Android Question How to read / write Whatsapp archives?

[amorosik]

I would like to create an archive of the information contained on Whatsapp
I would therefore like to understand how to read the messages contained in the various chats, in addition to the various media such as audio files, video files, images, etc.
Same thing for writing, how to write a message in a Whatsapp chat?
(not send the message, just write it, as if it were a restore from a previous backup)

 

[DonManfred]

Whatsapp ha a official documented SQLLite-Database? I don´t think so.
I don´t think that this is possible.

 

[Erel]

You cannot access Whatsapp files.

 

[amorosik]

There are some software that already do this
How do they do it?

 

[Star-Dust]

In previous versions of WA the archives were located in the main root. You could acquire them from the PC or from other SW that could access the root. Now with the new versions, with access restrictions, the archives are stored internally and therefore only accessible with adb (maybe)

But in case you can acquire them, the type of compression is the one used by RANSOM viruses to encode data and demand a ransom. If you had the decryption key with openssl you could decrypt the db. You can find many tutorials on the web about it. I cannot tell you more

 

[DonManfred]

How do they do it?

Ask the Apps Author! We can not know what they are doing (and even not if they follow a documented route).