PGP and S/MIME Keys

PGP / GPG (Preferred method of contact)

Short Id: E8444136
Fingerprint: EDD2 E391 22DC BEDE EBC2 99B4 64FC 35DC E844 4136

You can find my PGP key on the following key servers:

When possible, my email clients advertise my PGP key via. the “OpenPGP” email header defined in this draft IETF proposal. E.g.,

OpenPGP: id=E8444136; url=

S/MIME, Issued by Comodo (Alternate method of contact. Please use PGP/GPG if possible):

Serial Number: 009FEDEADCF5EE088691FD08C05ABCD1C4
SHA1 Fingerprint: 5582 805D 2141 3C35 7CEE CF24 B881 C39D 3AD1 CEB9

Public Key (.PEM) [download]
Public Key (.CER) [download]

Key Fingerprints:

NOTE: I’ve signed the above image (key_fingerprints.png) with both my PGP and my S/MIME keys. This asserts that I was in possession of both the matching private keys when I generated the image. As a by-product, it also links the PGP and S/MIME keys together, similar to how GPG uses a primary key to sign subkeys in order to assert that they belong to the same individual.

Here is the image’s PGP signature: [download]
Verify by downloading the image (right-click, Save Link As), adding my pgp key to your keyring, and running:
$gpg --verify key_fingerprints.png.asc

Here is the image’s X509 (S/MIME) signature: [download]
Verify by downloading the image (right-click, Save Link As) and my S/MIME .PEM certificate, then running:
$openssl x509 -in adam.fourney\ -pubkey -noout | openssl dgst -sha256 -verify /dev/stdin -signature key_fingerprints.png.sig key_fingerprints.png