The combination of next generation blockchain and cryptographic technologies developed at EPFL DEDIS provides for the scalability, privacy and high-availability required for Proof-of-Personhood technology foundations and applications. Key results from DEDIS research aiming at developing tomorrow's blockchain systems that are fast, scalable, reliable and private include Enhancing Bitcoin Security and Performance with Strong Consistency via Collective Signing (2016), Proof-of-Personhood: Redemocratizing Permissionless Cryptocurrencies (2017) and OmniLedger: A Secure, Scale-Out, Decentralized Ledger via Sharding (2018). On the software engineering side, we have published all of our front- and backend tools as open source via the DEDIS organization on GitHub.
We are exploring a self-sovereign identity management system which enables users to authenticate to services via cryptographic keys instead of passwords, to prove statements about their identity attributes in zero knowledge, and to share data on-chain securely. As described in CALYPSO: Auditable Sharing of Private Data over Blockchains (2018), we envision to integrate capabilities allowing users to share data while owning them, and controlling access to those data.
Personhood Parties are real-world choreographed gatherings that people can attend in person to prove they are real human beings. The objective Personhood Parties is to verify real people, thereby linking physical and virtual identities and providing a basis to prevent adversaries from mounting Sybil attacks. They can be organised by federations of trusted organisers, and will eventually be coordinated and synchronised. Participants agree on a set of predefined rules while attending. All parties are recorded for transparency, but attendees are free to hide their identities by dressing as they wish, including hiding their faces for anonymity. By the end of the Personhood Party, each attendee will obtain exactly one cryptographic token, a Personhood Badge, that validates the personhood attribute to their digital identity, without revealing sensitive information.
On December 5th, Lefteris presented "CALYPSO: Sharing of Private Data over Blockchains" at Bitcoin Wednesday in Amsterdam. He discussed the two main CALYPSO concepts: on-chain secrets and skipchain-based identity and access management.Read More
Lefteris, Philipp and Linus presented their work related to PERSONHOOD.ONLINE at the recent Master Blockchain Workshop in Amsterdam on November 17-18 2018, where a a thorough look at layer I scaling solutions for blockchains was provided by multiple experts.Read More
After years of research on scalable blockchain systems and Proof-of-Personhood mechanisms we are proud to launch the PERSONHOOD.ONLINE website to highlight developments by EPFL DEDIS around the theme of a more human-centric digital society.Read More