From: Gregory Maxwell <gmaxwell@gmail•com>
To: Tom Harding <tomh@thinlink•com>
Cc: Bitcoin Development <bitcoin-development@lists•sourceforge.net>
Subject: Re: [Bitcoin-development] Address Expiration to Prevent Reuse
Date: Thu, 26 Mar 2015 20:42:55 +0000 [thread overview]
Message-ID: <CAAS2fgSSOQi4uL95S=GUdXGKZK_y4aNTUoOqkkaLFvzAVPnRig@mail.gmail.com> (raw)
In-Reply-To: <55146E2C.9020105@thinlink.com>
On Thu, Mar 26, 2015 at 8:38 PM, Tom Harding <tomh@thinlink•com> wrote:
> I addressed that by limiting the duplicate check to an X-block segment. X
> is hard-coded in this simple scheme (X=144 => "1-day addresses"). You
> could picture a selectable expiration duration too.
If its to be heuristic in any case why not make it a client feature
instead of a consensus rule?
If someone wants to bypass anything they always can, thats what I mean
by "hide their payment under a rock"
E.g. I can take your pubkey, add G to it (adding 1 to the private
key), strip off the time limits, and send the funds.
"What do you mean I didn't pay you? I wrote a check. locked it in a
safe, and burred it in your back garden."
The answer to this can only be that payment is only tendered when its
made _exactly_ to the payee's specifications.
If someone violates the specifications all they're doing is destroying
coins. Nothing can stop people from destroying coins...
Which is why a simpler, safer, client enforced behavior is probably
preferable. Someone who wants to go hack their client to make a
payment that isn't according to the payee will have to live with the
results, esp. as we can't prevent that in a strong sense.
next prev parent reply other threads:[~2015-03-26 20:43 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-03-25 1:57 Tom Harding
2015-03-25 10:09 ` Matt Whitlock
2015-03-25 16:34 ` Gregory Maxwell
2015-03-25 18:44 ` Tom Harding
2015-03-25 19:22 ` Gregory Maxwell
2015-03-26 20:38 ` Tom Harding
2015-03-26 20:42 ` Gregory Maxwell [this message]
2015-03-26 21:26 ` Tom Harding
2015-03-26 21:33 ` Peter Todd
2015-03-26 21:44 ` Gregory Maxwell
2015-03-26 22:23 ` Tom Harding
2015-03-26 22:28 ` s7r
2015-03-26 23:00 ` Gregory Maxwell
2015-06-13 4:52 ` odinn
2015-03-27 1:51 Thy Shizzle
2015-03-27 3:13 ` Gregory Maxwell
2015-03-27 4:31 Thy Shizzle
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