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Starknet Announces STRK20 to Add Built-In Privacy to ERC‑20 Tokens

The design combines zero‑knowledge–verified private transfers with decryptable viewing keys to balance confidentiality with oversight.

Overview

  • STRK20 enables any ERC‑20 on Starknet to hold confidential balances and execute private transfers with the option for regulated disclosure when legally required.
  • Transactions run through a Starknet Privacy Pool where client‑side zero‑knowledge proofs hide sender, receiver, and amounts as the sequencer verifies validity.
  • The framework keeps public and private states linked to the same asset and liquidity, preserving DeFi composability for swaps, staking, and stablecoin activity.
  • Early integrations are planned, including privacy‑enabled swaps on Ekubo, with anonymous staking explored for BTC and the Starknet token.
  • StarkWare targets sub‑five‑second settlement and fees under $0.20 per transaction, with broader rollout and developer integrations expected later this year.