Definition of Diffie–Hellman in US English:

Diffie–Hellman

noun

Cryptography
  • 1Attributive Designating a protocol that allows two people to create a shared private key without the key being transmitted; employing or based on this protocol.

  • 2A protocol that allows two people to create a shared private key without the key being transmitted.

Origin

1970s. From the names of Whitfield Diffie (b. 1944) and Martin Edward Hellman (b. 1945), U.S. cryptographers, who devised the protocol in 1976.

Pronunciation

Diffie–Hellman

/ˌdɪfiˈhɛlmən/