Lindell17: Fast Secure Two-Party ECDSA Signing Scheme

Welcome to the Lindell17 repository! This project implements the Fast Secure Two-Party ECDSA Signing scheme. It focuses on enhancing security in digital signatures through elliptic curve cryptography.

Table of Contents

• Overview
• Features
• Installation
• Usage
• Contributing
• License
• Releases
• Contact

Overview

The Lindell17 project implements a protocol for secure digital signatures using the Elliptic Curve Digital Signature Algorithm (ECDSA). This two-party signing scheme allows two parties to collaboratively generate a digital signature without revealing their private keys. This method enhances security and ensures that no single party has complete control over the signing process.

What is ECDSA?

ECDSA is a variant of the Digital Signature Algorithm (DSA) which uses elliptic curves. It provides a high level of security with shorter key lengths compared to traditional algorithms like RSA. This makes it efficient and suitable for various applications, especially in constrained environments.

Importance of Two-Party Signing

The two-party signing scheme offers several advantages:

• Enhanced Security: No single party can sign without the other.
• Trust: Both parties must agree, reducing the risk of fraud.
• Flexibility: Useful in multi-signature scenarios.

Features

• Fast Execution: The implementation is optimized for speed.
• Secure: Protects against various cryptographic attacks.
• Easy Integration: Can be integrated into existing systems with minimal effort.
• Comprehensive Documentation: Detailed instructions and examples are provided.

Installation

To get started with Lindell17, follow these steps:

1. Clone the Repository:

   git clone https://github.com/SalmanYT12/lindell17.git

2. Navigate to the Project Directory:

   cd lindell17

3. Install Dependencies: Ensure you have the necessary dependencies installed. You can use pip for Python projects:

   pip install -r requirements.txt

Usage

To use the Fast Secure Two-Party ECDSA Signing scheme, follow these instructions:

1. Download the Latest Release: Visit Releases to download the latest version. Make sure to execute the downloaded file as per the provided instructions.

2. Initialize the Signing Process: Set up the two parties. Each party must generate their key pair and share the public key with the other party.

3. Sign a Message: Use the provided functions to create a digital signature collaboratively. The process involves both parties participating in generating the final signature.

Example Code Snippet

Here’s a simple example of how to initiate the signing process:

from lindell17 import ECDSASigner

party1 = ECDSASigner()
party2 = ECDSASigner()

message = b"Hello, this is a test message."
signature = party1.sign(message, party2.public_key)
print("Signature:", signature)

Contributing

We welcome contributions to improve Lindell17. Here’s how you can help:

1. Fork the Repository: Create your own copy of the repository.
2. Create a Branch: Use a descriptive name for your branch.

   git checkout -b feature/your-feature-name

3. Make Changes: Implement your feature or fix a bug.
4. Submit a Pull Request: Once you are satisfied with your changes, submit a pull request.

Please ensure your code adheres to the existing style and includes tests where applicable.

License

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

Releases

To access the latest versions of the Lindell17 project, visit the Releases section. Download the necessary files and execute them as per the instructions provided.

Contact

For questions or feedback, please reach out to the project maintainers:

• SalmanYT12: GitHub Profile

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Thank you for your interest in Lindell17! We hope this project serves your needs in secure digital signing.