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.
Therefore, in addition to meeting the requirements of reliable electronic signature, it is also necessary to meet the requirements of the law on the original form and preservation conditions of electronic contracts. Therefore, the electronic signature that meets the above conditions is valid.
Legal basis:
Article 3 of People's Republic of China (PRC) Electronic Signature Law
In civil activities, the parties may agree to use or not use electronic signatures and data messages in contracts or other documents, vouchers and other documents.
A document in the form of electronic signature or data message agreed by the parties shall not be denied its legal effect just because it is in the form of electronic signature or data message.
skill
The above answer is only for the current information combined with my understanding of the law, please refer carefully!
If you still have questions about this issue, I suggest you sort out relevant information and communicate with professionals in detail.