Seal, signature or electronic signature mainly depends on the contract. If the entry-into-force clause in the contract clearly states that handwritten signature is required to take effect, then electronic stamping is useless. Where there is an agreement or there is no agreement, Article 14 of the Electronic Signature Law stipulates that a reliable electronic signature has the same legal effect as a handwritten signature or seal.

An electronic signature shall be regarded as reliable if it meets the following conditions:

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

2. When signing, the electronic signature production data is only controlled by the electronic signer;

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

Any changes in the content and form of the data message after signing can be found.

In a word, the parties can also choose to use electronic signatures that meet their agreed reliable conditions. To engage in electronic authentication services, an application shall be submitted to the competent department of information industry in the State Council, and relevant materials that meet the conditions stipulated in Article 17 of this Law shall be submitted. After receiving the application, the competent department of information industry in the State Council shall examine it according to law, solicit the opinions of the competent department of commerce in the State Council and other relevant departments, and make a decision on approval or disapproval within 45 days from the date of receiving the application. If the license is granted, an electronic certification license certificate shall be issued; If the license is not granted, it shall notify the applicant in writing and inform the reasons. The electronic authentication service provider shall ensure that the contents of the electronic signature authentication certificate are complete and accurate within the validity period, and ensure that the relying party of the electronic signature can confirm or understand the contents contained in the electronic signature authentication certificate and other related matters.

Legal basis:

Article 14 of People's Republic of China (PRC) Electronic Signature Law

A reliable electronic signature has the same legal effect as a handwritten signature or seal.

Article 15

The electronic signer shall properly keep the electronic signature making data. When the electronic signer knows that the electronic signature production data has been or may have been compromised, he shall promptly inform the relevant parties and stop using the electronic signature production data.