Technical Summary
This document defines the use of the ARIA block cipher algorithm
within the Secure Real-time Transport Protocol (SRTP). It details
two modes of operation (CTR, GCM) and a SRTP Key Derivation Function
for ARIA. Additionally, this document defines DTLS-SRTP protection
profiles and MIKEY parameter sets for the use with ARIA.
ARIA is a Korean standard block cipher algorithm that has been
widely used in Korea, especially for government-to-public services.
Working Group Summary
The primarily thing to note has been the limited interest
in this work. However, since the draft registers DTLS-SRTP
and MIKEY codepoints for a widely used algorithm, the
AVTCORE group adopted the milestone.
Document Quality
The document has been reviewed by a small group of
persons beyond the authors themselves. The document
received feedback from Dan Wing and John Mattson from
a security perspective. Colin Perkins, Jonathan Lennox,
and the shepherd have reviewed it from an RTP perspective.
There exist a number of implementations of the ARIA cipher in SRTP.
Some are certified by Telecommunications Technology Association of Korea:
http://test.tta.or.kr/research/result/index.jsp?team_cd=N&pageNum=2
And looking at specific products like:
http://test.tta.or.kr/research/result/network.jsp?team_cd=N&num=987http://test.tta.or.kr/research/result/network.jsp?team_cd=N&num=971
One can see (using Google translate) that they are listed as supporting ARIA.
Shepherd notes that this likely means that the cipher and one form of
key-management has been implemented.