Post-quantum digital signatures: two algorithms developed by DEIB among NIST competition finalists

Digital signatures play a crucial role in our everyday lives, safeguarding the authenticity of financial transactions, legal agreements, and digital media. However, the rise of quantum computing threatens the security of most currently deployed digital signature algorithms.
In response to this emerging risk, the U.S. National Institute of Standards and Technology (NIST) launched an international competition to establish standardized post-quantum digital signature algorithms. Following a year of global peer review, 14 finalists were chosen from an initial pool of 40 submissions.
Among these finalists are two notable schemes — CROSS (Codes and Restricted Objects Signature Scheme) and LESS (Linear Equivalence Signature Scheme) – both of which include Prof. Alessandro Barenghi and Prof. Gerardo Pelosi from the Department of Electronics, Information and Bioengineering at Politecnico di Milano as co-authors and lead contributors.