PQC: Lattice-based signatures

The recent discussion in the Bitcoin Development Mailing List highlighted significant insights shared by Dan Boneh in his latest interview, which can be viewed here at timestamp 1:11:00. In the interview, Boneh advocates for the adoption of lattice-based signatures over hash-based signatures within cryptographic practices. His recommendation stems from the algebraic structure of lattice-based signatures, which he believes offers enhanced functionality. A specific concern raised by Boneh is the complexity associated with implementing threshold signature schemes using hash-based signatures, suggesting that lattice-based approaches could simplify these processes and enhance their feasibility.

This shift towards lattice-based signatures could have substantial implications for future cryptographic security measures and their implementation in technologies such as blockchain. The conversation underscores the ongoing evolution in cryptographic techniques and the need for continuous adaptation to harness more robust and functional security solutions.