I want to share this article where they talk that the NSA wants to develop a cryptocurrency with quantum resistance:
--snip--
NSA and cryptocurrency is weird pair and i have some skepticism.
But effort to make quantum-resistant
cryptocurrency cryptography already happened for years and even few cryptocurrency claim cryptography they use is quantum-resistant.
For reference, there are some promising candidate for quantum resistant cryptography signature, such as :
1. Lamport Signature
2. Lattice-based Cryptography
3. Multivariate-based cryptography