 |
Today at 07:55:51 PM |
|
Post Quantum signatures exist (dilithium, falcon, etc). One major/commonly cited reason I've observed for why we haven't integrated these sigs is due to key size (~20x key size of ECC).
However, why not just use a P2PQPKH (Pay to Post Quantum Pub Key Hash) type op code to facilitate this? -Hashing results in a fixed size output (same as existing P2PKH stored on chain), -PQ sig schemes resolve unresolved issues in BIP360 "short exposure attacks"
I understand there's still the unresolved issue of signing and key storage on existing cold storage hardware, but that seems like small potatoes in comparison to resolving the above larger issues.
|