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In 2005, the Electronic Signature Law was promulgated and implemented. Electronic signature refers to any electronic technical means that can prove the identity of the parties and approve the contents of documents in electronic communication, which can be called electronic signature.

The purpose of electronic signature is to sign the electronic version of Mid-Autumn Festival greeting cards, invitations and construction contracts. Electronic signature means that users can sign on electronic devices. At present, general contracts can be signed electronically, and when handling banking business, electronic signatures are used, which is more secure.