Bitcoin Forum
June 25, 2024, 03:01:49 PM *
News: Latest Bitcoin Core release: 27.0 [Torrent]
 
  Home Help Search Login Register More  
  Show Posts
Pages: « 1 ... 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 [87] 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 ... 154 »
1721  Bitcoin / Development & Technical Discussion / Re: Android client to bitcoind server ? on: August 26, 2013, 08:46:05 PM
If you want a full bitcoin node on Android, that will be tough, most Android clients are SPV clients or they don't store the entire blockchain.
1722  Economy / Gambling / Re: Is PrimeDice really (provably)fair? on: August 26, 2013, 02:15:43 PM
You still don't get it, the server seed can be pre-selected so that it always bets < a certain number. There recently a website that actually showed this technique in action.
1723  Other / Off-topic / Re: Is BCP19 actually Josh from Butterfly labs? on: August 25, 2013, 07:17:40 PM
I feel like Viceroy just won the internet.
1724  Economy / Gambling / Re: Any sympathy for an ex-gambler who lost 2.15 BTC? on: August 25, 2013, 06:34:21 PM
I also lost 0.5 BTC on primedice yesterday.  Undecided

http://gyazo.com/93dbee19fdb5280978d7a9c52ed30e48.png
Possibly because of this https://bitcointalk.org/index.php?topic=253144.0
1725  Bitcoin / Bitcoin Discussion / Re: 5500 satoshi transactions to satoshi address? on: August 25, 2013, 11:45:10 AM
Yes, and your point is?
1726  Economy / Gambling / Any sympathy for an ex-gambler who lost 2.15 BTC? on: August 24, 2013, 11:09:02 PM
I would first like to say that this is NOT a loan request, but rather an attempt to get people to help me recoup my gambling losses.

Everything started at..obviously SD, I was not an active gambler at all, till I sent 0.01 BTC to less than 3000 for the very first time on SD and won 0.21 BTC(I've only played there two or three times, but don't like constantly sending txes with fees), after that I played on PrimeDice and Coinroll.it where I lost the significant amount of my Bitcoins.

At this point if you are like "Ok, but what have you contributed to Bitcoin?", I've solo mined two blocks in 2011 June with a single 5850(5870+5850 on the next)and wrote this(for which I have not received a single donation; you can use the wayback machine to verify I have not changed my donation address) and this and not too while ago exposed this attack vector on PrimeDice and had this idea which I thought of independently from other ideas.

And if now you are like "Ok, have you learned any lessons?", well like many people I'd say yes I did, I've not gambled since then and have blocked every major dice game via the hosts file in Windows.

No sympathy? I am not forcing you to donate, you can just ignore this thread and go about as usual, there are more interesting things happening right now than this Smiley I am the one responsible for losing my BTC and via mining XPM I have only recouped 0.04 BTC total. If the mods think this thread is inappropriate or in the wrong forum, please move it Smiley
1727  Bitcoin / Development & Technical Discussion / Re: Bitcoin Daemon Multi-User Security on: August 24, 2013, 08:25:50 PM
I bet this online wallet will be compromised pretty darn fast, either by SQL injection, bad signatures or what happened to InstaWallet.
1728  Bitcoin / Development & Technical Discussion / Re: Sipa's secp256k1 for .NET! on: August 24, 2013, 01:52:24 PM
But true, there's definitely no beating a hand-tuned optimized C/assembly implementation of anything!

I should add, this isn't just a hand-tuned, optimized implementation of general ECDSA signature verification:  it's hand-tuned and optimized for the specific elliptic curve that Bitcoin uses (secp256k1).  The curve is actually one of the simpler ones blessed by NIST, and sipa is an optimization ninja Smiley 

People who actually understand cryptology are like the evil chess grandmaster james bond villains.
Isn't cryptology different than cryptography?
1729  Bitcoin / Development & Technical Discussion / Re: Sipa's secp256k1 for .NET! on: August 23, 2013, 01:37:53 PM
Well what did you expect? Bouncy castle is written in Java, which is compiled to bytecode and interpreted by the JVM or Dalvik VM. Sipa's implementation is in C, with hand-tuned assembly for speed it is executed directly on the CPU.
1730  Bitcoin / Bitcoin Discussion / I had a short conversation with a person who works at an ISP provider on: August 22, 2013, 07:41:29 PM
This person works at an ISP provider in South Africa, he told me that from morning to 8PM only traffic on port 80 is allowed, this is done to prevent torrenting. He told me that if someone wants to use any other port than port 80 he needs to call them and ask for permission to open X port up.

How will this affect Bitcoin?
1731  Economy / Service Discussion / Re: Best and Affordable Designing Service ''WEBGRAHIA.TK'' on: August 20, 2013, 02:31:44 PM
With that free domain extension? No way it's legit, especially when the user is a newbie. Beware!

No i have tried they are legit and cheap as well
And who would trust the opinion of a newbie, who barely has 20 posts?
1732  Other / Off-topic / Re: My hardware wallet finally arrived today (took 3 guys to deliver it). on: August 19, 2013, 08:35:18 PM
As a reference, what is the code for the safe? I promise to do only good deeds with it.
1733  Economy / Service Discussion / Re: Best and Affordable Designing Service ''WEBGRAHIA.TK'' on: August 18, 2013, 04:04:42 PM
With that free domain extension? No way it's legit, especially when the user is a newbie. Beware!
1734  Other / Off-topic / Re: SECRETS to our Universe and more! on: August 15, 2013, 05:14:31 PM
You shouldn't be out of the newbie section yet.

Don't really care for it man. lol
Then you don't care that you will likely get banned?
1735  Other / Off-topic / Re: SECRETS to our Universe and more! on: August 15, 2013, 05:08:23 PM
You shouldn't be out of the newbie section yet.
1736  Bitcoin / Development & Technical Discussion / Re: Bad signatures leading to 55.82152538 BTC theft (so far) on: August 15, 2013, 12:26:16 PM
Google posted an official post-mortem of the issue with SecureRandom as well as a fix.

However, I'm kinda confused. My read of the OpenSSL code would lead me to believe that it seeds itself [1] [2] with at least 32 bytes from /dev/urandom when you neglect to seed it yourself before hitting up RAND_bytes for randomness.

The proposed fix seeds OpenSSL manually from /dev/urandom (or if the OpenSSL-based SecureRandom isn't being used (non-JellyBean), simply serves randomness directly from /dev/urandom).

It's unclear to me how the proposed fix helps unless there is a flaw in OpenSSL's self seeding.  

Their fix does get rid of the Apache Harmony SecureRandom provider ... which, while bad (64 bits of entropy), mathematically could not have been the cause of the repeated signature nonces given their prevalence.

Even more confusing to me is how an OpenSSL self-seeding issue could lead to the particular pattern of repeated signature nonces observed ... in particular the majority of nonce repeats occurred in the context of the same transaction for sequential inputs. E.g. look at this offending transaction: 5 signatures; the first 2 share the same nonce as do the last two.  This transaction exhibits the exact same pattern.  For this bug to be responsible, the PRNG would literally need to spit out the same 32-bytes back to back. I don't see how this could happen with a thread-locked digest-based PRNG with singleton state (like OpenSSL's default) ... even if it's state was statically initialized.

I'm sure I'm missing something but if there are any other randomness nerds out there ... I'd love to hear your take.
Darn, looks like my Android application may be affected after all, I am rolling with my own statically linked OpenSSL library 1.01e I think, so it's not being seeded properly?
1737  Bitcoin / Bitcoin Discussion / Re: Satoshi Still Alive? on: August 14, 2013, 10:53:06 PM
When I was looking at the block info for the very first block, the "Genesis Block", I check the address where those first BTC50 went. It obviously it belonged to Satoshi Nakamoto. Apparently that address is still in use. And according to a transaction, a person sent a fraction of a mBTC to that address under the bitcoin-otc name Konichua. Any thoughts?

https://blockchain.info/address/12c6DSiU4Rq3P4ZxziKxzrL5LmMBrzjrJX
That is from block 1 btw, block 0 is the genesis block.
1738  Bitcoin / Development & Technical Discussion / Re: How to extract a specific "getmininginfo" value to use in a function ? on: August 14, 2013, 07:47:07 PM
The output is "encoded"(more like formatted) with JSON, look it up. PHP has JSON support via json_encode/json_decode.
1739  Other / Off-topic / Re: random lulz on: August 14, 2013, 04:08:58 PM
Wow nice find!

1740  Bitcoin / Bitcoin Discussion / Re: I just got .5 BTC out of nowhere? on: August 14, 2013, 04:07:53 PM
Well, I wasn't going to say it, but last year my btc-e bitcoins got doubled out of the blue.
Pages: « 1 ... 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 [87] 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 ... 154 »
Powered by MySQL Powered by PHP Powered by SMF 1.1.19 | SMF © 2006-2009, Simple Machines Valid XHTML 1.0! Valid CSS!