Legal electronic contract is a form of contract recognized by the Civil Code. However, because electronic contract is based on data message, it involves a series of technical standards, among which the most core and important is electronic signature technology. The electronic signature mentioned here is a string of data or codes, and the real identity of the signer is determined by the technical means of digital certificate. According to national laws, only electronic contracts signed with reliable electronic signatures have legal effect.

Legal basis: Article 496 of the Civil Code of People's Republic of China (PRC), the parties may conclude a contract in written form, orally or in other forms.

Written form refers to contracts, letters, telegrams, telexes, faxes and other forms that can tangibly express the contents contained.

A data message that can tangibly express its content through electronic data interchange, e-mail, etc. , and can be retrieved at any time, are considered in writing.