On the suitability of parallel computer architectures for attacks on lattice-based cryptography

• Applicant: Dr.-Ing. Artur Mariano
• Subject Area: Computer Architecture, Embedded and Massively Parallel Systems ; Data Management, Data-Intensive Systems, Computer Science Methods in Business Informatics
• Term: from 2017 to 2020
• Project identifier: Deutsche Forschungsgemeinschaft (DFG) - Project number 382285730

With the development of quantum computers, the landscape of cryptography will have to be redefined, given that current cryptosystems will be vulnerable against quantum attacks. Currently, lattice-based cryptosystems are very promising candidates for postquantum computing. However, we are still maturing our understanding of their security. In particular, we need to assess the potential of attacks against these cryptosystems, so we are able to determine their actual safeness. This also helps us to determine the security parameters for the cryptosystems, as they are set based on the practical performance of attacks, on powerful, parallel computer architectures. In this project, we propose to 1) deepen our knowledge of attacks against latticebased cryptosystems, to which end we will use different computer architectures and 2) develop tools for the development of practical, parallel lattice-based cryptanalysis.

• DFG Programme: Research Fellowships
• International Connection: Portugal
• Host: Professor Luis dos Santos, Ph.D.