2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/126748This paper presents protocols for Kak's cubic transformation and proposes a modification to Diffie-Hellman key exchange protocol in order to achieve asymmetric oblivious exchange of keys.7 pages, with minor typographical corrections.Cryptography and SecurityProtocols for Kak's Cubic Cipher and Diffie-Hellman Based Asymmetric Oblivious Key Exchangetext