Evermint is a fork of open source Evmos, maintains bug fixes, customization and enable developers to fork and transform to their chain, fully customized naming, in just 2 steps. For research and development purpose.
GNU Lesser General Public License v3.0
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Problem: Incompatible address derivation leading to unrecoverable funds sent via IBC #79
Every Ethermint-based/Evmos-based chains are using eth_secp256k1 and Coin Type=60 so the delivered address will be different with the other non-EVM compatible chains. Two cases can happens:
Users sending funds from an EVM-compatible chains, so address will be compatible and users can access to their funds.
Users sending funds from non-EVM-compatible chains, with different eth_secp256k1|| Coin Type, the address is in-compatible so they can not access to their funds.
But, this won't usually happens, can say rare due just from mistake of front-end developers or sometime user when manually convert address.
Solution:
Can choose one of the following options:
Re-use x/recovery module from Evmos.
Implement a light-weighted module that invokes "refund-to-sender" in certain conditions.
Just ignore it.
In case of decided to implement a recover funds method, the following condition should be match.
Account must not sent any transaction before (nonce = 0).
Only base accounts are considered as source of funds that recoverable (non-contract, non-module, non-vesting,...)
Check ERC-20 token pairs to detect balance of already converted by IBC middleware.
Not a bug
Problem:
Every Ethermint-based/Evmos-based chains are using
eth_secp256k1
andCoin Type=60
so the delivered address will be different with the other non-EVM compatible chains. Two cases can happens:eth_secp256k1
||Coin Type
, the address is in-compatible so they can not access to their funds.But, this won't usually happens, can say rare due just from mistake of front-end developers or sometime user when manually convert address.
Solution:
Can choose one of the following options:
x/recovery
module from Evmos.In case of decided to implement a recover funds method, the following condition should be match.