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Author: Amir Taaki
Date:  
To: unsystem
Subject: Re: [unSYSTEM] Stealth Bitcoin Addresses
some code: https://gist.github.com/jspilman/8396495

On 15/01/14 03:57, Thomas Hartman wrote:
> Awesome if true.
>
> On Jan 14, 2014 5:38 PM, "Amir Taaki" <genjix@???
> <mailto:genjix@riseup.net>> wrote:
>
>     I'm not sure that's true (asked Peter about it):

>
>     <petertodd> stealth addresses are "I give you a chain code, you
>     derive new
>     pubkeys with random 32-byte nonces, and then encrypt that nonce in
>     the tx
>     itself so I can decrypt it and recover the funds"

>
>     if so then combined with CoinJoin this is holy-grail, and we don't
>     need to
>     worry about Twister/XMPP/BitMessage for transmitting secrets around.

>
>     > So sad that you're fed up with me.
>     >
>     > This seems great for fairly anonymous payments.

>     >
>     > My only problem is if the deterministic offset n is encoded in the
>     paying
>     > transaction then anyone else you also gave that mpk to, will also
>     see the
>     > address.

>     >
>     > So I still really prefer some solution where payment addresses are
>     > contracted and signed by a key, for either a one off payment or a
>     sequence
>     > of payments over a period.

>     >
>     > Thanks
>     > Bob
>     > On 14 Jan 2014 00:31, "Nicolás Mendoza" <nicolasmendo@???
>     <mailto:nicolasmendo@gmail.com>> wrote:

>     >
>     >> Thanks for using Drak in your example, I'm fed up with Bob and Alice

>     >>

>     >>
>     >> On Tue, Jan 14, 2014 at 5:29 AM, Amir Taaki <genjix@???
>     <mailto:genjix@riseup.net>> wrote:

>     >>
>     >>> great, thanks for showing me this. I know the basic idea. The only
>     >>> thing
>     >>> I'd add is that once you know the nonce, that the payor doesn't
>     need to
>     >>> recreate these txs repeatedly. So when I pay Drak, I only need to do
>     >>> this the first ever time I pay Drak.

>     >>>
>     >>> On 13/01/14 19:49, Drak wrote:
>     >>> > Have you guys seen this discussion on the bitcoin mailing list
>     (and
>     >>> now
>     >>> > there is a working
>     >>> > implementation):
>     >>> http://sourceforge.net/mailarchive/message.php?msg_id=31813471

>     >>> >
>     >>> > Seems to be a major step forward in terms of privacy. Probably
>     needs
>     >>> a
>     >>> > few more technical eyes on it but it looks really promising.

>     >>> >
>     >>> > Drak

>     >>> >

>     >>> >
>     >>> > _______________________________________________
>     >>> > unSYSTEM mailing list: http://unsystem.net
>     >>> > https://mailinglists.dyne.org/cgi-bin/mailman/listinfo/unsystem

>     >>> >

>     >>>

>     >>>
>     >>> _______________________________________________
>     >>> unSYSTEM mailing list: http://unsystem.net
>     >>> https://mailinglists.dyne.org/cgi-bin/mailman/listinfo/unsystem

>     >>>

>     >>>

>     >>

>     >>
>     >> --
>     >> Nicolas Mendoza

>     >>
>     >> PhD Researcher
>     >> School of Creative Media
>     >> City University of Hong Kong
>     >> China PDR - HKSAR

>     >>

>     >>
>     >> _______________________________________________
>     >> unSYSTEM mailing list: http://unsystem.net
>     >> https://mailinglists.dyne.org/cgi-bin/mailman/listinfo/unsystem

>     >>

>     >>
>     > _______________________________________________
>     > unSYSTEM mailing list: http://unsystem.net
>     > https://mailinglists.dyne.org/cgi-bin/mailman/listinfo/unsystem

>     >

>
>
>     _______________________________________________
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>     https://mailinglists.dyne.org/cgi-bin/mailman/listinfo/unsystem

>
>
>
> _______________________________________________
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>