what is the HEX signature off a normal *.gpg file . for EmailFilter - BCC Mail protect Quarant
dshaw at jabberwocky.com
Fri Sep 4 19:12:07 CEST 2009
On Sep 4, 2009, at 10:06 AM, Joachim.Blomberg at vr-leasing.de wrote:
> im sending *.gpg Mail-Attachments to external Customers , but our
> EmailFilter - BCC Mail protect Quarantine stopps the and we have to
> release them manual.
> I need the HEX File Siganture for GPG Files to customize that in BCC
> Mail Protect .
This is unfortunately a difficult question. GPG (really, OpenPGP)
supports multiple encodings and thus multiple signatures a file may
present to a mail scanner.
You may be able to match the most common signatures, but by no means
will that cover them all.
Having said that, some common signatures (in "file magic" format) are:
0 beshort 0x9900 text/PGP key public ring
0 beshort 0x9501 text/PGP key security
0 beshort 0x9500 text/PGP key security
0 beshort 0xa600 text/PGP encrypted data
0 string -----BEGIN\040PGP text/PGP armored data
>15 string PUBLIC\040KEY\040BLOCK- public key block
>15 string MESSAGE- message
>15 string SIGNED\040MESSAGE- signed message
>15 string PGP\040SIGNATURE- signature
0 beshort 0x8501 data
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