http://www.rfc-editor.org/rfc/rfc2539.txt
RFC 2539: Storage of Diffie-Hellman Keys in the Domain Name System (DNS), D. Eastlake 3rd1999-03-01T23:00:00-00:00A standard method for storing Diffie-Hellman keys in the Domain Name System is described which utilizes DNS KEY resource records. [STANDARDS-TRACK]