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I am writing a test for a function in my smart contract which attempts to verify that a message comes from the signer. I'm currently using web3.eth.accounts.sign to sign my message with the sender account. I then use the response hash (signedMessage) to recover my address.

const sender = accounts[0] const message = web3.utils.soliditySha3('hello-world') const signedMessage = await web3.eth.accounts.sign(message, sender) const {signature, messageHash, v, r, s} = signedMessage const recoveredAddress = await web3.eth.accounts.recover({ messageHash: messageHash, v: v, r: r, s: s }) console.log("sender: ", sender) console.log("recoveredAddress: ", recoveredAddress)

This is what the terminal is outputting for my console.log:

sender: 0x627306090abaB3A6e1400e9345bC60c78a8BEf57 recoveredAddress: 0x170e85941BAeE85CFEA0cAd2EDf798DC5C287AA1

Why is the recovered address different from the sender address?

EDIT: The issue I was having was that I was using the public key to sign my message. I should have been using a private key.

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    Thanks for posting the solution. You could post an answer with the corrected code and accept your own answer for the win. Commented Feb 8, 2019 at 19:50

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The issue I was having was that I was using the public key to sign my message. I should have been using a private key.

Since you can't get a private key from a public key, I searched online for a private key/public key pair and hardcoded the value for my test.

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