The Use of AES-192 and AES-256 in Secure RTP
David A. McGrew · 2011
This memo describes the use of the Advanced Encryption Standard (AES) with 192-and 256-bit keys within the Secure RTP (SRTP) protocol.It details counter mode encryption for SRTP and Secure Realtime Transport Control Protocol (SRTCP) and a new SRTP Key Derivation Function (KDF) for AES-192 and AES-256.Status of This Memo This is an Internet Standards Track document.This document is a product of the Internet Engineering Task Force (IETF).It represents the consensus of the IETF community.It has received public review and has been approved for publication by the Internet Engineering Steering Group (IESG).Further information on Internet Standards is available in Section 2 of RFC 5741.