Diffie-Hellman Diffie-Hellman is a public key distribution scheme First public-key type scheme, proposed in 1976 WDiffie me hellman "New directions in Cryptography", IEEE Trans. Information Theory, IT-22, pp644-654, Nov 19762 Diffie-Hellman • Diffie-Hellman is a public key distribution scheme • First public-key type scheme, proposed in 1976. – W Diffie, M E Hellman, "New directions in Cryptography", IEEE Trans. Information Theory, IT-22, pp644-654, Nov 1976