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About the recent server compromise Meta
Wait, you are suggesting because few guys' spam filters blocked the circular mai…
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n/a | bcearl | May 30, 2015, 02:54:01 PM |
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About the recent server compromise Meta
Thanks for the info. I confirmed at least two people who did not receive any suc…
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n/a | bcearl | May 29, 2015, 08:52:18 AM |
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About the recent server compromise Meta
There was an email on the 24th of May, 2015.I certainly did not get it, and I as…
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n/a | bcearl | May 29, 2015, 05:32:00 AM |
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About the recent server compromise Meta
Why did you not even send a warning mail to all addresses? Thousands of casual f…
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n/a | bcearl | May 29, 2015, 03:35:38 AM |
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Is bitcoin v0.10's new libsecp256k1 safe & without mathematical backdoors? Development & Technical Discussion
You are implying that OpenSSL is not a complete pile of shit. But it is. The new…
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n/a | bcearl | February 17, 2015, 10:36:54 AM |
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What if 50%+ attack starts at a disadvantage and has to succeed qucikly ? Development & Technical Discussion
The past can be considered more secure, but the attacker could fork at the curre…
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n/a | bcearl | January 12, 2015, 05:38:59 AM |
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Cold storage and bad RNG Development & Technical Discussion
Simply throw a coin or dice 160 times and you will have real random number.128 b…
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n/a | bcearl | January 06, 2015, 05:26:56 AM |
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Proposal for self-pruning Blockchain Development & Technical Discussion
self-pruning is bad, the entire idea behind bitcoin is having an eternal and int…
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n/a | bcearl | January 05, 2015, 12:42:59 PM |
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Proposal for self-pruning Blockchain Development & Technical Discussion
You argue as if this was some sort of an isolated question. It is not. And I am…
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n/a | bcearl | January 05, 2015, 06:17:39 AM |
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Proposal for self-recycling Blockchain Development & Technical Discussion
@Danny: Of course nobody knows what the future will bring. But the whole issue o…
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n/a | bcearl | January 04, 2015, 05:15:11 PM |
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Proposal for self-recycling Blockchain Development & Technical Discussion
This is not true. Bitcoin blocks are currently limited to 1 megabyte in size. …
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n/a | bcearl | January 04, 2015, 04:59:32 PM |
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Proposal for self-recycling Blockchain Development & Technical Discussion
You don't really cut size just by putting all the transactions into a single blo…
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n/a | bcearl | January 04, 2015, 04:55:54 PM |
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could you be Satoshi - #1 did you learn about hashcash before bitcoin? Development & Technical Discussion
Thats the point Adam is making. "Anyway I claim the hard part about bitcoin is t…
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n/a | bcearl | December 31, 2014, 06:23:00 AM |
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could you be Satoshi - #1 did you learn about hashcash before bitcoin? Development & Technical Discussion
Does B-money or bitgold have that?I looked it up, they both don't:The Bit Gold p…
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n/a | bcearl | December 29, 2014, 05:13:20 AM |
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about price stability, lack of price/supply feedback & long run electrical cost Development & Technical Discussion
I don't get why anybody would want that. Why should Bitcoin be more like gold in…
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n/a | bcearl | December 29, 2014, 03:40:16 AM |
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50% attack for ~800 BTC after block reward halving Development & Technical Discussion
Note that the 51 % attack only allows you to double spend or to invalidate other…
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n/a | bcearl | December 29, 2014, 03:17:24 AM |
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could you be Satoshi - #1 did you learn about hashcash before bitcoin? Development & Technical Discussion
If hashcash was the only novel required building block (other than very widely k…
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n/a | bcearl | December 29, 2014, 03:06:42 AM |
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could you be Satoshi - #2 did it occur to you hashcash was like virtual gold Development & Technical Discussion
BTW., I don't want to say that Bitcoin isn't well designed. I like how it is des…
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n/a | bcearl | December 29, 2014, 03:02:16 AM |
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could you be Satoshi - #2 did it occur to you hashcash was like virtual gold Development & Technical Discussion
Of course that would be possible. You could just say that one Bitcoin to mine co…
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n/a | bcearl | December 29, 2014, 02:34:00 AM |
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could you be Satoshi - #2 did it occur to you hashcash was like virtual gold Development & Technical Discussion
The gold mining analogy sucks because of the following dynamic:When the market p…
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n/a | bcearl | December 28, 2014, 06:06:48 PM |
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Reused R values again Development & Technical Discussion
In general there's little value to doing full disclosure. It's a net loss for th…
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n/a | bcearl | December 26, 2014, 09:45:32 AM |
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Reused R values again Development & Technical Discussion
Of course there is. The blockchain is a public ledger. Sweeping coins to an addr…
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n/a | bcearl | December 26, 2014, 09:40:29 AM |
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Reused R values again Development & Technical Discussion
There's no method of doing that in Bitcoin. But johoe did not steal anything, he…
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n/a | bcearl | December 26, 2014, 09:38:38 AM |
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Reused R values again Development & Technical Discussion
That would be gray hat. I am white hat. But when the first reused R values appea…
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n/a | bcearl | December 25, 2014, 10:15:41 AM |
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Can we decide on RFC 6979 or an equilvalent before we have more issues? Development & Technical Discussion
There is no global decision to be made here. RFC6979 has to be implemented by ea…
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n/a | bcearl | December 23, 2014, 10:11:52 AM |
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Encrypting Messages to Bitcoin Addresses Development & Technical Discussion
You just use ElGamal with elliptic curves. Classic ElGamal has been used by GPG…
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n/a | bcearl | December 23, 2014, 09:49:57 AM |
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0-confirmation transaction replaced with bigger fee. Is it possible? Development & Technical Discussion
Replacing low fee transactions by higher fee transactions is possible and is up…
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n/a | bcearl | December 19, 2014, 04:24:44 PM |
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Reused R values again Development & Technical Discussion
I robot that scans new transactions (timestamped or not), awsome! The thief's t…
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n/a | bcearl | December 19, 2014, 11:55:40 AM |
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Reused R values again Development & Technical Discussion
Okay, I hope everybody closed the browser tab with the blockchain.info wallet th…
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n/a | bcearl | December 18, 2014, 02:55:07 PM |
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0-confirmation transaction replaced with bigger fee. Is it possible? Development & Technical Discussion
But the adding of a single transaction to a single block can trigger a lot of se…
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n/a | bcearl | December 18, 2014, 02:51:22 PM |
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0-confirmation transaction replaced with bigger fee. Is it possible? Development & Technical Discussion
You can evaluate the total cost of switching a tx vs another. It would become ha…
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n/a | bcearl | December 18, 2014, 09:12:07 AM |
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0-confirmation transaction replaced with bigger fee. Is it possible? Development & Technical Discussion
Miners could do that, but I think there is no efficient strategy to arrange an o…
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n/a | bcearl | December 18, 2014, 06:54:04 AM |
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Reused R values again Development & Technical Discussion
Are they still not using deterministic “k” by now? Even a simple k = H(m||secret…
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n/a | bcearl | December 17, 2014, 07:26:29 AM |
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bitcoind eats whole server ram Bitcoin Technical Support
It is your operating system caching files. It is not "eaten". It boosts file sys…
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n/a | bcearl | December 16, 2014, 12:08:45 PM |
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Reused R values again Development & Technical Discussion
BTW., if someone with skill would manipulate the RNG intentionally, he would do…
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n/a | bcearl | December 16, 2014, 09:01:44 AM |
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Reused R values again Development & Technical Discussion
Or did just someone read the security alert and saved his money?This clearly mak…
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n/a | bcearl | December 16, 2014, 08:59:21 AM |
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Dealing with Bloat Development & Technical Discussion
It does not help at all, because the number of addresses with balances is still…
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n/a | bcearl | December 15, 2014, 05:37:59 PM |
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Reused R values again Development & Technical Discussion
Testing a random number generator is of course hard.You are right, but this one…
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n/a | bcearl | December 15, 2014, 05:31:21 PM |
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Reused R values again Development & Technical Discussion
or send it to the same address, i've changed the passDo NOT use the same address…
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n/a | bcearl | December 15, 2014, 12:26:14 PM |
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Reused R values again Development & Technical Discussion
Trust me, I've been hassling blockchain a lot harder.This is my life on the line…
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n/a | bcearl | December 15, 2014, 09:32:29 AM |
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Reused R values again Development & Technical Discussion
Other people are going to start sweeping wallets.This thread is pretty much a st…
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n/a | bcearl | December 15, 2014, 06:12:35 AM |
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Reused R values again Development & Technical Discussion
Okay, most is swept, I think less than a 1 BTC remaining I can assure you that…
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n/a | bcearl | December 14, 2014, 03:25:51 PM |
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Reused R values again Development & Technical Discussion
Okay, most is swept, I think less than a 1 BTC remaining Wrong this address alo…
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n/a | bcearl | December 14, 2014, 03:05:29 PM |
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How Perfect Offline Wallets Can Still Leak Bitcoin Private Keys Development & Technical Discussion
If someone would like to review my code, I'd be glad - https://github.com/hhanh0…
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n/a | bcearl | December 14, 2014, 02:17:19 PM |
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Reused R values again Development & Technical Discussion
Quotethe answer is in the post directly above yours (by bcearl).I only can say f…
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n/a | bcearl | December 14, 2014, 01:58:30 PM |
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Possible solution to 51% attack? Development & Technical Discussion
How do you define which chain is valid if no mining is done?What does "longest c…
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n/a | bcearl | December 14, 2014, 08:51:35 AM |
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Lost access to 0.71535432 BTC Bitcoin Technical Support
Bitcoin works very similar to cash in a sense that you have bills that are not d…
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n/a | bcearl | December 14, 2014, 04:01:02 AM |
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Reused R values again Development & Technical Discussion
@johoe: I bet you could swipe even more addresses, if you analyze the weak rando…
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n/a | bcearl | December 14, 2014, 03:18:21 AM |
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Lost access to 0.71535432 BTC Bitcoin Technical Support
I guess it was just the change and you needed some confirmations for your client…
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n/a | bcearl | December 14, 2014, 03:14:34 AM |
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Reused R values again Development & Technical Discussion
@johoe: Did you use the blockchainr tool or make your own?
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n/a | bcearl | December 12, 2014, 12:54:39 PM |
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Thoughts on type safety and crypto RNGs Development & Technical Discussion
You should not do crypto in JS or Java in the first place. In those languages, y…
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n/a | bcearl | December 11, 2014, 08:46:13 AM |
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Berliner Bitcoiner [jeden ersten Do; 19:00; Room77 Gräfestr.77 Kreuzberg] Treffen
Leider jetzt erst davon gehört. Beim nächsten Mal komme ich auch!
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n/a | bcearl | June 08, 2012, 06:55:17 AM |
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Dan Kaminskys thoughts on scalability Development & Technical Discussion
I thought about it once again:Dan, it is not like banks. Even if you end up with…
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n/a | bcearl | August 17, 2011, 04:27:26 AM |
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Is Bitcoin legally anonymous Bitcoin Discussion
The bitcoin connects - even if detected - is no evidence for a court of law. But…
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n/a | bcearl | August 06, 2011, 12:30:28 PM |
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BitCoin Deanonymization Development & Technical Discussion
The 50% mark is not really a tipping point, as you can still get left behind in…
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n/a | bcearl | August 06, 2011, 07:00:04 AM |
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GCC recommendation: -fstack-protector Development & Technical Discussion
We do, we use make. For our purposes, it works fine if you have a sane build en…
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n/a | bcearl | August 06, 2011, 06:54:57 AM |
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How I manage and protect my wallets (Ubuntu Linux) Bitcoin Discussion
Do you see any attacks that I haven't thought of?Would it be in the swap space s…
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n/a | bcearl | August 06, 2011, 06:53:03 AM |
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Dan Kaminskys thoughts on scalability Development & Technical Discussion
Yes, obviously the amount of data you have to store goes up with the number of u…
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n/a | bcearl | August 05, 2011, 08:43:33 AM |
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BitCoin Deanonymization Development & Technical Discussion
The other attack is the offline attack, where the attacker does not publish his…
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n/a | bcearl | August 05, 2011, 08:42:15 AM |
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Dan Kaminskys thoughts on scalability Development & Technical Discussion
Bitcoin doesn't track balances of addresses. That's not how it works.I know that…
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n/a | bcearl | August 05, 2011, 07:23:59 AM |
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Dan Kaminskys thoughts on scalability Development & Technical Discussion
with pruning and other efficiency improvements it's probably OK to store the ent…
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n/a | bcearl | August 05, 2011, 07:11:05 AM |
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BitCoin Deanonymization Development & Technical Discussion
The other attack is the offline attack, where the attacker does not publish his…
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n/a | bcearl | August 05, 2011, 07:06:48 AM |
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Dan Kaminskys thoughts on scalability Development & Technical Discussion
Here's one way you could distribute tx checking load: add a new command line swi…
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n/a | bcearl | August 05, 2011, 05:50:45 AM |
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BitCoin Deanonymization Development & Technical Discussion
@dakami:In your slides* you mention the myth that some security properties are b…
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n/a | bcearl | August 05, 2011, 05:31:36 AM |
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Im just been attacked and robbed on my MT Gox account Bitcoin Discussion
Have you been physically hurt? No? Then it is stolen, not robbed.
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n/a | bcearl | August 05, 2011, 04:18:09 AM |
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Religious Orientation Politics & Society
In Austria a Pastafarian finally got his driver's licence picture with a noodle…
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n/a | bcearl | July 14, 2011, 12:56:40 AM |
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Regarding passwords Off-topic
Certain configurations in the characters of the characters are much less likely…
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n/a | bcearl | July 12, 2011, 03:51:46 AM |
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Regarding passwords Off-topic
I have nothing further to add. You win. But I have another tip for you: You can…
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n/a | bcearl | July 12, 2011, 12:48:50 AM |
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GCC recommendation: -fstack-protector Development & Technical Discussion
I don't care what tool you want to use, but use one, please ...
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n/a | bcearl | July 12, 2011, 12:43:28 AM |
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Regarding passwords Off-topic
Gibson's calculator is not a password strength meter. There is an explicit discl…
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n/a | bcearl | July 11, 2011, 06:54:08 AM |
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GCC recommendation: -fstack-protector Development & Technical Discussion
The root of this problem resides in Bitcoin not having a configure script.That h…
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n/a | bcearl | July 11, 2011, 03:29:52 AM |
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Regarding passwords Off-topic
No, b1Ackb0x3!1 was hashed with the modern method. You can just look at the dump…
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n/a | bcearl | July 11, 2011, 03:28:22 AM |
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How Many Here Wish to Remain Anonymous When Making Bitcoin Purchases? Bitcoin Discussion
Once you strip away the desire for anonymity, bitcoin loses it's purpose. And c…
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n/a | bcearl | July 10, 2011, 12:45:45 PM |
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GCC recommendation: -fstack-protector Development & Technical Discussion
The root of this problem resides in Bitcoin not having a configure script.That h…
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n/a | bcearl | July 10, 2011, 12:39:47 PM |
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Comparison to Apple (AAPL) shares Speculation
There is only two ways:Maybe Bitcoin is unsuccessful. Then it's 100 % loss.I don…
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n/a | bcearl | July 10, 2011, 12:37:12 PM |
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Comparison to Apple (AAPL) shares Speculation
OUTCOMEAAPLBTC100% lossunlikelypossiblesimilar valuelikelypossible2x valuepossib…
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n/a | bcearl | July 10, 2011, 12:29:00 PM |
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How Many Here Wish to Remain Anonymous When Making Bitcoin Purchases? Bitcoin Discussion
I prefer cash in the grocery store, because neither is my banking information th…
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n/a | bcearl | July 10, 2011, 10:45:11 AM |
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Comparison to Apple (AAPL) shares Speculation
Since crapple makes shit and convinces its victims that they got something speci…
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n/a | bcearl | July 10, 2011, 07:33:13 AM |
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What programming language to learn? Bitcoin Discussion
If you care whether your language is widely in use:Programming Community IndexCo…
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n/a | bcearl | July 10, 2011, 07:20:27 AM |
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What programming language to learn? Bitcoin Discussion
C++ with Qt Framework.Puke.C with Glib/GObject system.
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n/a | bcearl | July 10, 2011, 07:15:40 AM |
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Is the Bitcoin falling ? DDOS breaks almost every major Pool Bitcoin Discussion
Bitcoin without pools would be even harder to break. Pools are a threat, DDoSing…
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n/a | bcearl | July 10, 2011, 03:42:32 AM |
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Regarding passwords Off-topic
No, b1Ackb0x3!1 was hashed with the modern method. You can just look at the dump…
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n/a | bcearl | July 09, 2011, 04:11:03 PM |
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Regarding passwords Off-topic
Some passwords weren't hashed with a modern method. But the one above was.If you…
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n/a | bcearl | July 09, 2011, 03:47:25 PM |
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GCC recommendation: -fstack-protector Development & Technical Discussion
QuoteIn Ubuntu 6.10 and later versions this option is enabled by defaultBitcoin…
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n/a | bcearl | July 09, 2011, 03:10:45 PM |
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Regarding passwords Off-topic
Somebody had a similar password on MtGox and was cracked:Man, I seriously undere…
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n/a | bcearl | July 09, 2011, 03:04:30 PM |
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Regarding passwords Off-topic
...take a phrase ie ilikepudding as an exampleadd some capsIlikePuDDingadd some…
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n/a | bcearl | July 09, 2011, 02:46:02 PM |
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Bitcoin will never reach $20 again Speculation
Criticize bitcoin: trollSpeculate in the wrong way: trollOpinion against the sta…
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n/a | bcearl | July 09, 2011, 02:02:12 PM |
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Bitcoin will never reach $20 again Speculation
ROTFLAgain somebody he puts economist in front of his name and thinks that it me…
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n/a | bcearl | July 09, 2011, 09:40:07 AM |
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Is the Bitcoin falling ? DDOS breaks almost every major Pool Bitcoin Discussion
Bitcoin without pools would be even harder to break. Pools are a threat, DDoSing…
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n/a | bcearl | July 09, 2011, 08:44:11 AM |
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Hosting provider + wallet.dat... How to get around trust issue? Bitcoin Discussion
You don't put a wallet on a hosting machine - ever. That's the most stupid thing…
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n/a | bcearl | July 09, 2011, 07:41:07 AM |
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Hosting provider + wallet.dat... How to get around trust issue? Bitcoin Discussion
For those merchants that are keeping a wallet.dat on a hosted server, how do you…
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n/a | bcearl | July 09, 2011, 06:06:44 AM |
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Hosting provider + wallet.dat... How to get around trust issue? Bitcoin Discussion
You don't put a wallet on a hosting machine - ever. That's the most stupid thing…
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n/a | bcearl | July 09, 2011, 06:05:46 AM |
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Bitcoin version 0.3.24 released Bitcoin Discussion
These installs seem to be getting more complex. I'll stick with 0.3.21. WTF? D…
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n/a | bcearl | July 09, 2011, 05:32:33 AM |
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Potential attack vector in generating Bitcoin addresses? Bitcoin Discussion
A secure cryptographic hash can be truncated and still retain most of its streng…
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n/a | bcearl | July 09, 2011, 04:58:43 AM |
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GCC recommendation: -fstack-protector Development & Technical Discussion
Does it affect performance much?If not, please submit a pull request, everything…
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n/a | bcearl | July 09, 2011, 04:25:38 AM |
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Bitcoin version 0.3.24 released Bitcoin Discussion
These installs seem to be getting more complex. I'll stick with 0.3.21. WTF? D…
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n/a | bcearl | July 09, 2011, 03:26:50 AM |
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GCC recommendation: -fstack-protector Development & Technical Discussion
I recommend to include the option -fstack-protector to the UNIX makefile. Many d…
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n/a | bcearl | July 09, 2011, 03:16:11 AM |
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Potential attack vector in generating Bitcoin addresses? Bitcoin Discussion
A secure cryptographic hash can be truncated and still retain most of its streng…
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n/a | bcearl | July 09, 2011, 02:47:03 AM |
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Googlebomb: Bitcoin on the Road to Mainstream Bitcoin Discussion
first item looks very stupid
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n/a | bcearl | July 07, 2011, 04:42:35 PM |
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deepbit has 50.18 % now Bitcoin Discussion
It's so funny how most people are fking clueless when it comes to math.The 50% t…
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n/a | bcearl | July 07, 2011, 07:38:20 AM |
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