel SGX) to provide a strong guarantee that data comes from an existing, trustworthy source. It also provides confidentiality, enabling smart contracts to support confidential queries and manage user credentials. A basic version of Town Crier has been launched as a public Ethereum service. For further details, please check out http://town-crier.org.

Keywords:
Smart Contracts
Trusted Hardware
Intel SGX
Authenticated Data Feeds

More projects:

  • Solidus: Confidential Financial Transaction Settlement on a Distributed Ledgers
  • Bitcoin-NG: A Next-generation Blockchain Protocol
  • Miniature World: A Test Bed for Simulating Real World Blockchain
  • Fruitchain: A new Approach for Incentive Compatible Blockchains
  • Falcon Network: A High-Performance, Wide Area Interconnect for Blockchains
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