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3 votes
1 answer
984 views

Find the public key of any ethereum account (that hasn't signed a transaction)?

I need to find the public key of a list of Ethereum addresses. Is it possible to do this only with the transaction hash of one of their transactions? Per Get public key of any ethereum account the v, …
ZhouW's user avatar
  • 1,358
4 votes
3 answers
7k views

How to encrypt a message using only the public key from web3.eth.sign?

I retrieve the public key of a users account using Web3 as follows: web3.eth.sign(web3.eth.accounts[0], web3.sha3('test'), function (err, signature) { var sigtest = signature con …
ZhouW's user avatar
  • 1,358