According to the provisions of China's "Electronic Signature Law", when the electronic signature production data is used for electronic signature, it needs to meet the requirements that the electronic signature production data belongs to the electronic signatory; When signing, the electronic signature production data is only controlled by the electronic signer; Any changes to the electronic signature after signing can be found; Any changes to the content and form of the data message after signing can be found. This can be considered effective. Therefore, Lian Bi is possible.