Electronic signature and electronic contract correspond. It is the same as a paper contract that needs to be stamped or signed, that is, to sign or stamp the contract text of an electronic document effectively, it needs to use an electronic signature, that is, an electronic signature in a broad sense;

At the same time, electronic signature in a narrow sense can also be understood as electronic signature technology, which is actually a "digital signature technology". It is a technical means to combine information encryption and identity authentication technology to realize that the content of electronic contract signing cannot be tampered with and denied.

To sum up, digital signature technology can be used to electronically sign an electronic contract, so that the signature identity of the electronic contract can be identified and the signature content cannot be tampered with.