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Hash: SHA1
What if you also run |gpg -o temp.txt, then cat temp.txt and compare.
(temp.txt should only get the message not the signature, so if the
signature's in there too, then it's a spoof.)
Cheers,
Erin
Jeff Abrahamson wrote:
| I received an encrypted and signed email which I decrypt and verify by
| piping through gpg (no options). The output looked like below (the
| part indented by two spaces).
|
| In mutt, I type "|gpg<return>"
|
| Now, I don't suspect Erin was trying to spoof me, and she had enclosed
| a semi-random string that I had encrypted to her. So this one case
| doesn't bother me.
|
| But, in general, how can I distinguish between the end of the
| encrypted message and the beginning of the "gpg: Signature ..." stuff?
| Couldn't someone just include such a (forged) signature block at the
| end of their message, then encrypt the whole thing without signing,
| and so convince me that the message was signed by someone else?
|
| You need a passphrase to unlock the secret key for
| user: "Jeff Abrahamson <jeff@purple.com>"
| 2048-bit ELG-E key, ID 29595FCD, created 2002-05-02 (main key ID
0D1DAE4B)
|
| gpg: encrypted with 2048-bit ELG-E key, ID ADD31B0A, created 2003-08-28
| "Erin Mulder <meara@alumni.princeton.edu>"
| gpg: encrypted with 2048-bit ELG-E key, ID 29595FCD, created 2002-05-02
| "Jeff Abrahamson <jeff@purple.com>"
| Hi Jeff,
|
| It was great meeting you all. Thanks for signing my key.
|
| Cheers,
| Erin
|
| Jeff Abrahamson wrote:
| > Hi, Erin.
| >
| > Could you please respond to this message, signed and encrypted, so
| > that I know you are who you say you are?
| >
| > Here's a semi-random string to include in your response:
| >
| > 153758709bcbdfc23f745c0b4656939632cfb6df
| >
| > Thanks.
| >
| gpg: Signature made Thu 04 Sep 2003 12:15:32 AM EDT using DSA key ID
A54DA2DF
| gpg: Good signature from "Erin Mulder <meara@alumni.princeton.edu>"
| gpg: WARNING: This key is not certified with a trusted signature!
| gpg: There is no indication that the signature belongs to
the owner.
| Primary key fingerprint: 8609 5F8C E335 F93F 40CC 14B8 10FA 4C88
A54D A2DF
|
|
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.2.1 (GNU/Linux)
Comment: Using GnuPG with Thunderbird - http://enigmail.mozdev.org
iD8DBQE/V0GGEPpMiKVNot8RAjz6AKCYcnD/raL6J+ovny2dkPuwRaI5vQCcDPKC
kEBNJ3OGZ8EqIV6sxIxAubs=
=9YVl
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