[media-types] [IANA #1445698] application/vnd.vnd.ma jikah.bundle registration request

Hi Alexey,

Resending this one from March 7th.

thanks,
Amanda

On Sat Mar 07 03:34:14 2026, sabrina.tanamal wrote:
> Hi Alexey,
> 
> Could you review this one for us by March 20th?
> 
> Thank you,
> Sabrina
> 
> ====
> 
> Name: Josef Elijah Delos Santos Fabian
> 
> Email: [email protected]
> 
> Media type name: application
> 
> Media subtype name: vnd.vnd.majikah.bundle
> 
> Required parameters: N/A
> 
> Optional parameters: N/A
> 
> Encoding considerations: binary
> 
> MJKB files are binary containers containing encrypted and compressed
> data.
> 
> Security considerations: MJKB files may contain encrypted binary
> payloads including user-generated content.
> Applications processing MJKB files should validate file structure
> before parsing
> to avoid memory corruption vulnerabilities.
> 
> MJKB containers may contain arbitrary data and should be treated as
> untrusted input.
> 
> If the format includes encrypted payloads, implementations must ensure
> that
> cryptographic keys are handled securely and not exposed through
> metadata or logs.
> 
> MJKB files may be large and should be processed using streaming where
> possible
> to avoid denial-of-service conditions due to memory exhaustion.
> 
> Interoperability considerations: MJKB is designed as a self-contained
> binary container format for secure file
> transport and storage. Interoperability depends on correct
> implementation
> of the container specification including header parsing, compression,
> and cryptographic envelope handling.
> 
> Implementations should follow the official MJKB specification to
> ensure
> compatibility across platforms.
> 
> Published specification: https://github.com/Majikah/majik-
> file/blob/main/MJKB_SPEC.md
> 
> Applications which use this media: Majik Message Desktop
> Majik Message Web
> Majikah Ecosystem
> 
> Fragment identifier considerations: N/A
> 
> Restrictions on usage: N/A
> 
> Provisional registration? (standards tree only): No
> 
> Additional information:
> 
> 1. Deprecated alias names for this type: N/A
> 2. Magic number(s): 4D 4A 4B 42
> 3. File extension(s): .mjkb
> 4. Macintosh file type code: N/A
> 5. Object Identifiers: N/A
> 
> General Comments:
> 
> Person to contact for further information:
> 
> 1. Name: Josef Elijah Fabian
> 2. Email: [email protected]
> 
> Intended usage: COMMON
> 
> 
> 
> Author/Change controller: Majikah Information Technology Solutions

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