admin

Metamask: How to recover public key using ecRecover in Python?

I can provide you with an article to restore a public key in Python.

Metaske: Restration of public keys without Eccover

In this article we will process of restoring the public keys from Metamask it “Ececover” method in JavaScript. This isfuul if you have to check signatures or internal services that requital signature.

Requirements

Before yu Start, McEs sure yu:

  • A metamast postal installed on your device.

  • The required library installed: Ethers.js andWeb3.

3 .. familiarity With JavaScript and the Ethereum Blockchain API.

Step 1: Get the account eddress

First you must receive theudress of the account from the back to you whatt the public back. You can do by calling the “Getaccountaddress ()in web3 instance:

JavaScript

Const web3 = new web3 (window.thereum);

Const account = expects Window.ethereum.request

Method: ‘Personal_ecrecover’,

Parameter:

News,

// Yourpersonal restaurant seeds (optional)

‘your_seeed_here’

],,,

out of: {

Name: ‘Your name’,

E -Mail: ‘your_email@example.com’,

Image: ‘ // optional

}

})

`

Step 2: Call ECRECOVER on

As soon as you has an account in the eddress, call the “ECRECOVER ()” method to the restore thea public key:

`JavaScript

Const ec = new ether.jsbridge ();

Const Recoveryssion = Waits Web3.eth.Getectsarecoveryssion (account);

Const Signature Buffer = Waits web3.et.ecover (recoveryssion);

Const recoveredpublickey = waiting ec.ecovertature (signature buffer, ‘your_signature_here’);

`

In this example:

  • ECRECOVER () returns a recovery.

  • GETECDSRECOSSSSSSSSS () is a recovery for the account.

  • surcover ()

  • The result is returned as a buffer.

Step 3: Convert to Web3 eddress

To convert the recovered the public key into a Web3-compatible address, you can a following code:

`JavaScript

Const web3 = new web3 (window.thereum);

Const recoveredadddress = expects in the window.thereum.request ({{{{{{{{{{

Method: ‘Personal_ecrecover’,

Parameter:

Recoveredpublicky,

// your in the restoration (optional)

‘your_recovery_seeed_here’

],,,

out of: {

Name: ‘Your name’,

E -Mail: ‘your_email@example.com’,

Image: ‘ // optional

}

})

`

This returns the restored eddress.

Example uses

Gere is an example -application for access, showing a public teth “ecrecover” in Python can be restor:

`Python

Import Web3

Set up the Web3 instance with your local network

w3 = web3.web3 (web3.httprovider ('

Get the Metamask accountredress

Account_address = Waiting w3.eth.request (

'Personal_ecover',

Params = [

B'message ',

to sign your message or data

'Your_seeed_Here'

Optional Personal recovery seeds

],,,

From = {'name': 'your name', 'e -Mail': 'your_email@example.com'}

)))

Get the meeting for the academic

recover_ession = Waiting w3.eth.gepecdsarecoveryssion (account_address)

With the recovered public key, create a significant object

Signature_buffer = waiting w3.et.

Sign the message without recovered signature

Signer = web3.et.account.sign (

"Message",

to sign your data

recover_ session,

Signature_ buffer

)))

Send the signed message with Web3

w3.es.sendsignedtransaction (signator)

This code show to restore a public key, create a significant object and sign a message “Ecrecover” in Python.

choose choose right your needs