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Extract public key from PEM Certificate using Node.js

This Node.js script lets you extract the public key from a PEM certificate and save it locally to your filesystem. Follow the steps below to use the script:

Prerequisites

Before using the script, kindly ensure that you have Node.js installed on your system. You can download Node.js from the official website.

Getting Started

  1. Download the script:

    Download the extractPublicKeyFromCertificate.js file from this repository and save it to a location on your computer.

  2. Open a Terminal or Command Prompt:

    Navigate to the directory where you saved the extractPublicKeyFromCertificate.js file using the terminal or command prompt.

  3. Generate Public Key:

    To run the script and generate the public key, use the following command:

    node extractPublicKeyFromCertificate.js <path/to/certificate.pem> <path/to/public_key.pem>

    Replace <path/to/certificate.pem> with the path to your PEM certificate file, and <path/to/public_key.pem> with the desired output file path for the public key to be extracted.