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Feb 6, 2015 at 23:14 comment added AJAr Let's chat about it (chat.stackexchange.com/rooms/20905/…). Getting crowded on the comments here.
Feb 6, 2015 at 23:08 comment added Maros That makes sense. How would this work if I got the user to decrypt a message? Wouldn't I first need to encrypt it in a way that only he can decrypt it as the holder of the secret token? Wouldn't I also need access to that secret token to do the encryption? Sorry, I'm pretty new to GPG.
Feb 6, 2015 at 23:02 comment added AJAr I think the reason why #bitcoin-otc checks GPG the way it does (sig request instead of decryption request) is because sig verification is a much, much faster op than encryption. That said, one is IRC and the other is a website; it can't very easily use a CAPTCHA, but you can to mitigate the risk of DOS attacks.
Feb 6, 2015 at 21:58 comment added AJAr They can't sign with just the public key.
Feb 6, 2015 at 21:57 comment added Maros But isn't it possible for an attacker to grab another user's key and sign the message with that to claim to be that user?
Feb 6, 2015 at 21:42 comment added AJAr Oh, alright. In that case, I think it might be better to have them decrypt a message than encrypt one. The margin for error is a bit lower, plus (depending on your audience) some users may not know how to sign messages even though they know how to encrypt them. A lot of different interfaces out there for PGP.
Feb 6, 2015 at 21:35 comment added Maros It's a typical Rails app. I just made that script for testing purposes.
Feb 6, 2015 at 21:32 comment added AJAr What kind of app are you making, btw? Just curious since at first I thought it was a web app.
Feb 6, 2015 at 21:28 comment added Maros Haha. What a coincidence.
Feb 6, 2015 at 21:25 comment added AJAr Hah, made edits at almost the same time.
Feb 6, 2015 at 21:24 history edited AJAr CC BY-SA 3.0
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Feb 6, 2015 at 21:23 comment added Maros Thanks for your response. This seems like a good solution. Though I've posted an edit with a new idea involving just plain old GPG concepts. Would you mind taking a look and seeing if it's valid?
Feb 6, 2015 at 21:17 history edited AJAr CC BY-SA 3.0
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Feb 6, 2015 at 21:03 history edited AJAr CC BY-SA 3.0
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Feb 6, 2015 at 20:51 history edited AJAr CC BY-SA 3.0
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Feb 6, 2015 at 20:36 history edited AJAr CC BY-SA 3.0
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Feb 6, 2015 at 20:31 history answered AJAr CC BY-SA 3.0