Pyrros Chaidos

Paper 2023/1655 , National & Kapodistrian University of Athens, IOG , University of Edinburgh, IOG , Boston University , Boston University Suppose a prover, in possession of a large body of valuable evidence, wants to quickly convince a verifier by presenting only a small portion of the evidence.

Paper 2022/840 New Design Techniques for Efficient Arithmetization-Oriented Hash Functions:Anemoi Permutations and Jive Compression Mode , Sorbonne University, French Institute for Research in Computer Science and Automation , Sorbonne University, French Institute for Research in Computer Science and Automation , National and Kapodistrian University of Athens , French Institute for Research in Computer Science and Automation , Toposware , Clearmatics, University of Edinburgh , Nomadic Labs,...

Paper 2021/916 Mithril: Stake-based Threshold Multisignatures , National and Kapodistrian University of Athens , University of Edinburgh Abstract Stake-based multiparty cryptographic primitives operate in a setting where participants are associated with their stake, security is argued against an adversary that is bounded by the total stake it possesses —as opposed to number of parties— and we are interested in scalability, i.e., the complexity of critical operations depends only...