RSA Public Key Extractor

This is a small .NET Core CLI tool that extracts the modulus and public exponent from an RSA private key in PEM format.

Usage

Prerequisites

• .NET Core SDK installed on your machine.

Running the Tool

1. Clone this repository to your local machine:

git clone https://github.com/roelvandersteen/rsa-public-key-extractor.git

2. Navigate to the project directory:

cd rsa-public-key-extractor/src/PublicKeyExtractor

3. Build the project:

dotnet build

4. Run the tool with the path to your private key file:

dotnet run -- <private_key_file.pem>

Replace <private_key_file.pem> with the path to your RSA private key file in PEM format.

Example

dotnet run -- private_key.pem

This will output the base64-encoded modulus and public exponent extracted from the private key.

License

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