[rooch-networkgh-2381] add msg prefix to the account sign command.

crates/rooch/src/commands/account/commands/sign.rs

@@ -12,6 +12,10 @@ use rooch_types::{
  error::{RoochError, RoochResult},
 };
 
+struct AuthPayload {
+ message_prefix: Vec<u8>,
+}
+
 /// Sign an msg with current account private key (sign_hashed)
 ///
 /// This operation must be specified with -a or
@@ -43,10 +47,18 @@ impl CommandAction<Option<AccountSignView>> for SignCommand {
  RoochError::CommandArgumentError(format!("Invalid Rooch address String: {}", e))
  })?;
 
+ let auth_payload = AuthPayload {
+ message_prefix: "Bitcoin Signed Message:\n".into()
+ };
+
+ let mut msg_body = Vec::<u8>::new();
+ msg_body.copy_from_slice(&auth_payload.message_prefix);
+ msg_body.copy_from_slice(&self.msg.clone().into_bytes());
+
  let signature =
  context
  .keystore
- .sign_hashed(&addrss, &self.msg.clone().into_bytes(), password)?;
+ .sign_hashed(&addrss, &msg_body, password)?;
 
  if self.json {
  Ok(Some(AccountSignView::new(