According to the provisions of the Electronic Signature Law, an electronic signature is regarded as reliable if it meets the following conditions. In this way, the electronic contract has the same effect as the paper contract, and the signing is compliant and effective:

(1) When electronic signature production data is used for electronic signature, it belongs to the electronic signer.

(two) the electronic signature data is only controlled by the electronic signer at the time of signature.

(3) Any changes to the electronic signature after signing can be found.

(4) Any changes to the content and form of the data message after signature can be found. A reliable electronic signature has the same legal effect as a handwritten signature or seal.

In practice, we meet these conditions through the following technical means:

Face biometrics, bank card elements and other multiple technical means of real-name authentication to ensure that the electronic signature issued belongs to a special person;

Encrypt login, reserve the random dynamic password of mobile phone, and ensure that the signature behavior is controlled by the signer;

A CA certificate is issued by a national authority, and the uniqueness of the fingerprint of the certificate is guaranteed, so that tampering is invalid and the authenticity and validity of the signature can be recognized;

The contract documents are converted into tamper-proof PDF, stamped with the time stamp of the National Time Service Center, and kept by the authoritative judicial expertise center and France, which can verify the authenticity of the contract.