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01:16:28 <Luke-Jr> michagogo|cloud: hm?
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01:51:34 <Luke-Jr> oh
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17:42:52 <nsh> the gig's up guys: http://bitcoinisablackop.wordpress.com/2014/02/02/thoughts-on-bitcoin/
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17:45:16 <phantomcircuit> nsh, that is possibly one of the stupidest things i've read today
17:45:24 <phantomcircuit> wait no
17:45:27 <phantomcircuit> only second place
17:46:33 <petertodd> always helpful to have obviously crazy people criticising you you know - lets you lump in all your critics in one basket :P
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17:53:18 <michagogo|cloud> ...how the f*** is it obfuscated?
17:53:36 <petertodd> michagogo|cloud: moon math
17:53:36 <michagogo|cloud> And there's no encryption involved...
17:53:53 <michagogo|cloud> ;;google stuxnet
17:53:54 <gribble> Stuxnet - Wikipedia, the free encyclopedia: <http://en.wikipedia.org/wiki/Stuxnet>; Stuxnet: Anatomy of a Computer Virus on Vimeo: <http://vimeo.com/25118844>; W32 Stuxnet Dossier - Symantec: <http://www.symantec.com/content/en/us/enterprise/media/security_response/whitepapers/w32_stuxnet_dossier.pdf>
17:54:25 <petertodd> heh, seriously if anything if I find out that Bitcoin was a NSA plot, I'm going to commend the people involved for excellent in the new field of programmer/actors
17:54:29 <michagogo|cloud> Predating it by about 2 years...
17:54:41 <michagogo|cloud> Sorry, a year and a half
17:55:03 <michagogo|cloud> * michagogo|cloud suspects this is simple trolling
17:55:14 <petertodd> indeed
17:58:12 <nsh> it's one of those unstoppable Poe's law meets immovable Hanlon's razor situations
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18:18:49 <a5m0> speaking of stealth addresses: "As for the nonce keypair, that is included in the transaction in an additional zero-valued output" wouldn't this be a weakness in that it prevents sending to stealth addresses from webwallets/alternative clients that only allow sending to an address?
18:19:14 <petertodd> a5m0: yeah they need to be upgraded of course
18:19:30 <petertodd> a5m0: no easy way around that
18:26:04 <shesek> is it planned to work with multiple stealth outputs?
18:26:33 <shesek> with multiple OP_RETURNs, each immediately after the regular outputs, or something like that?
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18:27:17 <petertodd> shesek: well interestingly in the no-prefix case you only need a single OP_RETURN and single ephemeral pubkey
18:28:31 <petertodd> however if you want to use coinjoin with stealth addrs, then that's a problem... we should allow multiple OP_RETURN's if we're not going to ban OP_CHECK(MULTI)SIG
18:29:54 <shesek> how does it work with a single OP_RETURN?
18:30:45 <petertodd> shesek: simple, the ephemeral pubkey is just a pubkey - you can reuse it for multiple ECDH nonces on multiple outputs - the other outputs just look like change or something else to each recipient
18:31:42 <petertodd> e.g. you could do a wallet where you have a single master key which is used to derive ephemeral keys *deterministically*, and then use stealth addresses for your *change*
18:31:44 <shesek> right, yeah, that makes sense
18:31:50 <shesek> not quite sure why I thought this was a problem
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18:42:23 <a5m0> without previous knowlege is it possible to search the blockchain for multisig transactions that require a specific signature to unlock?
18:42:58 <shesek> specific signature or specific public key?
18:43:20 <shesek> the signature depends on the exact spending transaction, this doesn't really make sense
18:43:32 <a5m0> say there is a 2of3 address that someone paid to, could i find this address if i knew 1 or 2 of those 3?
18:43:42 <shesek> if you meant public key - it is possible for pay-to-script transactions, but not for pay-to-script-hash
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18:47:38 <a5m0> how would you locate those pay-to-script transactions?
18:52:03 <shesek> well, the output script would contain a list of public keys. you would just check if the public key you're searching for is in there
18:52:41 <shesek> if you meant how you would technically do that, I don't think there are any tools that'll allow you to do that. you'll have to write something yourself that searches for it
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18:55:07 <a5m0> if coins were sent to the 2of3 payment address but not yet spent or otherwise published, you would not be able to search the output script though right?
18:56:43 <shesek> if it was sent to a pay-to-script-hash (p2sh) address - no, you wouldn't
18:57:04 <shesek> if it was sent to a regular pay-to-script, the public keys list would be part of the transaction sending the funds to the multisig
18:57:37 <shesek> (and it wouldn't be a "multisig address" in this case - those outputs aren't represented as addresses, only p2sh are)
19:02:43 <a5m0> i'm talking about the keys that are required to redeem the multisig, not the pubkeys that sent to it
19:03:10 <shesek> I'm talking about the same thing
19:03:42 <shesek> with p2sh, the transaction output contains the script hash, and the actual script is revealed when you're redeeming from the p2sh
19:04:25 <shesek> with regular pay-to-script outputs, the script itself is part of the funding transaction, and the list of the 3 public keys (assuming a 2-of-3 multisig) are part of the output paying to the multisig
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19:11:06 <a5m0> hmmm it sounds like i have some testnet work to do
19:12:17 <nsh> +1
19:12:44 <nsh> someone could make a testnet transaction type walkthrough/tutorial/gamething
19:13:09 <a5m0> thanks shesek
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