KNOWLEDGE-ABOUT DCEP：03 anonymity and dual offline payment

    Anonymity: DCEP is a complex multi-layer hybrid structure design with a "two-layer operating system".The system puts the People's Bank of China （central bank）in charge of managing the entire system and issuing DCEP to commercial banks.Commercial banks then make DCEP available to the public and are responsible for managing DCEP transactions made by consumers through their digital wallets.One of the advantages of DCEP is that money can be transferred from one party to another without the middleman, while all transaction information is desensitized and the transmission link is encrypted, which ensures anonymity.

    Dual offline payment: If the whole network is down and both sides of the transaction are offline, DCEP can still realize payment, so it is called " dual offline payment".Similar to two mobile phones in airplane mode, the operation of "touch" can be traded.

    But without the support of the Internet, the DCEP is at risk of being "double-traded", so it can be used more in retail scenarios, which may rely on special physical carriers, such as smart cards, as the carrier of "digital cash".