The "pgDS" file type is a Detached Signature. The correct file extension
for a detached signature is ".sig". These are ASCII files. They do *not*
use the ".asc" extension.
The "pgPR" file type is a Public Keyring file. The correct file extension
for a Public Keyring file is ".pkr". These are always binary files.
".asc" files sometimes contain keys, and sometimes contain encrypted
and/or signed data -- always in ASCII format. These files have no special
Macintosh file type. The file type for these is the standard "TEXT".
The "pgRR" file type is a Secret Keyring file. The correct file extension
for a Secret Keyring file is ".skr". These are always binary files.
The "pgEF" file type is a PGP encrypted and/or signed file. The correct
file extension for such a file is ".pgp". These are usually binary files,
but not always.
Florian Weimer wrote:
Excerpt from the current OpenPGP/MIME draft:
| 9.2. Registration of the application/pgp-signature media type
| Encoding considerations:
|
| The content of this media type always consists of 7bit text.
| Additional information:
|
| Magic number(s): none
| File extension(s): asc
| Macintosh File Type Code(s): pgDS
| 9.3. Registration of the application/pgp-keys media type
| Encoding considerations:
|
| The content of this media type always consists of 7bit text.
| Additional information:
|
| Magic number(s): none
| File extension(s): asc
| Macintosh File Type Code(s): pgPR
Doesn't Macintosh PGP (and perhaps other programs as well) store
binary data in pgDS/pgPR files as well? That's why I don't think the
MIME types and Macintosh file types are equivalent.
--
Will Price, Director of Engineering
PGP Security, Inc.
a division of Network Associates, Inc.