(registered 2018-07-30, last updated 2018-07-30)

Media type name: application

Media subtype name: vnd.3gpp.mc-signalling-ear

Required parameters: ​N/A

Optional parameters: N/A

Encoding considerations: binary
   N/A

Security considerations: ​An Element for Authenticating Requests 
   (EAR) is used as part of a SIP message to communicate origin 
   authentication to a receiving entity.

   This media type provides a format for exchanging information in a 
   SIP message, so the security considerations from IETF RFC 3261 
   apply.

   The information transported in this media type does not include 
   active or executable content.

   Mechanisms for confidentiality and integrity protection of these
   parameters exist and are described in 3GPP TS 33.180.

   A signature is always applied to an EAR by the transmitting entity.

Interoperability considerations: Element for Authenticated Requests 
   is applicable to 3GPP mission critical compliant applications 
   security as described in
​
   http://www.3gpp.org/ftp/Specs/archive/33_series/33.180/

Published specification:

   http://www.3gpp.org/ftp/Specs/archive/33_series/33.180/
   (specifically clause 9.6.5).​


Applications which use this media: Security of mission critical 
   applications compliant with
   http://www.3gpp.org/ftp/Specs/archive/33_series/33.180/ that 
   support Origin authentication using the Element for Authenticated 
   Request.

Fragment identifier considerations: N/A

Restrictions on usage: none

Provisional registration? (standards tree only): N/A

Additional information:

   1. Deprecated alias names for this type: N/A
   2. Magic number(s): N/A
   3. File extension(s): N/A
   4. Macintosh file type code: N/A
   5. Object Identifiers: N/A

General Comments: N/A

Person to contact for further information:

   1. Name: Tim Woodward
   2. Email: tim.woodward&motorolasolutions.com

Intended usage: Common
   Used to provide Origin authentication information in a SIP MIME 
   body specific to 3GPP mission critical applications.

Author/Change controller: 3GPP SA3 Working group
   email: 3gpp_tsg_sa_wg3&list.etsi.org