Return-Path: Received: from smtp1.linuxfoundation.org (smtp1.linux-foundation.org [172.17.192.35]) by mail.linuxfoundation.org (Postfix) with ESMTPS id 307D8120A for ; Fri, 11 Sep 2015 15:13:20 +0000 (UTC) X-Greylist: whitelisted by SQLgrey-1.7.6 Received: from mail-ob0-f175.google.com (mail-ob0-f175.google.com [209.85.214.175]) by smtp1.linuxfoundation.org (Postfix) with ESMTPS id 213CF1AD for ; Fri, 11 Sep 2015 15:13:19 +0000 (UTC) Received: by obbda8 with SMTP id da8so62715151obb.1 for ; Fri, 11 Sep 2015 08:13:18 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type; bh=TbR7+7WGi5VGkoxwmzNiwwX/v5xJVcToASidCE7akkk=; b=bcxKcpeuZkFrRGKgImucUY1JQvjf2onnko4D7F3IVZ5fw7M/e0FK9NOcqAm+ILIJtz HdjYJskM34MPFYc7yhcFBCLUvumfZa1YyDCGgJguJ4RspJsNcZLRIfJmzVEL/7JZHc5H jFOLdas75QLaCDSX6GOi0qIJGzV8B3A+GlH8A3zo9lviXFCIk0tiRwTMs/1qpikQs/nZ R5uqyMpM5qBLEmjARUiL6EK3yr4+CsztlNq+LMV/w5T5ebRJkD/OLZbobh8PUXikUJWp 7hayjgvTGKSWDMtB7nTIXJsABGXnVwairGqr+0ckk1XzdzldH/QXx4v18/v9e89IruB9 Ii5Q== MIME-Version: 1.0 X-Received: by 10.182.120.72 with SMTP id la8mr37599144obb.7.1441984398564; Fri, 11 Sep 2015 08:13:18 -0700 (PDT) Received: by 10.202.183.215 with HTTP; Fri, 11 Sep 2015 08:13:18 -0700 (PDT) In-Reply-To: References: Date: Fri, 11 Sep 2015 11:13:18 -0400 Message-ID: From: Kristov Atlas To: Mark Friedenbach Content-Type: multipart/alternative; boundary=089e013a0778d9235f051f7a27ef X-Spam-Status: No, score=-2.7 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FROM,HTML_MESSAGE,RCVD_IN_DNSWL_LOW autolearn=ham version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on smtp1.linux-foundation.org Cc: bitcoin-dev@lists.linuxfoundation.org Subject: Re: [bitcoin-dev] Named Bitcoin Addresses X-BeenThere: bitcoin-dev@lists.linuxfoundation.org X-Mailman-Version: 2.1.12 Precedence: list List-Id: Bitcoin Development Discussion List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 11 Sep 2015 15:13:20 -0000 --089e013a0778d9235f051f7a27ef Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable I applaud your brainstorming efforts! :) But I dislike just about everything about this proposal. Bitcoin addresses should never be reused, for privacy and security reasons documented extensively online. I definitely do not want my computer to maintain a registry of every address in the world any more than I want to maintain a list of all email addresses, web addresses, etc. This cannot be scaled and is wasteful since most participants in the network don't need to transact. If we need naming conventions, I'd rather see a name registry system off-chain attached to bip47 reusable payment codes. -Kr On Sep 10, 2015 5:32 PM, "Mark Friedenbach via bitcoin-dev" < bitcoin-dev@lists.linuxfoundation.org> wrote: > Are you aware of the payment protocol? > On Sep 10, 2015 2:12 PM, "essofluffy . via bitcoin-dev" < > bitcoin-dev@lists.linuxfoundation.org> wrote: > >> Hi Everyone, >> >> An issue I'm sure everyone here is familiar with is the problem >> concerning the fact that Bitcoin addresses are too complex to memorize a= nd >> share. Current Bitcoin addresses can be very intimidating to new users. = As >> Bitcoin grows it's necessary to provide a much more user friendly >> experience to the end user. I think that having the capability to assign= a >> unique name to a Bitcoin address is in the best interest of Bitcoin and >> it's users. >> I've recently come up with a method for assigning a unique name to a >> specific Bitcoin address. I'm looking to get some feedback/criticism on >> this method that I have detailed below. >> >> Let=E2=80=99s run through Bob and Alice transacting with a Named Bitcoin= Address. >> Bob wants to collect a payment from Alice for a service/good he is >> selling, but Alice wants to pay from her home computer where she securel= y >> keeps all her Bitcoin. So now Bob needs to give Alice his Bitcoin addres= s >> and because Bob is using a Named Bitcoin Address and a supported wallet = he >> can give her an easy to memorize and hard to mess up address. Bob=E2=80= =99s address >> is simply =E2=80=98SendBitcoinsToBob=E2=80=99 which can easily be writte= n down or >> memorized. Now Alice can go home send the Bitcoin from her own supported >> wallet and be positive that she sent it to Bob. >> >> Let=E2=80=99s look at how Bob=E2=80=99s supported wallet made that addre= ss. >> >> First Bob let=E2=80=99s his wallet know that he wants to create a new ad= dress. In >> response, his wallet simply asks him what he wants that address to be >> named. Bob then enters =E2=80=98SendBitcoinsToBob=E2=80=99 as his prefer= red address name. >> The wallet then let=E2=80=99s Bob know if his preferred address name is = available. >> If it=E2=80=99s available the name is broadcasted to the network and rea= dy to use. >> >> Now let=E2=80=99s get a little more technical. >> >> When Bob inputs his preferred address name the client has to make sure >> this name hasn=E2=80=99t been taken or else who knows where Alice will b= e sending >> her Bitcoins. The client does this by referencing a downloaded =E2=80=9C= directory=E2=80=9D >> of names chosen by people using this system. This directory of names are >> transactions sent to an address without a private key (but still viewabl= e >> on the blockchain) with the name appended to the transactions as an >> OP_RETURN output. These transactions are downloaded or indexed, dependin= g >> on whether or not the wallet contains the full Blockchain or is an SPV >> wallet. Because of such a large amount of possible address names a binar= y >> search method is used to search through all this data efficiently. The >> names could be sorted in two ways, the first being the first character a= nd >> the second being the total length of the name (I will being exploring >> additional methods to make this process more efficient). So now that Bob= =E2=80=99s >> client has verified that the name has not been taken and is valid (valid >> meaning it's under 35 bytes long and only using chars 0-9 and a-z) it se= nds >> a transaction of 1 satoshi and a small fee to the address without a priv= ate >> key as talked about earlier. The transaction's OP_RETURN output consists= of >> two parts. The implementation version of this method (up to 8 characters= ) >> and the name itself (up to 32 characters). Once the transaction is >> broadcasted to the network and confirmed the name is ready to be used. >> >> Let=E2=80=99s look at how Alice=E2=80=99s supported wallet sends her Bit= coin to Bob=E2=80=99s >> Named Bitcoin Address. >> >> When Alice enters in Bob=E2=80=99s address, =E2=80=98SendBitcoinsToBob= =E2=80=99 Alice=E2=80=99s client >> references the same =E2=80=9Cdirectory=E2=80=9D as Bob only on her devic= e and searches for >> the OP_RETURN output of =E2=80=98SendBitcoinsToBob=E2=80=99 using a very= similar binary >> search method as used for the verification of the availability of an >> address name. If a name isn=E2=80=99t found the client would simply retu= rn an >> error. If the name is found then the client will pull the information of >> that transaction and use the address it was sent from as the address to >> send the Bitcoin to. >> >> Essentially what this idea describes is a method to assign a name to a >> Bitcoin address in a way that is completely verifiable and independent o= f a >> third party. >> >> Please ask your questions and provide feedback. >> >> - Devin >> >> >> _______________________________________________ >> bitcoin-dev mailing list >> bitcoin-dev@lists.linuxfoundation.org >> https://lists.linuxfoundation.org/mailman/listinfo/bitcoin-dev >> >> > _______________________________________________ > bitcoin-dev mailing list > bitcoin-dev@lists.linuxfoundation.org > https://lists.linuxfoundation.org/mailman/listinfo/bitcoin-dev > > --089e013a0778d9235f051f7a27ef Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable

I applaud your brainstorming efforts! :) Bu= t I dislike just about everything about this proposal.

Bitcoin addresses should never be reused, for privacy and se= curity reasons documented extensively online.

I definitely do not want my computer to maintain a registry = of every address in the world any more than I want to maintain a list of al= l email addresses, web addresses, etc. This cannot be scaled and is wastefu= l since most participants in the network don't need to transact.

If we need naming conventions, I'd rather see a name reg= istry system off-chain attached to bip47 reusable payment codes.

-Kr

On Sep 10, 2015 5:32 PM, "Mark Friedenbach = via bitcoin-dev" <bitcoin-dev@lists.linuxfoundation.org> wro= te:

A= re you aware of the payment protocol?

On Sep 10, 2015 2:12 PM, "essofluffy . via = bitcoin-dev" <bitcoin-dev@lists.linuxfoundation.org> wrote:<= br type=3D"attribution">
Hi Everyone,=C2=A0=

An issue I'm sure everyone here is famil= iar with is the problem concerning the fact that=C2=A0Bitcoin addresses are= too complex=C2=A0to memorize and share. Current Bitcoin addresses can be v= ery intimidating to new users. As Bitcoin grows it's necessary to provi= de a much more user friendly experience to the end user. I think that havin= g the capability to assign a unique=C2=A0name to a Bitcoin address is in th= e best interest of Bitcoin and it's users.
= I'= ;ve recently come up with a method for assigning a unique name to a specifi= c Bitcoin address. I'm looking to get some feedback/criticism on this m= ethod that I have detailed below.
=
Let=E2=80=99s run through Bob and Alice transacting with a=C2=A0Named Bit= coin Address.
Bob wants to collect a payment from Alice = for a service/good he is selling, but Alice wants to pay from her home comp= uter where she securely keeps all her Bitcoin. So now Bob needs to give Ali= ce his Bitcoin address and because Bob is using a Named Bitcoin Address and= a=C2=A0supported wallet he can give her an easy to memorize and hard to me= ss up address. Bob=E2=80=99s address is simply =E2=80=98SendBitcoinsToBob= =E2=80=99 which can easily be written down or memorized. Now Alice can go h= ome send the Bitcoin from her own supported wallet and be positive that she= sent it to Bob.

Let=E2=80=99s l= ook at how Bob=E2=80=99s supported wallet made that address.<= /div>

First Bob let=E2=80=99s his wallet know that h= e wants to create a new address. In response, his wallet simply asks him wh= at he wants that address to be named. Bob then enters =E2=80=98SendBitcoins= ToBob=E2=80=99 as his preferred address name. The wallet then let=E2=80=99s= Bob know if his preferred address name is available. If it=E2=80=99s avail= able the name is broadcasted to the network and ready to use.=

Now let=E2=80=99s get a little more technical= .

When Bob inputs his preferred = address name the client has to make sure this name hasn=E2=80=99t been take= n or else who knows where Alice will be sending her Bitcoins. The client do= es this by referencing a downloaded =E2=80=9Cdirectory=E2=80=9D of names ch= osen by people using this system. This directory of names are transactions = sent to an address without a private key (but still viewable on the blockch= ain) with the name appended to the transactions as an OP_RETURN output. The= se transactions=C2=A0are=C2=A0downloaded or indexed, depending on whether o= r not the wallet contains the full Blockchain or is an SPV wallet. Because = of such a large amount of possible address names a binary search method is = used to search through all this data efficiently. The names could be sorted= in two ways, the first being the first character and the second being the = total length of the name (I will being exploring additional methods to make= this process more efficient). So now that Bob=E2=80=99s client has verifie= d that the name has not been taken and is valid (valid meaning it's und= er 35 bytes long and only using chars 0-9 and a-z) it sends a transaction o= f 1 satoshi=C2=A0and a small fee to the address without a private key as ta= lked about earlier. The transaction's=C2=A0OP_RETURN output=C2=A0consis= ts=C2=A0of two parts. The implementation version of this method=C2=A0(up to= 8=C2=A0characters) and the name itself (up to 32=C2=A0characters). Once th= e transaction is broadcasted to the network and confirmed the name is=C2=A0= ready to be used.

Let=E2=80=99s = look at how Alice=E2=80=99s supported wallet sends her Bitcoin to Bob=E2=80= =99s Named Bitcoin Address.=C2=A0
=
When Alice enters in Bob=E2=80=99s address, =E2=80=98SendBitcoinsToBob=E2= =80=99 Alice=E2=80=99s client references the same =E2=80=9Cdirectory=E2=80= =9D as Bob only on her device and searches for the OP_RETURN output of =E2= =80=98SendBitcoinsToBob=E2=80=99 using a very similar binary search method = as used for the verification of the availability of an address name. If a n= ame isn=E2=80=99t found the client would simply return an error. If the nam= e is found then the client will pull the information of that transaction an= d use the address it was sent from as the address to send the Bitcoin to.

Essentially what this idea=C2=A0d= escribes=C2=A0is a method to assign a name to a Bitcoin address in a way th= at is completely verifiable and independent of a third party.=

Please ask your questions and provide feedbac= k.

- Devin
= =C2=A0

_______________________________________________
bitcoin-dev mailing list
= bitcoin-dev@lists.linuxfoundation.org
https://lists.linuxfoundation.org/mail= man/listinfo/bitcoin-dev


_______________________________________________
bitcoin-dev mailing list
= bitcoin-dev@lists.linuxfoundation.org
https://lists.linuxfoundation.org/mail= man/listinfo/bitcoin-dev

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