VIRTUAL CURRENCY TRADING SYSTEM USING VIRTUAL CURRENCY, USER TERMINAL ON USER SIDE, VIRTUAL CURRENCY TRADING SYSTEM SUPPORT SYSTEM, AND VIRTUAL CURRENCY TRADING METHOD

摘要

To provide a virtual currency trading system capable of securely holding a private key used to sign a transaction in a blockchain network.SOLUTION: In a virtual currency transaction system 100 using virtual currency, in a virtual currency wallet management 4 provided in a sender terminal 1, a transaction as transaction information, a virtual currency address as authentication information, a public key, a secret key, and information required for other authentication are set. A virtual currency wallet application 13 divides the secret key into bits and converts the secret key into a bit-wise secret key, and performs a tally division process to generate a plurality of divided tally character strings, and divides and stores the generated plurality of division tally character strings in a plurality of servers 20. Further, the secret key is deleted from the virtual currency wallet.SELECTED DRAWING: Figure 1