1. A digital signature is some data attached to a data unit, or a cryptographic transformation of the data unit. This data or transformation allows the recipient of the data unit to confirm the origin of the data unit and the integrity of the data unit and protect the data from forgery by someone (such as the recipient).

2. A digital signature is a digital string that can only be generated by the sender of the information and cannot be forged by others. This digital string is also an effective proof of the authenticity of the information sent by the sender of the information. Digital signature is the application of asymmetric key encryption technology and digital digest technology.

3. According to Article 8 of the "Electronic Signature Law of the People's Republic of China": When examining the authenticity of data messages as evidence, the following factors should be considered:

(1) The reliability of the method of generating, storing or transmitting data messages;

(2) The reliability of the method of maintaining the integrity of the content;

(3) The reliability of the method used to identify the sender Sex;

(4) Other relevant factors.

4. According to Article 13 of the "Electronic Signature Law of the People's Republic of China": If an electronic signature meets the following conditions at the same time, it is deemed to be a reliable electronic signature:

( 1) When the electronic signature production data is used for electronic signature, it is exclusive to the electronic signer;

(2) The electronic signature production data is only controlled by the electronic signer when signing;

( 3) Any changes to the electronic signature after signing can be discovered;

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

Extended information:

According to Article 29 of the "Electronic Signature Law of the People's Republic of China": If electronic authentication services are provided without permission, the Information Industry Supervisor of the State Council shall The department shall order the illegal conduct to cease; if there are any illegal gains, the illegal gains shall be confiscated; if the illegal gains exceed 300,000 yuan, a fine of not less than one time but not more than three times of the illegal gains shall be imposed.

If an electronic certification service provider suspends or terminates electronic certification services and fails to report to the information industry department of the State Council sixty days before the suspension or termination of services, the person in charge of the information industry department of the State Council who is directly responsible for it shall A fine of not less than RMB 10,000 but not more than RMB 50,000 shall be imposed.

If an electronic certification service provider fails to comply with certification business rules, fails to properly preserve certification-related information, or commits other illegal acts, the information industry department of the State Council will order it to make corrections within a time limit; if it fails to make corrections within the time limit, it will be revoked. For an electronic certification license, the person directly in charge and other directly responsible personnel shall not engage in electronic certification services within ten years.

Baidu Encyclopedia-Digital Signature

Baidu Encyclopedia-Electronic Signature Law of the People's Republic of China