Understanding the difference in the public keys of Metamask and Ethereum
As Ethereum developers, we are not strangers for the intricacies to interact with Blockchain Ethereum. Recently, several users have been intrigued by the discrepancy between the public keys displayed in their metamask wallet and those recovered using the RPC call ethgetencryptionpublickey '.
The question: different public keys of the same private key
Let's dive into the details of what is happening. When we useETH_GeTenCryptionPubBlickey, it requests the public encryption key for a particular Ethereum account address. However, this public key is calculated based on the private key stored in Metamask. Here's why:
* Private Key:
The private key used to create an Ethereum wallet is unique to each individual.
* PUBLIC KEY CALCULATION: When you recover your public key usingETH_GETECRYPTIONPUBLICKEY, it is not directly linked to your private key. Instead, it uses a different calculation method that generates a new set of keys (public and private) based on the shared secret between its metamask wallet and blockchain Ethereum.
* Shared Secret: This shared secret is used to derive the public key from the private key.
The solution:Recovepublickey ()vs.Eth_GeTenCryptionPubLkey
To solve this problem, you can use one of two methods:
- Recovepublickey ()
:
* You can callRECOVERPUPUPUPUPUBLICKEY ()in your metamask wallet to recover the public key associated with a specific Ethereum address.
* This method provides the private key used by Metamask and allows to derive the public key from it.
2.
* You can useETH_GeTenCryptionPubBlickeyas before to recover the public encryption key to the Ethereum account address.
* However, remember that this will return a different set of keys than if you usedRecovepublickey ().
Example Code: Recovering the Public Key withRecovepublickey () of Metamask ()
JavaScript
CONST Web3 = Requires (‘Web3’);
Const Metamask = new web3 (new web3.providers.httpprovider (‘
metamask.getaccounts (). Then (accounts => {
CONST PUBLICKEY = Accounts [0] .Getpublickey ();
// Recovering the private key using the metamask recovery method
Return metamask.recoverpublickey (PUBLICKEY);
});
`
Conclusion:
The discrepancy between the public keys displayed in your metamask wallet and recovered using the so -called RPC ETH_GETENCRYPTIONPUBLICKEY can be resolved using theRecovepublicquey () or YGNCRYTIONPUBLICKEY`. Understanding how Ethereum’s addresses, private keys and shared secrets work together, you will be better equipped to navigate these complex interactions.
If you have any questions or need further clarification on this topic, feel free to ask!