🔒 Tern - Lightweight CLI Encryption & Compression Tool

Tern is a powerful, lightweight command-line tool designed for seamless file encryption, decryption, compression, and decompression. It provides a versatile set of features, including advanced "monofile" operations for combining, encrypting, and verifying files.

🎉 Features

• Encrypt/Decrypt Files: Secure your files with customizable encryption keys.
• Compress/Decompress Files: Save storage space while preserving file integrity.
• Monofile Operations: Combine, compress, and encrypt multiple files into a single mono file and easily reverse the process.
• Direct Processing (-nocopy): Avoid creating additional copies while processing files.
• Hash Verification: Ensure the integrity of your files in a monofile.
• Wildcard Support: Support for bash-wildcards like , file *.txt etc
• Ease of Use: Lightweight, fast, and easy-to-use interface.

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🛠️ Installation

Clone the repository:

git clone https://github.com/Lithax/tern.git
cd tern

Download Distro:

basic.zip -> Needs java 17 or higher locally installed to run

jre_included.zip -> has a JRE included, but is large in file size (Adoptium Java SE 23 minimal JRE)

Use the env.bat file to add Tern to your systemenviroment variables

Build the executable (instructions in the readme of the distros).

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🖥️ Usage

The general syntax for Tern commands is:

tern [options] [arguments]

🔧 Options

Option	Description
--help	Displays the help message with all commands.
--version	Displays the current version and author.
--enc [key] [files]	Encrypts files using the specified key. Use -nocopy to process directly.
--denc [key] [files]	Decrypts files using the specified key. Use -nocopy to process directly.
--com [files]	Compresses files. Use -nocopy to process directly.
--dcom [files]	Decompresses files. Use -nocopy to process directly.
--mono [arg] [key] [files]	Monofile operations (encrypt, decrypt, verify). See below for details.

⚙️ Monofile-Specific Arguments

Argument	Description
-in	Encrypts and compresses files into a single mono file.
-out	Decrypts and decompresses a mono file, restoring original files.
-verify	Verifies the integrity and hashes of files in a mono file.

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📝 Examples

🔒 Encrypt Files

Encrypt a file using a key:

tern --enc mykey file1.txt

🔓 Decrypt Files

Decrypt an encrypted file using a key:

tern --denc mykey file1.enc

📥 Compress Files

Compress a file:

tern --com file1.txt

📤 Decompress Files

Decompress a compressed file:

tern --dcom file1.com

🧩 Monofile Operations

1. Create a Mono File
   Combine, compress, and encrypt multiple files into a mono file:

   tern --mono -in mykey file1.txt file2.txt file3.txt

   Copy & Paste:

   tern --mono -in mykey file1.txt file2.txt file3.txt

2. Extract Files from Mono
   Decrypt and decompress files from a mono file:

   tern --mono -out mykey mono_file.tern

3. Verify Mono File Integrity
   Verify the hashes of files stored in a mono file:

   tern --mono -verify mykey mono_file.tern

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📖 Documentation

Detailed documentation is available in the Wiki.

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📋 License

This project is licensed under the Apache 2.0 License. See the LICENSE file for more details.

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🚀 Contributing

Contributions are welcome! To get started:

1. Fork the repository.
2. Create a new branch (git checkout -b feature-branch).
3. Commit your changes (git commit -m "Add feature").
4. Push to the branch (git push origin feature-branch).
5. Create a Pull Request.

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🖤 Acknowledgments

Created with care by @Lithax. Visit GitHub Profile.

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🎨 ASCII Art

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