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Update EIP-7702: add s value check #8950

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eth-bot merged 1 commit into from
Oct 10, 2024
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Update EIP-7702: add s value check #8950

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1 change: 1 addition & 0 deletions EIPS/eip-7702.md
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Expand Up @@ -69,6 +69,7 @@ At the start of executing the transaction, after incrementing the sender's nonce
1. Verify the chain id is either 0 or the chain's current ID.
2. Verify the `nonce` is less than `2**64 - 1`.
3. `authority = ecrecover(keccak(MAGIC || rlp([chain_id, address, nonce])), y_parity, r, s]`
* `s` value must be less or equal than `secp256k1n/2`, as specified in [EIP-2](./eip-2.md).
4. Add `authority` to `accessed_addresses` (as defined in [EIP-2929](./eip-2929.md).)
5. Verify the code of `authority` is either empty or already delegated.
6. Verify the nonce of `authority` is equal to `nonce`. In case `authority` does not exist in the trie, verify that `nonce` is equal to `0`.
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