Electronic signature is data in electronic form, which is associated with data message (electronic document, electronic information) to identify the identity of the signer and show that the signer approves the content of the data message. Electronic signature is an online identity authentication system based on international PKI standard, and digital certificate is equivalent to online identity card. Through the third-party authoritative authentication of digital signature, it can effectively authenticate online identity, help each subject identify each other's identity and show their own identity, and has the functions of authenticity and anti-denial. Different from physical ID cards, digital certificates also have the characteristics of security, confidentiality and tamper resistance, which can effectively protect and securely transmit information transmitted by enterprises on the Internet.
How to use electronic signature?
The system using digital certificate needs to install the root certificate provided by the certification authority, and the user's digital certificate is stored in the corresponding media. If a certificate is used, the user will use the certificate media and user password according to the system prompt. In general, the system will automatically prompt the user to show the digital certificate or insert the certificate medium (IC card or key). After the user inserts the certificate media, the system will ask the user to enter the password. At this point, the user needs to enter the password obtained when applying for the certificate. After the password is verified correctly, the system will automatically call the digital certificate for related operations.
Is electronic signature safe?
Digital signature is created and verified by encryption method, using "public key encryption method" and relying on asymmetric algorithm, so the possibility of signature forgery is almost zero. Digital signature uses a set of key pairs, namely "public key" and "private key", to create digital signature, encode and decode data and verify signature. The accuracy of its verification is unmatched by manual signature and seal verification. Digital signature can better ensure the security and confidentiality of information on the public network, ensure the integrity of data, and avoid data being illegally tampered with. Its security is much higher than that of traditional stamp and handwritten signature.
What does a signature do?
Electronic signature has three main functions: one is to prove the source of the document, that is, to identify the signer; The second is to show the signer's confirmation of the contents of the document; The third is to form the basis for the signatory to be responsible for the correctness and completeness of the document content. It has the same effect as the signature and seal in traditional business activities and has the same legal effect.
What is the relationship between electronic signature and e-commerce?
Electronic signature is the basis of electronic commerce. Electronic signature is the "identity card" and "license" in e-commerce transactions, and it is the guarantee for the security of e-commerce transactions. Electronic signature provides the possibility for the openness of e-commerce and global trading, and the confirmation of identity and information content in e-commerce is the basis for formulating trading rules in e-commerce. Electronic signature solves some key legal problems in the development of e-commerce, and realizes the legalization of electronic contracts, the standardization of electronic transactions and the legalization of e-commerce.
China electronic signature network http://www.eschina.info.