Re: [Bitcoin-development] Blockchain as root CA for payment protocol

2013-02-11 Thread Rick Wesson
I prefer to leverage the signing of the (.) root in the DNS tree. The amount of effort in signing the root holds more weight than building a CA off the bitcoin blockchain. If you want to associate identifiers for payment addresses I suggest putting those in DNSSEC signed records in the DNS. For r

Re: [Bitcoin-development] Blockchain as root CA for payment protocol

2013-02-11 Thread Gregory Maxwell
On Mon, Feb 11, 2013 at 11:12 AM, Timo Hanke wrote: > It's not about technical differences, but about the different use or > purpose, which can result in different security demands. I argue that > DNS has a lower demand in this respect than payment ids have. So DNS > data can be in a chain with a

Re: [Bitcoin-development] Blockchain as root CA for payment protocol

2013-02-11 Thread Timo Hanke
On Sat, Feb 09, 2013 at 07:01:48PM +, Luke-Jr wrote: > On Saturday, February 09, 2013 2:33:25 PM Timo Hanke wrote: > > namcoin tries to solve a different problem, DNS, whereas I want > > to establish an identity for a payment protocol. > > What is the technical difference here? Namecoin ties n

Re: [Bitcoin-development] Blockchain as root CA for payment protocol

2013-02-11 Thread Peter Todd
On Sat, Feb 09, 2013 at 03:33:25PM +0100, Timo Hanke wrote: > > Why don't you use namecoin or another alt-chain for this? > > Because namcoin tries to solve a different problem, DNS, whereas I want > to establish an identity for a payment protocol. Your incoming payments > will land on addresses t

Re: [Bitcoin-development] Blockchain as root CA for payment protocol

2013-02-09 Thread Luke-Jr
On Saturday, February 09, 2013 2:33:25 PM Timo Hanke wrote: > > Why don't you use namecoin or another alt-chain for this? > > Because namcoin tries to solve a different problem, DNS, whereas I want > to establish an identity for a payment protocol. What is the technical difference here? Namecoin

Re: [Bitcoin-development] Blockchain as root CA for payment protocol

2013-02-09 Thread Timo Hanke
On Fri, Feb 08, 2013 at 06:01:08AM -0500, Peter Todd wrote: > On Fri, Feb 08, 2013 at 11:03:54AM +0100, Timo Hanke wrote: > > First, we have drafted a quite general specification for bitcoin > > certificates (protobuf messages) that allow for a variety of payment > > protocols (e.g. static as wel

Re: [Bitcoin-development] Blockchain as root CA for payment protocol

2013-02-08 Thread Peter Todd
On Fri, Feb 08, 2013 at 11:03:54AM +0100, Timo Hanke wrote: > First, we have drafted a quite general specification for bitcoin certificates > (protobuf messages) that allow for a variety of payment protocols (e.g. > static as well as customer-side-generated payment addresses). > This part has sur

[Bitcoin-development] Blockchain as root CA for payment protocol

2013-02-08 Thread Timo Hanke
There have been proposals to use the blockchain to establish "identities". firstbits is a simple example. I would like to announce a project that extends this idea to turn the blockchain into a "root CA" that can sign arbitrary certificates. The purpose is to use these certificates in the payment p