How to open files with Whatsapp messages with .crypt12 extension from a computer?

Question

whatsapp

1. Due to lack of space on the smartphone, I had to delete and clean everything. Before that, I copied all kinds of folders to the computer. 2. Now whatsapp message histories are urgently needed and this is a complete pipets. I can't open anything from my computer. Google is really not alo. I tried some kind of hacker prog, so there is some kind of key required. What the ..? I tried to send encrypted chats back to my smartphone - the result is zero. What to do how to be? Specially downloaded from the phone to the computer, so as not to bathe with backup! The second question looms: If I transfer the folder with chats from the phone to the computer, then the extension of these dialogs will be with .crypt? Like automatic encryption?
Again: I think my messages are .crypt12 files (example: msgstore.db.crypt12 )
How can I see the history of my messages if there is a smartphone from which they were once deleted and the presence of these files themselves on the computer? And since such a fable, then if I don’t have a smartphone, but the folders are left? (Several years ago, the phone was sold, before the sale, too, downloaded all the folders on the computer)

Answer 1

You can decrypt .CRYPT12 only if you have an encryption key, which is usually stored in the folder: /data/data/com.whatsapp/files/key
If you only have files from the SDcard/WhatsApp/Databases folder, then you can calmly delete. Decryption without a key will cost significantly more than encrypted messages.