Created
September 14, 2019 11:39
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Python script for getting ethereum public key from transaction id
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| import web3 | |
| w3 = web3.Web3(web3.HTTPProvider('https://geth.golem.network:55555')) | |
| tx = w3.eth.getTransaction('0x00ee93fd1e6fdbdf841b4458a078210449dce89525502c965fd3534ba397e2e3') | |
| tx.hash | |
| from eth_account._utils.signing import extract_chain_id, to_standard_v | |
| s = w3.eth.account._keys.Signature(vrs=( | |
| to_standard_v(extract_chain_id(tx.v)[1]), | |
| w3.toInt(tx.r), | |
| w3.toInt(tx.s) | |
| )) | |
| from eth_account._utils.transactions import ALLOWED_TRANSACTION_KEYS | |
| tt = {k:tx[k] for k in ALLOWED_TRANSACTION_KEYS - {'chainId', 'data'}} | |
| tt['data']=tx.input | |
| tt['chainId']=extract_chain_id(tx.v)[0] | |
| from eth_account._utils.transactions import serializable_unsigned_transaction_from_dict | |
| ut = serializable_unsigned_transaction_from_dict(tt) | |
| s.recover_public_key_from_msg_hash(ut.hash()) |
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Thx for the gist and the improvements. I was able to dig into some edge cases:
0x03transactions are not supported0x00legacy transactions are not handled correctly according to EIP 155 (for values where v=27 or v=28) and there is notchainIdaccessListare not handled correctly.I tried to fix all of those and posted a gist for the slightly longer version here: https://gist.github.com/kernoelpanic/423c61f90e81e4c9d473ff6fda783559