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I have tried using the eth_account library but it doesnt work on newer transactions (type 0x02 transactions). What is a method of retrieval that would work on those transactions?

from eth_account._utils.signing import extract_chain_id, to_standard_v, serializable_unsigned_transaction_from_dict 
from eth_account._utils.legacy_transactions import ALLOWED_TRANSACTION_KEYS

s = web3.eth.account._keys.Signature(vrs=(
    to_standard_v(extract_chain_id(tx.v)[1]),
    web3.toInt(tx.r),
    web3.toInt(tx.s)
))


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.legacy_transactions import serializable_unsigned_transaction_from_dict
ut = serializable_unsigned_transaction_from_dict(tt)


print('public key')
s.recover_public_key_from_msg_hash(ut.hash())
ChuanC
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1 Answers1

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Take a look to this previously asked questions, you should find the answer there:

ethers.js Recover public key from contract deployment via v,r,s values

How to recover sender's public key from a transaction json object with Ethers (Updated answers)

Alexander Herranz
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  • those solutions uses Js. Is there currently any method for python? – ChuanC Feb 20 '23 at 17:15
  • Yes sure, but with different library. This is for you: https://web3py.readthedocs.io/en/v5/

    You can also check it out here: https://ethereum.org/en/developers/docs/programming-languages/python/

     – Alexander Herranz Feb 20 '23 at 17:19