Black-box accumulation (BBA) is a building block which enables a privacy-preserving
implementation of point collection and redemption, a functionality required in a variety of user-…

We address the Threshold Information Disclosure (TID) problem on Ethereum: An arbitrary
number of users commit to the scheduled disclosure of their individual messages recorded on …

User privacy is becoming increasingly important in our digital society. Yet, many applications
face legal requirements or regulations that prohibit unconditional anonymity guarantees, eg…

In this paper we propose Privacy-preserving User-data Bookkeeping & Analytics (PUBA), a
building block destined to enable the implementation of business models (eg, targeted …

We circumvent these impossibility results with new techniques, enabling rewinding-based
simulation in a way that universal composability is achieved. This allows us to construct a long-…

Black-box accumulation (BBA) is a cryptographic protocol that allows users to accumulate
and redeem points, eg in payment systems, and offers provable security and privacy …

Black-box accumulation (BBA) is a cryptographic protocol that allows users to accumulate
and redeem points, eg in payment systems, and offers provable security and privacy …

In this work we propose an approach to increase security of multi-party-computation (MPC)
protocols. We consider a setting in which each party consists of several devices with different …

Heterologous screening of a cDNA library from Pinus strobus seedlings identified clones for
two chalcone synthase (CHS) related proteins (PStrCHS1 and PStrCHS2, 87.6% identity). …

… I am also grateful to Markus Raiber for helping out when Felix and I needed some more
insights. Additionally, thanks should also go to Stefan Kühnlein for helping me get a grasp on the …