RSA (key exchange)

RSA is a method for secure communication that uses math to protect messages. It involves two keys: a public key, shared openly, and a private key, kept secret. When someone wants to send a secure message, they use the public key to encrypt it. Only the holder of the private key can decrypt and read the message. This process ensures that even if someone intercepts the encrypted message, they cannot understand it without the private key. RSA relies on complex mathematics involving prime numbers, making unauthorized decryption extremely difficult.