Multimedia Internet KEYing (MIKEY)

MIKEY is a key management scheme used with SIP/SDP and H.323/H.235.


MIKEY was made an RFC in August 2004, and was updated with two new modes in September 2006 and November 2006.

Protocol dependencies

  • SDP: Typically, MIKEY is transported in a key-mgmt attribute in a SDP offer or answer.

Example traffic

XXX - Add example decoded traffic for this protocol here (as plain text or Wireshark screenshot).


The MIKEY dissector is partially functional. There are currently no support for CHASH and ERR payloads, and no support for authentication and decryption.

Preference Settings

  • MIKEY UDP port: UDP port to expect MIKEY traffic on (default 2269).

  • MIKEY TCP port: TCP port to expect MIKEY traffic on (default 2269).

Example capture file

Capture file containing two MIKEY messages: Pre-shared and PSK ver msg. Pre-shared key is "secret".

Display Filter

A complete list of MIKEY display filter fields can be found in the display filter reference

Show only the MIKEY based traffic:


Capture Filter

You cannot directly filter MIKEY protocols while capturing.

External links

  • RFC 3830 MIKEY: Multimedia Internet KEYing.

  • RFC 4650 HMAC-Authenticated Diffie-Hellman

    for Multimedia Internet KEYing (MIKEY)



  • [RFC 4738]( *MIKEY-RSA-R: An Additional Mode of Key Distribution in Multimedia Internet KEYing (MIKEY)*.
  • <> Secure VoIP publications from KTH, Stockholm.
  • Discussion

    Imported from on 2020-08-11 23:16:44 UTC