AmericanFortress proposes quantum-safe crypto wallet scheme

AmericanFortress has proposed a post-quantum security scheme designed to protect existing Bitcoin, Ethereum, and Solana wallet addresses without requiring holders to move funds or rotate their keys. Summary ZK-PoSP keeps existing wallet addresses while replacing conventional transaction authorization with zero-knowledge proofs. AmericanFortress says the scheme requires no fund migration, key rotation, or new address format. The approach remains a proposal and would require node-level upgrades before any blockchain could enforce it. Its post-quantum security remains conjectural, according to the technical paper, rather than proven against a working attack. ZK-PoSP uses wallet seeds to authorize transactions AmericanFortress released the technical paper for Zero-Knowledge Proof of Seed Provenance, or ZK-PoSP, through the International Association for Cryptologic Research’s ePrint archive. The scheme allows a wallet to prove that it knows the seed used to derive an address without revealing that seed. It would operate alongside existing signature systems before replacing the classical signing step if quantum computers become capable of attacking elliptic curve cryptography. Bitcoin an...