Raccoon-G - First Post-Quantum Wallet with Full BIP32 HD Derivation

Researchers published the first post-quantum construction to recover full BIP32 hierarchical deterministic (HD) wallet functionality. Standard NIST PQC schemes (ML-DSA) destroy the linearity needed for non-hardened BIP32 derivation. Raccoon-G uses Gaussian-distributed secrets and full unrounded public keys to preserve it, with security proved under standard lattice assumptions. Trade-off: larger keys (~16 KB public key vs. 33 bytes for secp256k1).