Information, Computer and Network Security Terms Glossary and
Diffie-Hellman (DH) algorithm is a key agreement algorithm published in 1976 by Whitfield Diffie and Martin Hellman. Diffie-Hellman does key establishment, not encryption. However, the key that it produces may be used for encryption, for further key management operations, or for any other cryptography. Diffie-Hellman is now part of the IPSec standard.