- Updated README files

- Updated toml file
- Created .in file

Author: Ricky

README.md

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-# dlms-encrypt-decrypt-tool
+# dlms-encrypt-decrypt-tool
+
+## Supported language
+
+|  Language  | Directory |   Build tool   |
+|------------|-----------|----------------|
+| Python     | `python/` | setuptools     |
+| Node.js    | `js/`     | npm            |
+| C#         | `csharp/` | .NET CLI       |
+| Java       | `java/`   | Maven          |
+| C++        | `cpp/`    | CMake          |
+| Rust       | `rust/`   | Cargo          |
+
+### 📦 How to use
+
+Each directory has its own README file

python/MANIFEST.in

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+include README.md
+include LICENSE

python/README.md

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+# 🛡️ DLMS Crypto Tool
+
+**DLMS Crypto Tool** is a Python package and command-line interface (CLI) utility for encrypting, decrypting, and authenticating DLMS APDU messages. It offers both a modular API for integration into your Python projects and a standalone CLI for quick operations.
+
+## ✨ Features
+
+- **🔒 Encryption:** Encrypts DLMS APDU messages.
+- **🔑 Decryption:** Decrypts APDU messages.
+- **🧾 Authentication:** Generates authentication tags.
+- **💻 CLI Interface:** Use command-line options to perform encryption, decryption, authentication, and key generation.
+- **📁 File I/O Support:** Optionally load input data from files and output results to files.
+- **📝 Verbose Mode:** Provides detailed logging for debugging and traceability.
+- **📚 Documentation:** Detailed docs generated using MkDocs to guide you through using the tool.
+
+## 🚀 Requirements
+
+- Python 3.6 or higher
+- [cryptography](https://pypi.org/project/cryptography/)
+
+## 📦 Installation
+
+Install **DLMS Crypto Tool** from PyPI using pip:
+
+```
+pip install dlms_crypto_tool
+```
+
+Alternatively, clone the repository and install locally:
+
+```
+git clone https://github.com/ric-geek/dlms-encrypt-decrypt-tool.git
+cd dlmscrypto
+pip install .
+```
+
+## How to use it
+
+The package exposes a CLI command called `dlmscli` for easy interaction.
+
+🔑 Generate a Random Encryption Key
+
+```
+dlmscli -k
+```
+
+🔐 Encrypt an APDU Message
+
+System Title = 5249435249435249\
+Frame Counter = 80000001\
+Encryption Key = 454E4352595054494F4E4B45594B4559\
+Authentication Key = 41555448454E5449434154494F4E4B45\
+APDU = c001810001000060010aff0200
+
+```
+dlmscli -e 5249435249435249 80000001 454E4352595054494F4E4B45594B4559 41555448454E5449434154494F4E4B45 c001810001000060010aff0200
+```
+Result
+```
+Encrypted/Decrypted APDU: 0de63f2331a09aa85e8830f5f3
+```
+
+🔓 Decrypt an APDU Message
+
+System Title = 5249435249435249\
+Frame Counter = 80000001\
+Encryption Key = 454E4352595054494F4E4B45594B4559\
+Authentication Key = 41555448454E5449434154494F4E4B45\
+APDU = 0de63f2331a09aa85e8830f5f3
+
+```
+dlmscli -d 5249435249435249 80000001 454E4352595054494F4E4B45594B4559 41555448454E5449434154494F4E4B45 0de63f2331a09aa85e8830f5f3
+```
+Result
+```
+Encrypted/Decrypted APDU: c001810001000060010aff0200
+```
+
+🔎 Authenticate an APDU Message
+
+System Title = 5249435249435249\
+Frame Counter = 00000001\
+Encryption Key = 454E4352595054494F4E4B45594B4559\
+Authentication Key = 41555448454E5449434154494F4E4B45\
+APDU = 0de63f2331a09aa85e8830f5f3
+```
+dlmscli -a 5249435249435249 00000001 454E4352595054494F4E4B45594B4559 41555448454E5449434154494F4E4B45 0de63f2331a09aa85e8830f5f3
+```
+Result
+```
+TAG: 62d423292e0fe5320370881d
+```
+
+## 📜 License
+
+This project is licensed under the ### GNU General Public License v3.0
+
+## 🙏 Acknowledgments
+
+Special thanks to the [cryptography](https://github.com/pyca/cryptography) team for providing an excellent library.
+
+
+
+

python/pyproject.toml

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+[build-system]
+requires = ["setuptools>=42", "wheel"]
+build-backend = "setuptools.build_meta"
+
+[project]
+name = "dlms_crypto_tool"
+version = "0.0.1"
+description = "A tool for encrypting, decrypting, and authenticating DLMS APDU messages."
+readme = "README.md"
+license = { file = "LICENSE" }
+authors = [
+  { name = "ricgeek", email = "solidkind@gmail.com" }
+]
+requires-python = ">=3.6"
+dependencies = [
+    "cryptography"
+]
+
+[project.scripts]
+dlmscli = "dlms_crypto_tool.cli:main"