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What is the working principle of digital signature?
How does a digital signature work? The following authoritative providers of Globalsign digital signatures illustrate this point for you through a simple example:

Suppose: you want to send a draft confidentiality contract to a lawyer for review through the Internet. You hope that the contract has not been stolen and tampered with during transmission, that the lawyer's contract has not been changed, and that it is confirmed to be sent from you. What should I do?

1. You copy and paste this contract into the email.

2. Then, the information hash is encrypted with the private key obtained from the public key and private key center. (e.g. e-mail and file signing certificates provided by GlobalSign)

3. Send mail.

After receiving your e-mail, the lawyer can identify it as yours after decryption.

So simply speaking, digital signature can be used for any kind of information. Whether encrypted or not, it can make the receiver confirm the identity of the sender and the integrity of the information content. A digital certificate contains the digital signature of the certificate authority, so that people can confirm that the certificate is true.

As a leader in the public trust service industry, GlobalSign has been committed to network security certification, digital certificates, digital signatures and other services since its establishment, and has many partners around the world. From June 5438 to 10, 2006, GlobalSign officially became a subsidiary of Japanese listed company GMO Internet Inc (Tokyo Stock Exchange code: 9449). Brand-new sales management mode and strong technical support will bring more reliable GlobalSign to users.