Rivest Shamir Adleman
Ron Rivest, Adi Shamir and Leonard Adleman (RSA) created one of the first practical public-key cryptosystems. The RSA encryption algorithm was based on the earlier work of Diffie-Hellman. RSA involves a public key and a private key. The public key is used for encrypting messages and is widely shared. The private key is used for decrypting messages encrypted with the public key. RSA was released into the public domain on 6th September 2000.