func checkInputPubKey(acc *acm.Account, in *types.TxInput) error {
if acc.PubKey == nil {
if in.PubKey == nil {
return types.ErrTxUnknownPubKey
}
if !bytes.Equal(in.PubKey.Address(), acc.Address) {
return types.ErrTxInvalidPubKey
}
acc.PubKey = in.PubKey
} else {
in.PubKey = nil
}
return nil
}
