Fellow Monks!

In trying to verify a PGP signature and determine the Key ID of the signing key, I have been stumped by the strange format I encountered in reading out that Key ID.

Expecting to find it in the usual hex format, I instead was offered 'key_id' => 'yp▒▒▒▒▒'. To me this is especially confusing as accoring to the docs when creating a signature, you are supposed to enter the Key-ID as an 8- or 16-digit hex number.

Here's a code snippet:

use Crypt::OpenPGP;
...
my $pgp = Crypt::OpenPGP->new;
my($userid,$sigobj) = $pgp->verify(
        Signature       =>      $mailbody,
        Data            =>      $mailbody,
);
unless(defined $userid){
        done(1,"Could not verify signature.");
}
printf("KeyID: 0x%x\nUserID:%s\n",$sigobj->key_id, $userid);

[download]

Output:

Argument "ypM-&M-^W^]M-^UM-\rM-^W" isn't numeric in printf at ./script.pl line 118.
KeyID: 0x0
UserID:Test Key <testkey@example.com>

How can I get the Key-ID in hex? Am I just not seeing it? I would be delighted to be enlightened. :-)

Update/Correction: Input of course would be an 8- or 16-digit hex no., not 10 as I previously wrote.

In reply to Stumped by Crypt::OpenPGP::Signature->key_id by mhi

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