-What is an electronic signature? "Electronic Signature Law" clearly stipulates that an electronic signature refers to data contained in a data message in electronic form, accompanied by data used to identify the identity of the signer and show that the signer approves its content. Data message refers to information generated, sent, received or stored by electronic, optical, magnetic or similar means. According to this law, a reliable electronic signature has the same legal effect as a handwritten signature or seal. At that time, consumers can safely "pay", "trade" and "transfer money" online with handwritten signature, "electronic version" official seal, cipher code, password or fingerprint, voice and retina structure. Second, the legislative purpose of electronic signature law. The direct purpose of the legislation of Electronic Signature Law is to standardize the electronic signature behavior, establish the legal effect of electronic signature and safeguard the legitimate rights and interests of all parties. The ultimate goal of legislation is to promote the development of e-commerce and e-government and enhance the security of transactions. Three, the main content of electronic signature law. The Electronic Signature Law focuses on five issues. First, the legal effect of electronic signature is established; The second is to standardize the behavior of electronic signature; The third is to clarify the legal status and certification procedures of certification bodies, and set market access conditions and administrative licensing procedures for certification bodies; Fourthly, the security measures of electronic signature are stipulated; Fifth, it is clear that the main body of administrative licensing of certification bodies is the competent department of information industry in the State Council. This text is not explained in detail enough. The following supplements can be made: electronic signature is a general term for modern authentication technology. According to the Uniform Electronic Transactions Act of the United States, "electronic signature" generally refers to "electronic sounds, conformity or procedures related to or logically related to electronic records, which are signed or adopted by someone for signing electronic records"; According to the United Nations Model Law on Electronic Commerce, an electronic signature is the data in electronic form contained in, attached to or logically associated with a data message, which can be used to confirm the identity of the signer related to the data message and show that the signer approves the information contained in the data message; The European Union's Electronic Signature Directive stipulates that "electronic signature" generally refers to "data in electronic form connected or logically connected with other electronic records and used as authentication methods." From the above definition, any electronic technical means that can prove the identity of the parties and approve the contents of documents in electronic communication can be called electronic signature, which is a general concept of modern authentication technology and an important guarantee for the security of e-commerce. In short, the so-called electronic signature refers to the data contained in the data message in electronic form and accompanied by data used to identify the identity of the signer and show that the signer approves its content. Generally speaking, electronic signature is an electronic signature of electronic documents through cryptographic technology, which is not a digital visualization of written signature, but similar to handwritten signature or seal, and can also be said to be an electronic seal. * *< Electronic Signature Law of People's Republic of China (PRC): It was adopted by the 11th meeting of the Standing Committee of the 10th NPC on August 28th, 2004 and came into force on April 1 2005.