sunshine vendetta
@sunshinevendetta
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solana winternitz vault is interesting, but fragile. it relies on never reusing keys, but solana’s fast high-volume system doesn’t guarantee perfect state updates. even a minor rollback or desync can lead to key reuse, letting attackers reverse engineer private keys.
the hash chain assumes perfect sync, but solana doesn’t enforce it. rollbacks or glitches can expose parts of the chain, creating weak links. attacks don’t need to break the whole system, just exploit predictable points. even strong hash functions can be targeted if biases or patterns exist, especially with quantum-classical attacks.
winternitz is also compute-heavy, and solana’s transaction budgets can’t handle the stress, we could spam tx to overload resources and stall the vault.
this vault might protect one transaction, but the rest of the chain like ed25519, aes, and validator signatures is wide open. so what’s the point of quantum resistant signatures when the system around them is wide open?
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