Using GPG to sign and verify a message

First off GPG stands for GNU Privacy Guard, and is a open source implementation of PGP.

So what can you do with GPG, and why should we care?

One common use of is to sign your messages, this way the receiver can verify
it did in fact come from you, and that it hasn’t been altered.

-----BEGIN PGP PUBLIC KEY BLOCK-----
Version: SKS 1.1.4
Comment: Hostname: keyserver.ubuntu.com

mQENBFJgLEgBCADcYnqxjoWIUoaRQEdvyIKu0g2UkTRRUidpkLhqqLCMmP4EQgB9EosoTUVn
NiLyXrqpSUvD5RkOtzj4rHIn2trSey9D7pu++5u1x0hGTIaCxcbQMK6l+MhqwLdPshyEvTv/
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DtK57lyAxrc+EY7385PPHhd0Lf5tRufsPce/Q2s/ItQTaYBKXWq0s5sFhg==
=pePB
-----END PGP PUBLIC KEY BLOCK-----

Using the above public key we can verify a signed message I wrote.

For example below is a message I signed with the text “Here is a signed message from me!”.

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA512

Here is a signed message from me!

-----BEGIN PGP SIGNATURE-----
Version: GnuPG/MacGPG2 v2.0.22 (Darwin)
Comment: GPGTools - https://gpgtools.org

iQEcBAEBCgAGBQJS67emAAoJEBWBnFv4DSwoFmAH/2FNYG8JODEYvWna3kGYDHZ3
I1Td5fGxLc2vcpiRyiZJ9RATByV6sact+ITHduj7TPTDo/zrDDnoqDnAt59kZhAn
WxPbQyQXW49tnWPrJ+QjMV3J55oZWCe28hfeCDdiVslCYtxwXw+zL2g2u3sp5ndk
aJIR7PRhJoAWDt0JhYY2JDT7xKgDXtvD73MrgIJpolWiSF24oDj93rn8YO7bG2KI
oatbUN5yObQBog4IxgWagGBmvzt4gE4dTIJjdBSMmM5p1ldFpEKBdhlQ4BUVTCvU
QMQ4bxG3z+Pz3lbY5FuW97GtFgpe1BEVBxcDZU92njO6mAK4PJn6M5B8dMP4Z1I=
=/p36
-----END PGP SIGNATURE-----

To verify this message we can use GPG’s –verify option:

$ gpg --verify
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA512

Here is a signed message from me!

-----BEGIN PGP SIGNATURE-----
Version: GnuPG/MacGPG2 v2.0.22 (Darwin)
Comment: GPGTools - https://gpgtools.org

iQEcBAEBCgAGBQJS67emAAoJEBWBnFv4DSwoFmAH/2FNYG8JODEYvWna3kGYDHZ3
I1Td5fGxLc2vcpiRyiZJ9RATByV6sact+ITHduj7TPTDo/zrDDnoqDnAt59kZhAn
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oatbUN5yObQBog4IxgWagGBmvzt4gE4dTIJjdBSMmM5p1ldFpEKBdhlQ4BUVTCvU
QMQ4bxG3z+Pz3lbY5FuW97GtFgpe1BEVBxcDZU92njO6mAK4PJn6M5B8dMP4Z1I=
=/p36
-----END PGP SIGNATURE-----
gpg: Signature made Fri Jan 31 08:48:06 2014 CST using RSA key ID F80D2C28
gpg: Good signature from "nessy <..@gmail.com>"
gpg:                 aka "nessy <..@flip-edesign.com>"

As seen above the, the signature states Good signature, and shows when it was signed.

Boardgame Geek API

Today I learned Boardgamegeek.com provides a XML API which appears to be pretty well documented.

For example if I wanted to list all the Board Games I own I could do something like this in python:

In [1]: from urllib2 import urlopen

In [2]: from lxml import etree

In [3]: req = urlopen('http://www.boardgamegeek.com/xmlapi/collection/flip387')

In [4]: xml = etree.parse(req)

In [5]: sorted([ i.text for i in xml.xpath('//name') ])
Out[5]:
['Arkham Horror',
 'Bears!',
 'Castle Panic',
 'Clue',
 'Cranium',
 'Dominion',
 'Dungeon!',
 'Dungeons & Dragons: Wrath of Ashardalon Board Game',
 'Elder Sign',
 'Legendary: A Marvel Deck Building Game',
 'Legendary: Dark City',
 'Monopoly',
 'Munchkin',
 'Munchkin Pathfinder',
 'Once Upon a Time: The Storytelling Card Game',
 'Pandemic',
 'Pathfinder Adventure Card Game: Rise of the Runelords - Base Set',
 'Risk',
 'Scrabble',
 'Small World',
 'Star Wars: X-Wing Miniatures Game',
 'Talisman (Revised 4th Edition)',
 'The Settlers of Catan',
 'Ticket to Ride',
 'Zombie Dice']

Meet Skelly

Over the weekend I did something I haven’t done in a long time, draw.
One of the drawings I ended up liking was a cartoon skeleton, now named Skelly.
Below you can see a image of the original hand drawn art.

Photo Jan 19, 9 53 12 AM

And lastly we have it imported in Illustrator and traced,
I rather like how he ended up.

Photo Jan 19, 9 53 16 AM