This Flask application allows you to generate a Certificate Signing Request (CSR) with subject alternative names (SAN) and upload the private key to an Amazon S3 bucket.

• Input the domain names and other details to generate a CSR with SAN.
• Upload the private key to an Amazon S3 bucket.
• Display the generated CSR and public key.

Before running the application, ensure that you have the following:

• Python 3.x installed on your system.
• Flask and the required dependencies installed. You can install them using pip install -r requirements.txt.
• AWS access key and secret key with permissions to access the desired S3 bucket.

1. Clone this repository or download the files.

2. Install the required dependencies: pip install -r requirements.txt

3. Configure AWS credentials:

• Open the CSRgenapp.py file.
• Replace 'YOUR_AWS_ACCESS_KEY' and 'YOUR_AWS_SECRET_KEY' with your AWS access key and secret key, respectively.
• Replace 'YOUR_S3_BUCKET_NAME' with the name of your S3 bucket.

4. Run the application: python CSRgenapp.py

5. Access the application in your web browser at http://localhost:5000.

1. Fill in the domain names (comma-separated), organization, and other CSR details in the input fields.

2. Click on the "Generate CSR" button.

3. The generated CSR and public key will be displayed on the page.

This project is licensed under the MIT License.