I wonder…


English: Public key encryption diagram: email ...

Image via Wikipedia

Enigmail OpenPGP Pulldown menu in Thunderbird ...
Image via Wikipedia

I’ve come to realize, since I’m using the post by email feature more and more these days. Except for this post. 😉 Because I’m at the same time trying out the Zemanta plugin for wordpress!

Now what I wonder about is the following: When I send a new post (always in draft status) by email, I always sign my outgoing email with my gnupg signature key.

The result of sending email in this fashion always leads to the following ‘error’:

  • Please note that some attachments were rejected for the following reasons:
    1. – 0xEA07CB69.asc – Invalid file type
    2. – signature.asc – Invalid file type

Why Johnny can’t encrypt.

Now there are plenty of reasons I can understand wordpress’ limits on certain file types. But the reason I’m bringing this up, instead of contacting support (I might want to do so at a time of more convenience to me!?) directly, is not that. It’s much simpler: How can one possibly verify what I wrote and send to wordpress.com really comes from me … *clock is ticking* …. *times up* Well one signs it. 😉

Truth be told though, anyone can create a public/private key-pair and claim it as his or hers. An example of that can be found here. 😉 The true strength of cryptography lies in the user based trust in those keys. E.g. if 10 people can verify that my key really belongs to me, because I went to: e.g. a key-signing party, then one can be assured of one thing and one thing alone. The message/post that I send from my email client really comes from me and no way in hell has anyone been able to temper with it, though I must note the message still can be read, while in transit. And why should it not be! After all you guys and gals can read the result here. 😉

Optionally I could encrypt my message to you as well. But as I pointed out above, that would be kind of silly to do so. 😆 It does serve to proof a point here.

## I've encrypted the above text up until: ... read the result here.
## This would include the used smiley and the div container.
## pass: 123456789
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9jBPbDvvQNdFOsJjBPXKHzgFez5s/s0j2S5X6jgrSIU=
How?
openssl aes-256-cbc -a -e -salt -in "sometext" -out "sometext".aes

That’s all folks…

Kindest regards,

Alex

PS: Comments allowed (those (if any) will be {monitored,moderated} by yours truly) && these will have to relate to what I might call “state-related” to the subject at hand!

On a side note: While I do appreciate people who tell me they liked what I wrote about or how they have followed my blog for a while. The best way IMO to show Your appreciation is by simply clicking ‘like‘ on my post(s) (and share them with… ), or just follow my blog instead. 😉

There are three rules for writing a novel. Unfortunately, no one knows what they are.
W. Somerset Maugham