WhatsApp crypt12 decryption tool

A Java tool to decrypt WhatsApp crypt12 files.

Introduction

A Java tool to decrypt WhatsApp crypt12 files using a modified cryptography API library (based on Spongy Castle).

Requirements

• Linux. Tested on Ubuntu Linux 16.04.
• OpenJDK (not Oracle) version of Java.

Steps to Decrypt

To decrpt, do the following:

• Clone the repo.

$ git clone https://gitlab.com/stackpointer/whatsapp-crypt12.git
$ cd whatsapp-crypt12

• Compile crypt12.java.

$ javac -classpath "lib/whatsapp_spongycastle.jar:." crypt12.java

• Copy key and msgstore.db.crypt12 files to the same repo directory

$ cp /path/to/file/key .
$ cp /path/to/file/msgstore.db.crypt12 .

• Decrypt using:

java -cp "lib/whatsapp_spongycastle.jar:." crypt12

Limitations

• This will not work on Oracle Java as it require JCE provider libraries to be signed.

Creator

WhatsApp crypt12 decryption tool was created by and is maintained by Mohamed Ibrahim.

• https://twitter.com/ibrahimayoob
• https://gitlab.com/ibrahim

Copyright and License

Copyright 2008-2016 Digital Internals. Code released under the MIT license.