Decrypt db.crypt files

Question

I wonder if there is any way to decrypt files with the extension db.crypt in general, on the Android platform and there is some API that does this work?

Answer 1

According to this article the files with the extension .db.crypt use a 192 key bits AES, whose value is 346a23652a46392b4d73257c67317e352e3372482177652c.

To decrypt you can use Openssl which is pre-installed on Linux, Windows can be downloaded here.

To decrypt you can use the shell-script down below.

#!/bin/sh
openssl enc -d -aes-192-ecb \
    -in "$1" -out "$2" \
    -K 346a23652a46392b4d73257c67317e352e3372482177652c

To use it just call:

~$ NomeDoScript.sh msgstore.db.crypt msgstore.db

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Returning to the subject of the question, on Github there is a project called whassup who does exactly what you want in this page(Dbdecryptor.java) you can see the routine responsible for encrypting and decrypting messages.