Blockchain technologies summer shool
Panoramix members coorganize and participate the IACR Summer School on blockchain technologies. Aggelos Kiayias, George Danezis and Harry Halpin are present from the project team.
Monthly Archives: May 2016
New paper about Password-Protected Secret Sharing
Highly-Efficient and Composable Password-Protected Secret Sharing (Or: How to Protect Your Bitcoin Wallet Online) Stanislaw Jarecki, Aggelos Kiayias, Hugo Krawczyk, Jiayu Xu, Abstract: PPSS is a central primitive introduced by Bagherzandi et al [BJSL10] which allows a user to store a secret among n servers such that the user can later reconstruct the secret with the sole possession
New publication about lower cost PIR
Lower-Cost epsilon-Private Information Retrieval. Raphael R. Toledo, George Danezis, Ian Goldberg Abstract: Private Information Retrieval (PIR), despite being well studied, is computationally costly and arduous to scale. We explore lower-cost relaxations of information-theoretic PIR, based on dummy queries, sparse vectors, and compositions with an anonymity system. We prove the security of each scheme using a