I have an encrypted private key and I know the passphrase, plus I have a salt. Is It possible to get the private key? It is from an old Bitcoin core wallet. Thanks for any help.
I do not understand. What do you have? Wallet file? Or private key exported?
Usually when you export from Bitcoin Core (dumpprivkey) it exports key to WIF format, which is not encrypted. (starting with 5.... 51 characters or starting with K or L... 52 characters).