This is a serious flaw with smart contracts that use onlyOwner permissions, because a person can just needs to know the public owner address and then can invoke the RPC eth_call passing setting the sender with the owner address and now can hijack the smart contract?
The wallet and private key shown in the above screenshot are the COMMUNITY WALLET address and private key generated for the community from https://github.com/pingleware/pingleware-contracts/tree/main/apps/wallet-creator
Creating a community wallet permits demonstrations without risk. You can use the Community Wallet to try the pre-release version of the Ethereum Contract Creator at https://snapcraft.io/ethereum-contract-creator
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Snaps are applications packaged with all their dependencies to run on all popular Linux distributions from a single build. They update automatically and roll back gracefully.
Snaps are discoverable and installable from the Snap Store, an app store with an audience of millions.
Snap is available for CentOS 7.6+, and Red Hat Enterprise Linux 7.6+, from the Extra Packages for Enterprise Linux (EPEL) repository. The EPEL repository can be added to your system with the following command:
sudo yum install epel-release
Snap can now be installed as follows:
sudo yum install snapd
Once installed, the systemd unit that manages the main snap communication socket needs to be enabled:
sudo systemctl enable --now snapd.socket
To enable classic snap support, enter the following to create a symbolic link between /var/lib/snapd/snap and /snap:
sudo ln -s /var/lib/snapd/snap /snap
Either log out and back in again, or restart your system, to ensure snap’s paths are updated correctly.
To install Web3 Signing Utility, simply use the following command:
sudo snap install web3-signer
Browse and find snaps from the convenience of your desktop using the snap store snap.
Interested to find out more about snaps? Want to publish your own application? Visit snapcraft.io now.