Hydd Algorithmhydddocs

Threat model

Known attacks and defences.


Attacks and defences

AttackDefence
Replaying a signaturePer-owner nonce and deadline
Front-running a saleSale terms bound in the signature; only the router may submit
Share inflation on an empty vault1e6 virtual shares, rounding down
Sandwiching the harvesterSlippage bounded by the EMA, capped price steps, halving retries
Linking by amountFixed denominations for stealth payments
Linking by timingUser habit: wait before spending

Out of scope

Network-level surveillance, compromised devices, and malicious wallet software.