Method and system for retrieving blockchain certificate when private key is forgotten

Abstract

The present invention provides a method and system for retrieving blockchain certificates when the private key is forgotten, and establishes a framework for retrieving certificates, which consists of two parts, one part is responsible for constructing declaration data, and the data declares the certificate owner How to retrieve the processing rules of the pass when the private key is forgotten; the other part is responsible for implementing the specific retrieval method represented by the statement data, which is implemented by the smart contract. The smart contract first uses the signature verification method to determine whether the input data is provided by the pass. When the data entered by the user matches the signature data, the input data will be processed according to the agreed processing rules to retrieve the lost pass. It is different from the problems in the prior art that the private key is regenerated, or the private key needs to be encrypted and stored in advance, so the cost of saving or restoring is high and difficult. The technical solution of the invention is simple to implement, low in cost and has important popularization value.

Description

technical field [0001] The present invention belongs to the core technology and application field of blockchain, and more specifically, provides a technical solution for how to retrieve the certificate corresponding to the private key when the private key is forgotten. Background technique [0002] Blockchain technology uses block chain data structure to verify and store data, uses distributed node consensus algorithm to generate and update data, uses cryptography to ensure the security of data transmission and access, and utilizes intelligence composed of automated script codes. A new distributed infrastructure and computing paradigm that uses contracts to program and manipulate data. With the popularization of the concept of Bitcoin, a large number of blockchain projects have emerged. Blockchain has attracted widespread attention due to its outstanding features such as decentralization, collective maintenance, openness and transparency, non-tamperability, and quasi-anonym...

AI Technical Summary

Problems solved by technology

For example, 1) Use mnemonics to generate private keys. The basis of this scheme is that memorizing mnemonics is easier than memorizing private keys, but mnemonics themselves also need to be kept safely, and there is a risk of forgetting

2) Use user identity information to generate a private key, but the security is not high

If the encrypted private key is submitted, there is also the possibility of the encryption key being lost

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