2021-csci-ga3205-hw-11/README.md

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# 2021 CSCI-GA3205 Homework 11
Author: Vicky Rampin
## Prompt
Write a program to encrypt and decrypt a message (string) using the RSA algorithm. You can implement the functions you need or use the libraries.
## Installation
This script is made with Python 3.8 and uses the `argparse` and `pycryptodome` libraries. Ensure that you have [Python 3.8+](https://www.python.org/downloads/) and these libraries installed in order to run this script correctly.
## Usage
First, clone this repository to your machine. Open the command line on your machine and navigate to where you cloned this repository. To get help using `cd`, use [this tutorial](https://swcarpentry.github.io/shell-novice/02-filedir/index.html).
Before running the script, you should know it expects one argument:
1. `--msg`: provide a message that you want to encrypt and decrypt
With this in mind, you can run it like so:
```
$ python index.py --msg="helloWORLD"
```
It will encrypt and decrypt the message using a randomly generated public and private key pair (RSA), and print as it goes.