Re: [Bitcoin-development] Bip 32 Question

2015-06-12 Thread William Swanson
The `n` is the curve order, as shown here: https://en.bitcoin.it/wiki/Secp256k1 This step is necessary to keep you on the curve. The secp256k1_ec_privkey_tweak_add function from libsecp256k1 handles this automatically, but if you use OpenSSL or some non-EC math library, you probably have to do it

Re: [Bitcoin-development] 75%/95% threshold for transaction versions

2015-04-24 Thread William Swanson
On Thu, Apr 16, 2015 at 9:12 AM, s7r wrote: > Thanks for your reply. I agree. Allen has a good point in the previous > email too, so the suggestion might not fix anything and complicate things. The BIP 62 approach to malleability isn't the only option. Another approach is to sign the transaction

Re: [Bitcoin-development] Request For Discussion / BIP number - Multi-Currency Hierarchy For Use In Multisignature Deterministic Wallets

2015-04-08 Thread William Swanson
coin usability. > > For that reason alone I will say I disagree for a BIP for this. > - Jona > > > 2015-04-08 16:46 GMT+09:00 William Swanson : >> >> It's not really clear why this is better than BIP 44 as it already >> stands. You have the same fields, but

Re: [Bitcoin-development] Request For Discussion / BIP number - Multi-Currency Hierarchy For Use In Multisignature Deterministic Wallets

2015-04-08 Thread William Swanson
ti-currency, multisignature wallets," is pretty vauge. Also, there is nothing in this spec that addresses the multisignature use-case. The BIP 45 spec does a lot of extra work to make multisignature work smoothly. I'm not trying to criticize your proposal. I'm just trying to under

Re: [Bitcoin-development] Proposal for P2P Wireless (Bluetooth LE) transfer of Payment URI

2015-02-05 Thread William Swanson
On Thu, Feb 5, 2015 at 2:10 PM, Eric Voskuil wrote: > A MITM can receive the initial broadcast and then spoof it by jamming the > original. You then only see one. You are right, of course. There is no way to make Bluetooth 100% secure, since it is an over-the-air technology. You could try securin

Re: [Bitcoin-development] Serialised P2SH HD chains

2014-12-04 Thread William Swanson
Yes. A few of us over here in San Diego actually started working on a format like this a few months ago, but it's been on the back burner for a while. Our motivation was to come up with a shared HD wallet format. Say I would like create a 2-of-3 multisig wallet using my phone, PC, and hardware key

Re: [Bitcoin-development] bip-0021 and bip-0072 ambiguities & mistakes

2014-03-06 Thread William Swanson
On Thu, Mar 6, 2014 at 2:59 PM, Mike Hearn wrote: > Yes please, pull req would be great! I also noticed that escaping doesn't > seem to be necessary, and the resultant de-escaped QRcodes are certainly > much nicer! Thanks! All right, I have submitted the pull request. Hopefully, the specified beh

[Bitcoin-development] bip-0021 and bip-0072 ambiguities & mistakes

2014-03-06 Thread William Swanson
Hello, I am attempting to write a parser for bip-0021 URI's, including support for the new bip-0072 payment parameters. My goal is absolute correctness. Unfortunately, these BIP's have a few ambiguities and mistakes which ought to be corrected. First, I would like to point out that internet RFC 39