Use multiple signing keys
EthSigner supports transaction signing using multiple stored keys. Any account submitting transactions to EthSigner can use the stored keys. The keys can be stored in:
- A V3 keystore file stored on a file system accessible by the host.
- A Hashicorp Vault.
- An Azure Key Vault.
The ability to use mulitiple signing keys should be limited to the accounts with access to the stored keys.
Files can be added or removed from the directory without needing to restart EthSigner.
The TOML file name must use the format
[<prefix>]<accountAddress>.toml. The prefix can be
anything you want. No two TOML files can have the same key address in the file name, even if the
0x portion of the account address. For example,
Hyperledger Besu subcommand to obtain the account address of the node.