Trying to help someone decrypt a 2016 official myetherwalletdotcom encrypted private key. We have the encrypted private key and password. Any ideas?

Trying to help someone decrypt a 2016 official mew encrypted private key. We have the encrypted private key and password. Any ideas?

Back in 2016 on the myetherwallet.com website they used to offer the option of bulk wallets which you could additionally encrypt with a password. It would then print out both the address and the encrypted private key of those encrypted wallets. And in 2016 the website let you use an encrypted private key with password to send a transaction from the website.

So this person has one of those encrypted private keys and the correct password.

but mow myetherwallet.com will no longer accept a private encrypted key for a private key to access the wallet.

Not even v5.myetherwallet.com will allow a ENCRYPTED private key although that website WILL allow you to enter a regular private key and immediately transfer the contents of the wallet somewhere else which is what this person wants to do. (He did it already with a couple of regular private keys.

So we need to decrypt the private encrypted key and turn it into a regular private key to able to use v5.myetherwallet.com to empty this wallet of his.

Oddly enough if you use archive.org and go back to 2016 to the myetherwallet.com page it offers you the chance to decrypt the private encrypted key. however it only then allows you to send a transaction rather than actually showing you what the private key looks like when it's unencrypted!

It does also derive the correct wallet address so it appears like it is doing the decryption correctly for his encrypted private key and password. And it does it even though it's on archive.org so it must be some JavaScript doing that or something that was saved by archive.org in 2016.

But because it's running on archive.org that old website won't allow you to construct a transaction file so thats not an option either.

And Unfortunately the new 2021 version 5 of the myetherwallet.com website does not allow you to enter a ENCRYPTED private key to decrypt.

So that leaves the current problem.

Now the myetherwallet.com website is open source and you can get on GitHub and you can see that THE 2016 ARCHIVE.ORG version of myetherwallet.com has got a bunch of JavaScript running to do the decryption.

I don't know what it connects to in the back but I'm just not an expert enough in the programming to see the JavaScript function that actually turns an encrypted private key into a decrypted regular private key when you put in the password. I just can't figure out how it's doing it.

Any help is appreciated!

I wonder how many other people have old mew official encrypted private keys printed out that they are having trouble using!

Thanks in advance.

Edit for reference here is the old 2016 website that handled encrypting and decrypting private keys

https://web.archive.org/web/20160101234647/https://www.myetherwallet.com/

Of you go to the "send" menu and choose enter private key if you enter an encrypted one it senses it and pops up a box to enter the password and then pops up a button that says "decrypt" and it will then decrypt it but only show the address and offer to build a transaction file .