Message signing
TronSigner::sign_message signs plaintext using the same prefix and hashing
rules as TronWeb's signMessageV2.
use tronz::{TronSigner, recover_message_address, verify_message};
let message = b"hello from tronz";
let signature = signer.sign_message(message).await?;
assert!(verify_message(message, &signature, signer.address()));
assert_eq!(recover_message_address(message, &signature)?, signer.address());tronz stores recovery id v as 0 or 1. Use
signature.to_legacy_bytes() when interoperating with TronWeb consumers that
expect 27 or 28.
See the runnable message-signing example.