bitcoinlottery (OP)
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May 26, 2011, 04:45:55 PM
Last edit: May 26, 2011, 07:24:01 PM by bitcoinlottery |
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Okay, I implemented a somewhat simple random generator. It is quite secure for now, but I will likely improve it in the future. The SHA 256 hash for the random string is: 8b3de709bd7c91e2eeeb42c2cce5f63f38866fa72075b3d4da8aa8c88f2c5a7c |
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"There should not be any signed int. If you've found a signed int
somewhere, please tell me (within the next 25 years please) and I'll
change it to unsigned int." -- Satoshi
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bitcoinlottery (OP)
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May 26, 2011, 05:05:01 PM
Last edit: May 26, 2011, 08:44:50 PM by bitcoinlottery |
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Do you know whether the transaction hashes are totally random/uncontrollable? If so, the hashes can be added up and used for the random generator as quite easy alternative.
They are fairly random. BUT the RANDOM number for the winner has to come after all the tickets, for IF the user knows what transaction hash will win they could re-send over and over until they get a hash that wins. For mine, I wait till the tickets are in then set up finding who won. Do you think it is secure now? Edit: okay it is still possible for me to try and try till I win... so that's the reason to add the hash of block 1 and 2 after 0:00... =) I maybe implement that next week. |
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bitlotto
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May 27, 2011, 03:26:21 AM |
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Do you know whether the transaction hashes are totally random/uncontrollable? If so, the hashes can be added up and used for the random generator as quite easy alternative.
They are fairly random. BUT the RANDOM number for the winner has to come after all the tickets, for IF the user knows what transaction hash will win they could re-send over and over until they get a hash that wins. For mine, I wait till the tickets are in then set up finding who won. Do you think it is secure now? Edit: okay it is still possible for me to try and try till I win... so that's the reason to add the hash of block 1 and 2 after 0:00... =) I maybe implement that next week. Ya, I think your getting why I use block data as well. Your hash of random data is secure against others cheating but you still could. Adding block data makes it so you can't as well. |
*Next Draw Feb 1* BitLotto: monthly raffle (0.25 BTC per ticket) Completely transparent and impossible to manipulate who wins. TOR TOR2WEB Donations to: 1JQdiQsjhV2uJ4Y8HFtdqteJsZhv835a8J are appreciated. |
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bitcoinlottery (OP)
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May 28, 2011, 07:56:11 AM |
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Just 14 hours to go! You can still get your 0.02 btc!
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eskil
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May 28, 2011, 11:04:34 AM |
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ok i finally managed to transfer  am i still on of the first 6 ? |
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bitcoinlottery (OP)
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May 28, 2011, 11:52:47 AM |
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I did now =)
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bitcoinlottery (OP)
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May 28, 2011, 03:03:12 PM |
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Size is 0.11 bitcoin now!
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Dansker
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May 28, 2011, 04:13:22 PM |
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Wait are you saying I am guaranteed 0.01 BTC in profit + a chance to win if I transfer you my 0.01 BTC?  ? |
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slowmining
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May 28, 2011, 04:42:59 PM |
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Just sent 0.04.
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bitcoinlottery (OP)
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May 28, 2011, 05:38:03 PM
Last edit: May 28, 2011, 05:53:14 PM by bitcoinlottery |
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Wait are you saying I am guaranteed 0.01 BTC in profit + a chance to win if I transfer you my 0.01 BTC? ? Yes, that was actually the case  For me 6 * 0.03 = 0.18, bigger than the jackpot size |
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frycicle
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May 28, 2011, 05:42:30 PM |
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Sent .01 BTC.
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Buy Newegg Products with Bitcoin with 0% transaction fee! bitcoinredemption.com
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bitcoinlottery (OP)
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May 28, 2011, 06:00:22 PM |
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Then it must be 0.16 btc now =)
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Wes1180
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May 28, 2011, 07:00:56 PM |
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I sent 0.1, hope I'm not too late  (also am I one of the six?) |
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bitcoinlottery (OP)
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May 28, 2011, 09:09:00 PM |
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I sent 0.1, hope I'm not too late (also am I one of the six?) No unfortunately not. Jackpot is now 0.36 btc. I will look tommorow who won. But let's say the game stops at 23:59:59 28 may UTC (3 hours). The others will participate in next lotto. |
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bitcoinlottery (OP)
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May 29, 2011, 02:03:19 PM |
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113Wq7ngZiqosdwrmjzXxmvf5boPUaQw95 won 0.36 btc!
The random key was
Xgh=P3cTMcCGV=<O7cg4cn@gVx>QMwywOa\3DyK^tW<gg5?eOCstqZUEF\a^5edlcI6Ob=sLjIl>9P?u]3GnD\X0f3ZXfJK><CbW
with tickets:
["1Km4sASEeKUWPtjRaSxmVghF5FfkadWVei",2],
["18uZGH42pcmHVtZ8sux7bCf8oJJtSCAAJs",1],
["1Jmn97kfJ6DBBCuft6Z1oW8e2Lwgheyr6s",2],
["1Jmn97kfJ6DBBCuft6Z1oW8e2Lwgheyr6s",1],
["1Jmn97kfJ6DBBCuft6Z1oW8e2Lwgheyr6s",1],
["1Myn229CXkW796kDrUd9obGbC43aYzeTAb",3],
["1368J5rDUheBr1kvaubWuDDFBnSaTcBogK",1],
["1EVP7etmA6RRBFW7sgf595QtiUxX3fs1Mt",4],
["1F35MvPKPSEc1L198dPR1weyXnkDG516fN",1],
["113Wq7ngZiqosdwrmjzXxmvf5boPUaQw95",10],
["1NcG2RD6SQ2DE34tuT2fEFy2BEBP1ritpA",10]
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bitcoinlottery (OP)
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May 29, 2011, 04:08:20 PM |
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I need 0.03 bitcoin for the transaction... But I have only 0.36 btc because of the first six times bonus... So the wait is till I get some mining cents or new tickets.
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bitcoinlottery (OP)
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May 30, 2011, 05:31:12 AM |
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0.02 btc to go...
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bitcoinlottery (OP)
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May 30, 2011, 10:10:28 AM
Last edit: May 30, 2011, 09:16:40 PM by bitcoinlottery |
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0.01 btc to go...
Jackpot for 3 July is 0.04 btc!
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