Password Decrypter for Chromium-based browsers

This program is a Python-based Windows decryption tool for credentials saved by the three major Chromium-based browsers. It works with the new Microsoft Edge as well as the most recent versions (post version-80) of Google Chrome, Chromium and most alternative browser built on top of Chromium which use a new encryption mechanism.

Browser	Version	Desktop Market Share
Google Chrome	Any (even ≥ 80)	≈ 70%
Opera Browser	≥ 15	≈ 2.4%
Yandex Browser (partial)	Any	≈ 0.5%
UC Browser	Any	≈ 0.3%
Coc Coc	Any	≈ 0.25%
QQ Browser	Any	≈ 0.2%
Chromium Project	Any (even ≥ 80)	≈ 0.16%
Microsoft Edge	≥ 80	≈ 0.14% (legacy ≈ 5%)
Vivaldi	Any	≈ 0.04%
Brave Browser	Any	N/A
Comodo Dragon	Any	N/A

Automatic installation

1. Run our helper program to install the correct Python version and the needed dependencies automatically (experimental): cpd_helper.exe

2. Clone this repository

git clone https://git.duework.org/julien/cpdecrypt.git
cd cpdecrypt

3. Run

python cpd.py

Manual installation

1. Install Python by visiting the official source and selecting the appropriate and desired release (we use python3.8).

2. Install dependencies. Our code requires the latest pywin32 and aead.

pip install pywin32
pip install aead

If pip does not work for pywin32, you have to install it from the source, here (we use build 277).

3. Clone this repository

git clone https://git.duework.org/julien/cpdecrypt.git
cd cpdecrypt

4. Run

python cpd.py

Author

This program has been created and is being made available to you by Julien SATTI.

Context

The project was mandated by Raphaël Khoury — for an internship at Laboratoire d'Informatique Formelle (LIF) — who provided a first rough version of this decrypter for Chrome/Chromium prior to version 80.