If someone wants to send important documents to people in other places through the Internet, both the recipient and the sender need to apply for an electronic license from the licensing authority (CA) first. This encryption certificate includes the applicant's public key on the Internet, that is, the "public computer password", which is used for file verification.
After receiving the encrypted electronic file, the receiver uses the public key issued by CA to decrypt the file and read it.
Electronic signature is the general name of modern authentication technology. According to the Uniform Electronic Transactions Act of the United States, "electronic signature" refers to "electronic sound, consistency or procedure associated with or logically associated with an electronic record, which is signed or adopted by someone for signing an electronic record"; 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.
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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. At present, it has been changed to the Ministry of Information Technology and Industrialization. At present, more than 20 companies, including Beijing Tianwei Chengxin E-commerce Service Co., Ltd., have obtained qualifications and can provide legal electronic signature services.
Electronic signature is the general name of modern authentication technology. According to the Uniform Electronic Transactions Act of the United States, "electronic signature" refers to "electronic sound, consistency or procedure associated with or logically associated with an electronic record, which is signed or adopted by someone for signing an electronic record"; 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.