Legal analysis: 1. Bring a copy of the business license (photocopy), a copy of the tax registration certificate (stamped with the official seal of the unit) and a USB flash drive, and apply for downloading at the window of the local tax hall;

2. Note: The handler should carry the ID card;

3. Use of CA certificate: After obtaining the CA certificate, double-click the CA certificate in the computer to complete the import and installation;

4.CA certificate is an electronic document to confirm identity and ensure the security of online information when applying online. Taxpayers shall properly keep the relevant documents and passwords of certificates and shall not disclose or deliver them to others.

5. Taxpayers use the user name and download password obtained at the time of payment to download the CA certificate from the Internet. Taxpayers have the responsibility to keep the user name and password of the download certificate confidential. After the first successful login, please modify the download password yourself and remember the password.

Legal basis: People's Republic of China (PRC) Electronic Signature Law.

Thirteenth electronic signatures meet the following conditions at the same time, as reliable:

(1) When the electronic signature production data is used for electronic signature, it belongs to the exclusive rights of 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 signature can be found;

(4) Any changes to the content and form of the data message after signature can be found.

Article 14 A reliable electronic signature has the same legal effect as a handwritten signature or seal.

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.