Eligible for the Award is any collaboration between projects, for example joint publications, contributions to CogniCrypt, joint software tools or demonstrators or joint bachelor or master thesis.
Winners of the Collaboration Award get a trophy and certificate, and each collaborator receives funds for conference or workshop participation (travel, accommodation, conference fee), freely selectable by the price winners.

Abstract
Most blockchain solutions are susceptible to quantum adversaries as they rely on cryptography that is known to be insecure in the presence of quantum adversaries. In this work, we advance the study of quantum-resistant blockchain solutions by giving a quantum-resistant construction of a deterministic wallet scheme.
In cryptocurrencies, money is transfered via transactions. A transaction is valid only when signed with the sender's secret key. This makes secret keys of users an attractive target to attackers. Deterministic wallets are frequently used in practice in order to securely store user's keys. A deterministic wallet has two components – usually the sensitive secret key is stored in a so-called cold wallet which is most of the time online, whereas the public key is stored in an online wallet called the hot wallet. Recently, Das et al. developed a formal model for the security analysis of deterministic wallets and proposed a generic construction from certain types of classical signature schemes that exhibit key rerandomization properties. For security in a quantum world, it is therefore mandatory to show that the generic construction proposed in this paper is secure against quantum adversaries and to design post-quantum secure signature schemes with key rerandomization to instantiate this generic construction.
Link to the Paper
Deterministic Wallets in a Quantum World
Contact
Project P1, Project S7