Last active
October 25, 2023 18:33
-
-
Save protortyp/2b29809b8f7281b8f10bbe041c1b5e00 to your computer and use it in GitHub Desktop.
Attempting to get the public key
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
const ethers = require("ethers") | |
const pk = | |
"0x0471c746523d16e93d4738f882d9b0beebf66c68caa0f895db15686b57b878cfc7b3e09813ba94f1bbfaa91a06566d3d18bbf69d10bcc947325bbcd6fea97ed692" | |
const ad = "0xcD3edF915387E2555A829567cE0dBbC919834B82" | |
getPubKey = async () => { | |
const infuraProvider = new ethers.providers.JsonRpcProvider( | |
"https://ropsten.infura.io/v3/<projectID>" | |
) | |
const tx = await infuraProvider.getTransaction( | |
"0x07035a057bdddc9c0e1c07c32b341f6082f9d6be2dc39452753587c2e69fbf96" | |
) | |
const expandedSig = { | |
r: tx.r, | |
s: tx.s, | |
v: tx.v | |
} | |
const signature = ethers.utils.joinSignature(expandedSig) | |
const txData = { | |
gasPrice: tx.gasPrice, | |
gasLimit: tx.gasLimit, | |
value: tx.value, | |
nonce: tx.nonce, | |
data: tx.data, | |
chainId: tx.chainId, | |
to: tx.to | |
} | |
const rsTx = await ethers.utils.resolveProperties(txData) | |
const raw = ethers.utils.serializeTransaction(rsTx) // returns RLP encoded tx | |
const msgHash = ethers.utils.keccak256(raw) // as specified by ECDSA | |
const msgBytes = ethers.utils.arrayify(msgHash) // create binary hash | |
const recoveredPubKey = ethers.utils.recoverPublicKey(msgBytes, signature) | |
const recoveredAddress = ethers.utils.recoverAddress(msgBytes, signature) | |
console.log(recoveredAddress) | |
console.log(recoveredPubKey) | |
console.log("Correct public key:", recoveredPubKey === pk) | |
console.log("Correct address:", recoveredAddress === ad) | |
} | |
getPubKey() |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
nice job👍🏻 @pokrovskyy @chrsengel