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[~AaronvanW@unaffiliated/aaronvanw] has joined #bitcoin-wizards 11:49 -!- EvilHero___ [~EvilHero@208.77.77.34] has quit [Ping timeout: 260 seconds] 11:59 -!- dnaleor [~dnaleor@78-23-74-78.access.telenet.be] has quit [Ping timeout: 240 seconds] 12:15 -!- AaronvanW [~AaronvanW@unaffiliated/aaronvanw] has quit [Remote host closed the connection] 12:45 -!- waxwing [~waxwing@185.65.135.88] has quit [Ping timeout: 240 seconds] 12:55 -!- waxwing [~waxwing@31.7.59.226] has joined #bitcoin-wizards 12:58 < ryan-c> Will posting a bitcoin address here get me autokicked? I have a question about one. 13:00 < amiller> should be ok, i dont think there's autokicking here 13:03 < ryan-c> I wanted to know if 15Mjbr23k7LfadNVAMmFZwdzcL5VFHe9gC was made by someone here. 13:05 -!- WungFu [~WungFu@unaffiliated/wungfu] has joined #bitcoin-wizards 13:09 -!- chjj [~chjj@unaffiliated/chjj] has joined #bitcoin-wizards 13:12 -!- paveljanik [~paveljani@unaffiliated/paveljanik] has quit [Quit: Leaving] 13:14 -!- WungFu [~WungFu@unaffiliated/wungfu] has quit [Quit: Leaving] 13:26 -!- AaronvanW [~AaronvanW@182.red-83-34-57.dynamicip.rima-tde.net] has joined #bitcoin-wizards 13:26 -!- AaronvanW [~AaronvanW@182.red-83-34-57.dynamicip.rima-tde.net] has quit [Changing host] 13:26 -!- AaronvanW [~AaronvanW@unaffiliated/aaronvanw] has joined #bitcoin-wizards 13:33 -!- EvilHero_ [~EvilHero@208.77.77.34] has joined #bitcoin-wizards 13:34 -!- EvilHero_ [~EvilHero@208.77.77.34] has quit [Max SendQ exceeded] 13:35 -!- EvilHero_ [~EvilHero@208.77.77.34] has joined #bitcoin-wizards 13:36 -!- EvilHero_ [~EvilHero@208.77.77.34] has quit [Remote host closed the connection] 13:36 -!- EvilHero_ [~EvilHero@208.77.77.34] has joined #bitcoin-wizards 13:39 -!- EvilHero_ [~EvilHero@208.77.77.34] has quit [Read error: Connection reset by peer] 13:44 -!- EvilHero_ [~EvilHero@208.77.77.34] has joined #bitcoin-wizards 13:44 -!- EvilHero_ [~EvilHero@208.77.77.34] has quit [Remote host closed the connection] 14:14 -!- flipperWhip [~senpai@rrcs-97-78-166-154.se.biz.rr.com] has quit [Quit: flipperWhip] 14:18 -!- g0d355__ [~lmao@172.93.111.202] has joined #bitcoin-wizards 14:18 -!- Chris_Stewart_5 [~Chris_Ste@unaffiliated/chris-stewart-5/x-3612383] has quit [Ping timeout: 258 seconds] 14:19 -!- azonenberg [~azonenber@chat.dmz.bainbridge.antikernel.net] has joined #bitcoin-wizards 14:19 < azonenberg> Hi guys - was referred here by ##crypto 14:19 < azonenberg> I'm looking for info on the state of the art in preimage attacks against HMAC-MD5 14:19 < azonenberg> not strictly cryptocurrency related 14:20 < azonenberg> More specifically, given a protocol in which two endpoints exchange HMAC-MD5 authenticated messages 14:20 < azonenberg> how practical is it currently for a network-level attacker to forge messages? If it's not currently achievable, any guesses on how far out? 14:20 < azonenberg> I know MD5 is weak against collisions but that doesn't directly break preimage 14:39 -!- a5m0 [~a5m0@unaffiliated/a5m0] has quit [Quit: No Ping reply in 180 seconds.] 14:41 -!- a5m0 [~a5m0@unaffiliated/a5m0] has joined #bitcoin-wizards 14:43 -!- riclas [~riclas@72.210.189.46.rev.vodafone.pt] has joined #bitcoin-wizards 14:55 -!- Marquess_Loaf [uid67551@gateway/web/irccloud.com/x-iqgdejzzymdrbupa] has joined #bitcoin-wizards 15:01 -!- wasi [~wasi@gateway/tor-sasl/wasi] has quit [Remote host closed the connection] 15:01 -!- wasi [~wasi@gateway/tor-sasl/wasi] has joined #bitcoin-wizards 15:02 -!- JHistone [~JHistone@cpc102320-sgyl38-2-0-cust380.18-2.cable.virginm.net] has joined #bitcoin-wizards 15:09 -!- Guyver2 [~Guyver2@guyver2.xs4all.nl] has quit [Quit: :)] 15:25 -!- tromp [~tromp@ool-944bc34f.dyn.optonline.net] has quit [Read error: Connection reset by peer] 15:26 -!- tromp [~tromp@ool-944bc34f.dyn.optonline.net] has joined #bitcoin-wizards 15:59 -!- mountaingoat [~mountaing@unaffiliated/mountaingoat] has quit [Ping timeout: 264 seconds] 16:02 -!- Aranjedeath [~Aranjedea@unaffiliated/aranjedeath] has quit [Ping timeout: 246 seconds] 16:03 -!- Aranjedeath [~Aranjedea@unaffiliated/aranjedeath] has joined #bitcoin-wizards 16:12 -!- mountaingoat [~mountaing@unaffiliated/mountaingoat] has joined #bitcoin-wizards 16:15 -!- afk11_ [~afk11@176.61.69.103] has joined #bitcoin-wizards 16:21 -!- cyphase [~cyphase@unaffiliated/cyphase] has quit [Ping timeout: 256 seconds] 16:22 -!- bityogi [~textual@208-104-132-26.brvd.dsl.dyn.comporium.net] has quit [Quit: My MacBook has gone to sleep. ZZZzzz...] 16:25 -!- cyphase [~cyphase@unaffiliated/cyphase] has joined #bitcoin-wizards 16:26 -!- JHistone [~JHistone@cpc102320-sgyl38-2-0-cust380.18-2.cable.virginm.net] has quit [Quit: Leaving] 16:26 -!- mountaingoat [~mountaing@unaffiliated/mountaingoat] has quit [Ping timeout: 258 seconds] 16:44 -!- mountaingoat [~mountaing@unaffiliated/mountaingoat] has joined #bitcoin-wizards 16:50 -!- Chris_Stewart_5 [~Chris_Ste@unaffiliated/chris-stewart-5/x-3612383] has joined #bitcoin-wizards 16:51 -!- dodomojo [~goksinen@2604:2000:c591:8400:dc0a:9dd0:74ee:7639] has joined #bitcoin-wizards 17:00 -!- JackH [~laptop@79-73-188-131.dynamic.dsl.as9105.com] has joined #bitcoin-wizards 17:01 -!- dnaleor [~dnaleor@78-23-74-78.access.telenet.be] has joined #bitcoin-wizards 17:27 -!- hashtag [~hashtagg_@cpe-174-97-254-80.ma.res.rr.com] has joined #bitcoin-wizards 17:39 < jeremyrubin> Has anyone seen a script with a combination OP_IF pushdata in the wild? Example: OP_IF (PUSHDATA 100) OP_ELSE <99 bytes> OP_ENDIF 17:39 < jeremyrubin> As far as I can tell, these can evaluate properly 17:41 < jeremyrubin> if you pass in OP_1 to the script, then you get the pushdata containing > 17:43 < jeremyrubin> if you pass in OP_0, you should execute <99 bytes> as script 17:53 -!- thrmo [~thrmo@unaffiliated/thrmo] has quit [Remote host closed the connection] 17:54 -!- abpa [~abpa@96-82-80-25-static.hfc.comcastbusiness.net] has quit [Quit: Textual IRC Client: www.textualapp.com] 17:55 -!- dodomojo [~goksinen@2604:2000:c591:8400:dc0a:9dd0:74ee:7639] has quit [Remote host closed the connection] 17:55 -!- thrmo [~thrmo@unaffiliated/thrmo] has joined #bitcoin-wizards 17:57 -!- dodomojo [~goksinen@2604:2000:c591:8400:addb:9543:ac1a:9240] has joined #bitcoin-wizards 18:08 -!- dodomojo_ [~goksinen@2604:2000:c591:8400:4119:8c2e:bd3c:1984] has joined #bitcoin-wizards 18:11 -!- dodomojo [~goksinen@2604:2000:c591:8400:addb:9543:ac1a:9240] has quit [Ping timeout: 246 seconds] 18:22 -!- dodomojo [~goksinen@2604:2000:c591:8400:4cd2:2dd3:d101:9ddb] has joined #bitcoin-wizards 18:24 -!- dodomoj__ [~goksinen@2604:2000:c591:8400:8d09:5c1a:98d6:cde8] has joined #bitcoin-wizards 18:25 -!- dodomojo_ [~goksinen@2604:2000:c591:8400:4119:8c2e:bd3c:1984] has quit [Ping timeout: 246 seconds] 18:27 -!- dodomojo_ [~goksinen@2604:2000:c591:8400:6043:dbbf:e139:2fc8] has joined #bitcoin-wizards 18:27 -!- dodomojo [~goksinen@2604:2000:c591:8400:4cd2:2dd3:d101:9ddb] has quit [Ping timeout: 246 seconds] 18:30 -!- dodomoj__ [~goksinen@2604:2000:c591:8400:8d09:5c1a:98d6:cde8] has quit [Ping timeout: 246 seconds] 18:34 -!- dodomojo [~goksinen@2604:2000:c591:8400:ed43:95e9:4852:c00e] has joined #bitcoin-wizards 18:37 -!- dodomojo_ [~goksinen@2604:2000:c591:8400:6043:dbbf:e139:2fc8] has quit [Ping timeout: 246 seconds] 18:40 -!- str4d [~str4d@50-255-21-53-static.hfc.comcastbusiness.net] has joined #bitcoin-wizards 18:46 -!- dodomojo_ [~goksinen@2604:2000:c591:8400:ad3b:2baa:1a7:8cf0] has joined #bitcoin-wizards 18:47 -!- dodomoj__ [~goksinen@2604:2000:c591:8400:2c0c:89c0:231a:c66] has joined #bitcoin-wizards 18:48 -!- dodomoj__ [~goksinen@2604:2000:c591:8400:2c0c:89c0:231a:c66] has quit [Remote host closed the connection] 18:48 -!- dodomojo [~goksinen@2604:2000:c591:8400:ed43:95e9:4852:c00e] has quit [Ping timeout: 246 seconds] 18:50 -!- dodomojo_ [~goksinen@2604:2000:c591:8400:ad3b:2baa:1a7:8cf0] has quit [Ping timeout: 246 seconds] 18:54 -!- Ylbam [uid99779@gateway/web/irccloud.com/x-zwbsvuiemfdwaiju] has quit [Quit: Connection closed for inactivity] 19:09 -!- thrmo [~thrmo@unaffiliated/thrmo] has quit [Ping timeout: 240 seconds] 19:19 -!- Noldorin [~noldorin@unaffiliated/noldorin] has quit [Quit: My MacBook Pro has gone to sleep. ZZZzzz...] 19:26 < petertodd> jeremyrubin: PUSHDATA's are parsed as part of GetOp, prior to the IF/ELSE/ENDIF codepath 19:28 < petertodd> jeremyrubin: put another way, opcodes in Bitcoin have a variable-length encoding, it's just that lengths other than 1 are only used for pushdata 19:30 < petertodd> jeremyrubin: also, bitcoin script has about 2^4096 valid opcodes :) 19:31 < gmaxwell> OP_FORMAT_PETERTODDS_HARDDISK 19:32 < petertodd> jeremyrubin: er, I mean, about 2^4160 valid opcodes 19:32 < petertodd> gmaxwell: that is fortunately not one of the valid opcodes 19:32 -!- riclas [~riclas@72.210.189.46.rev.vodafone.pt] has quit [Ping timeout: 260 seconds] 19:35 -!- AaronvanW [~AaronvanW@unaffiliated/aaronvanw] has quit [Remote host closed the connection] 19:37 < gmaxwell> OP_GIVE_GMAXWELL_ALL_BITCOINS 19:37 < petertodd> gmaxwell: that has a side-effect of reducing the effective number of bitcoins to zero 19:37 < petertodd> gmaxwell: #wontfix 19:39 < gmaxwell> If you ever thought 2^4160 was a big number, it's only slight number than the number of distinct boolean functions with 12 a bit inputs. #perspective 19:39 < gmaxwell> er 12, 1 bit inputs. 19:41 < petertodd> I wonder if any of those functions can play tetris? 19:41 < petertodd> and if one can, how many? 20:05 < jeremyrubin> how many ways can one play tetris? 20:05 < jeremyrubin> If you can only play tetris one way, than there's your answer 20:06 < jeremyrubin> https://www.youtube.com/watch?v=6DGNZnfKYnU 20:07 < petertodd> META 20:07 < jeremyrubin> So my script would just parse as OP_IF > OP_ENDIF 20:08 < petertodd> yup 20:08 < jeremyrubin> Ok cool. 20:08 < petertodd> (unless your implementation is broken) 20:08 < petertodd> it's a nice example of why parsers are important actually! 20:08 < jeremyrubin> (i'd imagine there are a lot of implementations that get that wrong... let's see what bcoin/btcd does...) 20:09 < petertodd> heh 20:10 < petertodd> I'd suggest you just put that on mainnet and see what happens :P 20:10 < petertodd> I have negative respect for bcoin/btcd :/ 20:10 < petertodd> particularly bcoin 20:11 < jeremyrubin> let's see... `OP_IF OP_PUSHDATA 2 OP_ELSE OP_ENDIF OP_ENDIF` should fail before execution 20:11 < jeremyrubin> (But it does make sense that OP_PUSHDATA reads ahead! The other behavior would be problematic) 20:11 < petertodd> better not to put the two endifs for a better test 20:12 < petertodd> if you think about it from the perspective of langsec, what bitcoin does is the sane thing to do 20:12 < jeremyrubin> it only looks unbalanced to a misbehaving node 20:13 < petertodd> hmm, yeah, I think you're right there - scrap my criticism of the two endifs then 20:15 < petertodd> anyway, I really need to get back to my MIT talk slides :) good luck! 20:17 < jeremyrubin> thanks! 20:27 -!- airbreather_ [~airbreath@d149-67-99-43.nap.wideopenwest.com] has joined #bitcoin-wizards 20:29 -!- moli_ [~molly@unaffiliated/molly] has joined #bitcoin-wizards 20:30 -!- airbreather [~airbreath@d149-67-99-43.nap.wideopenwest.com] has quit [Ping timeout: 268 seconds] 20:31 -!- molz_ [~molly@unaffiliated/molly] has quit [Ping timeout: 246 seconds] 20:35 < kanzure> oh where are the streams 20:38 -!- rusty [~rusty@pdpc/supporter/bronze/rusty] has joined #bitcoin-wizards 21:00 -!- legogris [~legogris@128.199.205.238] has quit [Remote host closed the connection] 21:00 -!- legogris [~legogris@128.199.205.238] has joined #bitcoin-wizards 21:07 -!- str4d [~str4d@50-255-21-53-static.hfc.comcastbusiness.net] has quit [Ping timeout: 260 seconds] 21:14 -!- TheSeven [~quassel@rockbox/developer/TheSeven] has quit [Disconnected by services] 21:14 -!- [7] [~quassel@rockbox/developer/TheSeven] has joined #bitcoin-wizards 21:15 -!- pro [~pro@unaffiliated/pro] has quit [Quit: Leaving] 21:34 -!- rusty [~rusty@pdpc/supporter/bronze/rusty] has quit [Ping timeout: 240 seconds] 21:42 -!- dodomojo [~goksinen@2604:2000:c591:8400:bae8:56ff:fe2c:6c02] has joined #bitcoin-wizards 21:43 -!- Starduster [~SD@unaffiliated/starduster] has joined #bitcoin-wizards 21:50 -!- Robinson [~user1@2a02:a03f:a66:9300:18a8:3d09:45ec:b133] has joined #bitcoin-wizards 21:57 -!- jannes [~jannes@095-097-246-234.static.chello.nl] has quit [Quit: Leaving] 21:59 -!- dodomojo [~goksinen@2604:2000:c591:8400:bae8:56ff:fe2c:6c02] has quit [Read error: Connection reset by peer] 22:00 -!- dodomojo [~goksinen@2604:2000:c591:8400:c55e:f423:e06e:a1c5] has joined #bitcoin-wizards 22:02 -!- dodomojo_ [~goksinen@2604:2000:c591:8400:a0b2:85de:cfe2:4cfe] has joined #bitcoin-wizards 22:05 -!- dodomojo [~goksinen@2604:2000:c591:8400:c55e:f423:e06e:a1c5] has quit [Ping timeout: 246 seconds] 22:08 -!- g0d355__ [~lmao@172.93.111.202] has quit [K-Lined] 22:20 -!- Robinson [~user1@2a02:a03f:a66:9300:18a8:3d09:45ec:b133] has quit [Ping timeout: 264 seconds] 22:21 -!- dodomojo_ [~goksinen@2604:2000:c591:8400:a0b2:85de:cfe2:4cfe] has quit [Remote host closed the connection] 22:23 -!- dodomojo [~goksinen@2604:2000:c591:8400:25f5:7195:66f3:8e2d] has joined #bitcoin-wizards 22:34 -!- str4d [~str4d@107-204-212-44.lightspeed.sntcca.sbcglobal.net] has joined #bitcoin-wizards 22:36 -!- dodomojo_ [~goksinen@2604:2000:c591:8400:113c:7218:f169:827] has joined #bitcoin-wizards 22:37 -!- dodomoj__ [~goksinen@2604:2000:c591:8400:2593:cc88:1bdd:f385] has joined #bitcoin-wizards 22:39 -!- dodomojo [~goksinen@2604:2000:c591:8400:25f5:7195:66f3:8e2d] has quit [Ping timeout: 258 seconds] 22:40 -!- dodomojo_ [~goksinen@2604:2000:c591:8400:113c:7218:f169:827] has quit [Ping timeout: 246 seconds] 22:43 -!- Aranjedeath [~Aranjedea@unaffiliated/aranjedeath] has quit [Quit: Three sheets to the wind] 22:50 -!- edvorg [~edvorg@42.116.159.48] has joined #bitcoin-wizards 22:55 -!- str4d [~str4d@107-204-212-44.lightspeed.sntcca.sbcglobal.net] has quit [Ping timeout: 268 seconds] 22:59 -!- dodomoj__ [~goksinen@2604:2000:c591:8400:2593:cc88:1bdd:f385] has quit [Remote host closed the connection] 23:33 -!- dodomojo [~goksinen@2604:2000:c591:8400:2593:cc88:1bdd:f385] has joined #bitcoin-wizards 23:38 -!- dodomojo [~goksinen@2604:2000:c591:8400:2593:cc88:1bdd:f385] has quit [Ping timeout: 246 seconds] 23:42 -!- _whitelogger [~whitelogg@uruz.whitequark.org] has quit [Remote host closed the connection] 23:43 -!- _whitelogger [~whitelogg@uruz.whitequark.org] has joined #bitcoin-wizards --- Log closed Sat Mar 04 00:00:49 2017