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FNMT Crack

FNMT Crack is a tool designed to recover the password of a natural person's FNMT (Fábrica Nacional de Moneda y Timbre) digital certificate by means of a brute force attack. This software is intended for legal purposes only and should be used only by the owner of the digital certificate.

Author: Carlos Padilla (cpadlab)

Table of Contents

• Requirements
• Install
• Usage
• Examples
• Legal Notice
• License

Description

This tool allows you to try to recover the password of a PKCS#12 (.p12) file using a password list (wordlist). The execution of the process can be parallelized by using threads to increase efficiency.

Requirements

Python Modules: argparse, cryptography

pip install -r requirements.txt

Install

git clone https://github.com/cpadlab/fnmtCrack.git
cd fnmtCrack && pip installRead in English -r requirements.txt

Usage

To run the tool, you need to provide the path to the PKCS#12 file and a list of passwords. Optionally, you can specify the number of threads to use. Example of execution with python:

python fnmtcrack.py -f path/to/certificate.p12 -w path/to/wordlist.txt -t 4

You can download the binary from Release 1.0 or you can run it directly from the repository. Example of execution with executable:

./dist/fnmtcrack -f path/to/certificate.p12 -w path/to/wordlist.txt -t 4

Parameters

• -f o --file: Path to PKCS#12 file.
• -w o --wordlist: Path to the password list file.
• -t o --threads: Number of threads to be used (optional, default is 3).

Legal Notice

This software should be used only for lawful purposes. The author is not responsible for any misuse of this tool.

Example of output

┏┓┳┓┳┳┓┏┳┓  ┏┓┳┓┏┓┏┓┓┏┓
┣ ┃┃┃┃┃ ┃   ┃ ┣┫┣┫┃ ┃┫   by cpadlab
┻ ┛┗┛ ┗ ┻   ┗┛┛┗┛┗┗┛┛┗┛
========================================
fnmtCrack       Carlos Padilla (cpadlab)
========================================
Certificate Path: path/to/certificate.p12
Wordlist Path: path/to/wordlist.txt
Threads: 5
========================================
Wordlist Size: 10000
Block Size: 2500
========================================
[Info] Testing password: password1
[Info] Testing password: password2
...
========================================
[Successful] [3ºt] Password found: your_password

If the password is not found in the list of passwords provided, the tool will display:

[Err] Password not found

Licencia

This project is licensed under the MIT License. See the LICENSE file for more details.