Private key processing method, access method, medium and device corresponding to the method

Abstract

This application discloses a private key processing method, an access method, and a medium and device corresponding to the method. By performing a digest operation on the user's private key, the private key digest corresponding to the user's private key is obtained; wherein, the private key corresponding to the user's private key There are multiple different private keys corresponding to the digest; use the user's key to encrypt the user's private key to obtain the user's encrypted private key; combine the user's encrypted private key and the corresponding private key digest of the user's private key to obtain the user's private key Encrypt data. Because the private key digest corresponding to the user's private key obtained in this application actually corresponds to multiple different private keys. Even if a malicious user finds a private key that is consistent with the private key digest corresponding to the user's private key after the digest operation, the private key is not necessarily the real private key of the user, thus reducing the possibility of the malicious user cracking the real private key. Risk to user's private key.

Description

technical field [0001] The present invention relates to the technical field of information encryption, in particular to a private key processing method, an access method, and a medium and a device corresponding to the method. Background technique [0002] In the prior art, the client usually needs to encrypt and save the private key of the user. At present, the method of encrypting the user's private key is: use the encryption password input by the user to generate the user's key (key), and then use the key to encrypt the user's private key and the private key digest corresponding to the user's private key, and obtain the user's The encrypted data of the private key. Wherein, the private key digest corresponding to the user's private key is obtained by performing a digest operation on the user's private key. [0003] If the user wants to retrieve the private key, the user can enter the encryption password to the client, and the client generates a key according to the user'...

AI Technical Summary

Problems solved by technology

[0004] However, in the process of verifying whether the encrypted password provided by the user is correct, there may be cases where a malicious user obtains a successfully verified encrypted password by continuously trying to encrypt the password.

Since each private key digest almost only corresponds to one private key, the private key obtained by successfully verifying the encrypted password is very likely to be the real private key of the user, so there is a risk of malicious users cracking the real private key of the user

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