Media Type 'image/vnd.sealed.png' Details

Media Type 'image/vnd.sealed.png' Details

Basic Info
Media Type image
subtype vnd.sealed.png
Registered? Yes
See also Petersen

Tags: (none)

File Formats: (none)


(last updated 2003-10-02)

Name : David Petersen

Email : [email protected]

MIME media type name : Image

MIME subtype name : Vendor Tree - vnd.sealed.png

Required parameters : None

Optional parameters : None

Encoding considerations : Binary

Security considerations : 
These files are intended to be read by a proprietary client (the "Unsealer") 
which makes the unencrypted content available in a very limited fashion to a 
user's system. As the data format is private and encrypted using well-known 
algorithms, it is unlikely that the data could be spoofed. The client is also 
designed to refuse to work with data that is corrupt or ill-formed. This data 
does not contain any executable material.

Interoperability considerations : 
This mime-type is valid for Windows systems only.

Published specification : 
The specifications for this content-type are proprietary. They are specified by 
Sealed Media. The registration of this content-type is intended only to provide 
a convention for labeling this proprietary data type within the MIME/HTTP environment 
and does not specify any details about the content format or semantics, except to refer 
to the software and specifications provided by Sealed Media. Company information may be 
obtained at

Applications which use this media : 
This mime-type is intended for use only by the client software, "Unsealer", created 
by Sealed Media.

Additional information :

1. Magic number(s) : None
2. File extension(s) : .spng, .spn, .s1n
3. Macintosh file type code : None
4. Object Identifiers: None

Person to contact for further information :

1. Name : Martin Lambert
2. Email : [email protected]

Intended usage : Common 
Author/Change controller :

Martin Lambert
[email protected]  

(created 2003-09-09)