PQC: Lattice-based signatures

Isabel Foxen Duke recently shared her enthusiasm about Dan's increased public engagement on quantum issues, highlighted in a recent interview which can be viewed here. She expressed concerns regarding the practicality of threshold signatures and other features within lattice-based signature schemes, acknowledging that these might still be largely theoretical. She plans to discuss these aspects further with Dan to gather more insights and potential updates that might influence current thinking on this topic.

Moreover, Isabel is exploring the implications of adopting a hybrid signature scheme as suggested by Dan. She questions the practicality of implementing different cryptographic signatures at separate intervals, particularly the strategy of deploying something like SHRINCS prior to a lattice-based signature. This inquiry stems from considerations of moving directly to a unified hybrid scheme, which could potentially streamline processes and enhance security measures. Her query was contextualized further in her post, accessible here, where she seeks feedback on the feasibility of such strategic implementations in cryptographic practices.