Preimage Resistance
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Articles with this concept
- Layer 2
A hash-only rollup: OP Stack L2 accounts as Lamport-style hash chains, no ECDSA inside the L2
An OP Stack rollup on Ethereum mainnet enables L2 transactions without signatures using hash chains. This design is proposed as an interim solution for post-quantum payments on Ethereum L2s, relying on preimage resistance of keccak-256.