Organization code certificate IC card, also known as electronic copy of organization code certificate, is an e-commerce security platform PKI built by enterprises, institutions, organization code registration departments and e-commerce security certificate management institutions to ensure normal e-commerce activities on the Internet. The specific method is that the code management organization undertakes the identity audit of the certificate applicant, applies for the certificate to the Electronic Commerce Management Center (CA) after passing the audit, and writes the digital certificate into the electronic copy of the code certificate in a secure environment, thus realizing the integration of the electronic copy of the code certificate and the electronic commerce digital certificate. A digital certificate consists of three parts: the user's identity information, the public key and the digital signature of the CA on the certificate. The main functions of the card are: when not connected to the internet, the code and its basic information can be shared; The second is "one card is multi-purpose"