kevhou / rsa

Encryption/Decryption Program

RSA Encryption/Decryption Program

Download ZIP and Run RSA executable

Instructions:

Create encryption & decryption keys:

1. Enter two distinctive (greater than 10) primes p and q
2. Enter an integer e so that gcd(e,phi(n)) = 1
3. Use the Public encryption key to encrypt messages.
4. Use the Private decryption key to decrypt messages.

RSA Encryption:

1. Enter e and n values in the Public encryption key
2. Enter message to be encrypted (< 100000 chars)
3. Record the ciphered text info
4. Record the number of characters in the text

RSA Decryption:

1. Enter d and n values in the Private decryption key
2. Enter the number of chars in the encrypted text
3. Enter the each chars in the encrypted text