Termux Securize

A secure login system for Termux that protects access using encrypted credentials, login tracking, and emergency bypass support. Designed with security and flexibility in mind.

Features

1. Encrypted Username & Password Authentication

• User credentials are stored securely.

• Passwords are hashed using SHA-256 via openssl before saving or checking.

• Ensures credentials cannot be read directly from the storage file.

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2. Emergency Unlock Using a Secret Username

• If you forget your credentials, entering a predefined emergency username will bypass the lock.

• This username is also stored and compared securely using hashing.

• Helps in recovery without needing to delete the script manually.

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3. Login Log Tracking

• All login attempts are logged in login.log.

• Each entry includes:

  • Timestamp

  • Input username

  • Result (Success or Failed)

• Helps track unauthorized or failed login attempts.

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4. ASCII Banner Using Figlet

• Displays a stylized terminal banner at login using figlet.

• Makes the login prompt visually distinct and stylish.

• Enhances branding or personalization.

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5. Ctrl+C / Ctrl+Z Protection

Prevents bypassing the login screen using keyboard interrupts like:

• Ensures the login script can’t be force-terminated by the user.

  • Ctrl+C (SIGINT)
  • CTRL+V (SIGTSTP)

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6. Modular Scripts

• Main login handled by login.sh

• Credential management handled by change-creds.sh

• Keeps code organized and easier to maintain or upgrade.

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Installation Guide

1. Clone the Repository

git clone https://github.com/VizXtreme/termux-securize && cd termux-securize

2. Install Dependencies

pkg update && pkg install openssl openssl-tool figlet -y

3. Create Required Directory

mkdir -p ~/.termux-login

4. Copy Scripts

cp login.sh change-creds.sh setup-creds.sh ~/.termux-login/
chmod +x ~/.termux-login/*.sh && cd

5. Add Auto-login Hook

Append this line at the top of ~/.bashrc:

[ -f "$HOME/.termux-login/login.sh" ] && bash "$HOME/.termux-login/login.sh"
clear
bash motd.sh

Note: Restart Termux or run source ~/.bashrc to test.

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Usage

Setup Credentials

Run the credential changer script:

bash ~/.termux-login/setup-creds.sh

Follow the prompt to set a new username and password. Your password will be hashed using SHA-256 and stored securely in ~/.termux-login/creds.txt.

Emergency Bypass

If you forget your credentials, enter your emergency username (hashed internally) to unlock access.

Refer to Emergency Bypass to set it up.

Credential Format

creds.txt contains:

USERNAME (plain)
PASSWORD_HASH (SHA256)

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Logging

All login attempts are saved in:

~/.termux-login/login.log

With timestamps, success/failure status, and the user entered.

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Contribution

Feel free to contribute or suggest improvements via issues.

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License

MIT License