First of all, you need to register the mobile app and complete the advanced real-name authentication, because users who have not passed the advanced real-name authentication cannot make electronic signatures. After the account is logged in, search for industry and commerce in the search box, click subscribe, and click electronic signature. At this point, you can view the file to be signed. Click the record to be signed, drag the page to the bottom, click the signature of the pen, and enter the signature password to sign. Draw the signature manually, and then click Save to complete the signing process.

Electronic signature verification data refers to data used to verify electronic signatures, including codes, passwords, algorithms or public keys. Electronic signature is generally an electronic contract agreement, which is signed by electronic equipment. Compared with the traditional paper contract, the biggest problem of electronic contract is how to sign it. Paper handwriting can pass judicial authentication and lock the identity of the signer. The signatures of many electronic contracts are only in the form of signatures, and the data retained are insufficient and unrecognizable. Therefore, many companies use CA certification, which is similar to sending an official seal to people for identification. But there are many problems. At present, handwritten electronic signatures can count more than 120 items. Through expert discussion on judicial handwriting and other aspects, the ability of forensic identification of electronic data can be determined, which can effectively trace the identity of the signer.