A security method, system and terminal using blockchain-based digital currency

Abstract

The invention discloses a method and system for using digital currencies based on a block chain as well as a terminal. The method comprises the following steps: a digital currency client sends a request for applying a digital certificate to a block chain, and receives the corresponding customer information returned by the block chain after identity and request verification; a digital certificate application is sent to a security chip through a trusted execution environment according to the customer information; the security chip generates a key pair and a digital currency wallet address according to the customer information, and outputs the digital currency wallet address to the digital currency client through the trusted execution environment; the digital currency client sends the digital currency wallet address to the block chain to ensure that the block chain acquires the digital certificate from the authentication center according to the digital currency wallet address; and the digital currency client receives the digital certificate sent by the block chain, and sends a digital certificate installation request to the security chip through the trusted execution environment to ensure that the security chip is provided with the digital certificate. Thereby, the security of the block chain digital currency wallet can be increased through the security chip and the trusted execution environment.

Description

technical field [0001] The present invention relates to the field of communication technology, and in particular to a security method, system and terminal using blockchain-based digital currency. Background technique [0002] In the current Bitcoin system, the Bitcoin address is the public key in a set of asymmetric keys, which are generated by the elliptic algorithm. The address and private key of the user account are stored in the Bitcoin wallet (that is, the digital currency wallet) file, and the private key is encrypted and decrypted by the Bitcoin client software. Currently, digital currency wallet technologies based on blockchain technology are all based on Bitcoin, which can be classified into: web wallets, multi-signature wallets, desktop wallets, and mobile wallets. [0003] Due to the decentralization and anonymity of the entire bitcoin system, once the digital currency wallet is lost, the bitcoins stored in all addresses in the digital currency wallet may be stol...

AI Technical Summary

Problems solved by technology

The existing digital currency wallet solutions all back up the private key online to form a backup digital currency wallet. Although many security measures have been taken to ensure the security of applications and data, numerous attack cases and system vulnerabilities show that this still cannot guarantee the security of digital currency wallets. Security of Digital Currency in Currency Wallet

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