I recently fell victim to an inferno contract that took a significant amount of my ERC-20 coins. I realize that this is a Bitcoin site, but a white hat hacker approached and offered to help, and told me that I am able to recover my funds, but I first needed to create a signature transaction by sending 0 ETH to myself but placing my BTC derived BIP32 root key that was converted into the hexidecimal form into the hex data portion of the Metamask transaction.
I first responded that I did not see how I could recover the funds, and secondly, if I place the converted root key in the data field, anyone could view the Tx, convert it back, and steal my private keys. He then said that this is not possible anymore due to the way elliptic curve keys are now, and directed me to this taproot link: https://cronokirby.com/posts/2021/08/taproot-and-bip32/. This is all way above my head and if anyone is able to provide some information, I would greatly appreciate it. Is giving out your BIP32 irrelevant now like he said and is there such thing as creating a signature transaction? I know that my tokens likely cannot be recovered, but of course, there is always a small hope that something may be able to be done.