Digital currency trading method based on hardware chip

Abstract

The embodiment of the invention discloses a digital currency trading method based on a hardware chip. The method is applied to a mobile terminal. The mobile terminal comprises a system environment anda safety environment. A safety chip is built in the mobile terminal and the safety chip runs under the safety environment. The method comprises receiving an external transaction instruction input bya user in a block chain wallet application, generating unsigned transaction information according to the external transaction instruction, and sending the unsigned transaction information to a security chip; the unsigned transaction information being signed by the private key stored in advance in the security chip, and the signed transaction information being generated; receiving transaction information after the signature returned by the security chip. The technical proposal of the embodiment of the invention not only can greatly increase the safety performance of the transaction, but also can be carried by the user, and is convenient for the user to control. The invention builds a safety chip in the mobile terminal and the transaction signature is isolated to run in the safety chip.

Description

technical field [0001] The invention relates to the field of electronic technology, in particular to a digital currency transaction method based on a hardware chip. Background technique [0002] Wallet is a tool for storing and using digital currency, and plays a pivotal role in the blockchain field. The blockchain wallet involves several core concepts of wallet address, private key and public key. The user signs the transaction through the private key to prove that the user has the right to output the transaction. The private key can calculate the public key, and the public key can be passed through A series of digital signatures generate the wallet address. Therefore, the protection of private keys in blockchain wallets is a top priority. [0003] Several common types of blockchain wallets are as follows: On-chain wallet, send digital currency to a wallet address, the transaction is broadcast on the whole network, confirmed, and packed into blocks, On-chain wallet needs ...

AI Technical Summary

Problems solved by technology

[0003] Several common types of blockchain wallets are as follows: On-chain wallet, send digital currency to a wallet address, the transaction is broadcast on the whole network, confirmed, and packed into blocks, On-chain wallet needs to keep private key, and in terms of network security, the awareness and ability of ordinary users are not enough

Off-chain wallets are traded through the exchange. The user does not have a private key, and the private key is hosted by the exchange. However, in the past security incidents of the blockchain, the risk of the exchange is the greatest, and it is vulnerable to malicious attacks by hackers.

Cold wallets, that is, offline, disconnected, and wallets where the private key storage location cannot be accessed by the network, often rely on "cold" devices to store private keys, such as computers that are not connected to the Internet, mobile phones, handwritten notebooks, etc., although avoiding The risk of being stolen by hackers, but may face physical security risks, such as damage to the computer hard disk, loss or tearing of the notebook, etc.

Hot wallet, the private key is stored in a location that can be accessed by the network, and there is a greater risk of the private key being stolen by hackers

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