RSA- Encryption

The objective of this project is to implement the RSA public-key cryptosystem using an 8051 microcontroller. The implementation includes both encryption and decryption processes. Communication between the 8051 microcontroller and a laptop will be established using a serial interface, facilitated by a terminal application such as HyperTerminal. Prime numbers p and q, essential for key generation, will be input from the PC and verified for primality using the Fermat Primality Test at a security level of 5. The microcontroller will calculate public and private keys, encrypt the plaintext received from the terminal, and send the resulting ciphertext back to the PC.