A simple app to calculate the public key, private key and encrypt decrypt message using the RSA algorithm.
Step 1. Find two random prime number (more than 100 better)
Step 2. Choose the value of 1 mod phi
Step 3. Choose the value of e and d, e (public exponential) and d (private exponential). Those two numbers will be used as the two key to encrypt and decrypt the message
Step 4. Encrypt and Decrypt your message using the numbers you got from the previous step.