Why isn't this listed on the forum news link above? It still shows 0.9.3.
It's still a release candidate. You should change thread subject to let the people know that is a release candidate rather than a final one, no? update: thanks, well done. |
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what is "constant time"?
Improved signing security
For 0.10 the security of signing against unusual attacks has been improved by making the signatures constant time and deterministic.
This change is a result of switching signing to use libsecp256k1 instead of OpenSSL. Libsecp256k1 is a cryptographic library optimized for the curve Bitcoin uses which was created by Bitcoin Core developer Pieter Wuille.
There exist attacks[1] against most ECC implementations where an attacker on shared virtual machine hardware could extract a private key if they could cause a target to sign using the same key hundreds of times. While using shared hosts and reusing keys are inadvisable for other reasons, it's a better practice to avoid the exposure.
OpenSSL has code in their source repository for derandomization and reduction in timing leaks, and we've eagerly wanted to use it for a long time but this functionality has still not made its way into a released version of OpenSSL. Libsecp256k1 achieves significantly stronger protection: As far as we're aware this is the only deployed implementation of constant time signing for the curve Bitcoin uses and we have reason to believe that libsecp256k1 is better tested and more thoroughly reviewed than the implementation in OpenSSL.
[1] https://eprint.iacr.org/2014/161.pdfA countermeasure against http://en.m.wikipedia.org/wiki/Timing_attack? |
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WTF! Where are the dozens of posts to this thread? I cypherdoc collapsing? One would not think so. BTC hit $330-ish...I would have expected to see the guy and his minions going balistic with glee. Like this: https://www.youtube.com/watch?v=M1owcncKCHg(Probably he's out for x-mas or some such. Happy holidays all.) We are running out of sidechains doping  Joking aside I prefer quality over quantity by a long shot. Happy holidays everyone. |
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Hello
I have a question about replacing transaction with smaller fee by the same transaction (same inputs) with bigger fee. As far as I understand it should not be possible because if miner has in its pool transaction which spends an input it will not accepts any other transaction which uses the same input. However everybody says that miner choose always by fee/kb ratio, so maybe from miner point of view pool content is not important and it accepts all new transaction as long as they are OK with previous blocks. Additionally in every manual for 'my transaction with small fee stacks' everybody says that you need to wait until transaction disappear from miners mempool. But my question is when it can happen since most of miners do not restart they machines at all. So is there any timeout for transaction?
Fwiw peter todd already implemented this idea, have a look: https://github.com/petertodd/replace-by-fee-toolsAnd on this thread you can get more info: https://bitcointalk.org/index.php?topic=199947.0If memory serves there should be something also on bitcoin development mailing list |
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Greed is good.
I'm very happy that there are more people offering liquidity at lower prices when we get there.
I will defend the bottom @220 as well. Whee, cheap coins. Much profit.
sorry if already answered, but do you care to share why you think @220 will be the "real" bottom? (serious question) Lots of technical stuff combined together (seriously) and then a ritual with a crystal ball (less serious). Nobody knows for sure 100%. I will go all in at 220 while my girlfriend is unemployed and we struggle to pay the bills. I see it as a very good opportunity to solve some financial problems. edit: or to go bankrupt  ;D;D haha. But who gives a fuck, it's only money I have a nice job and good health, so I don't have a problem with taking the risk. thanks for your answer. p.s. I wish you all the best with your investment strategy |
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why people already talking about buying?
plenty of time to buy till lower 200/
Think you might be getting a bit greedy there, champ? Greed is good. I'm very happy that there are more people offering liquidity at lower prices when we get there. I will defend the bottom @220 as well. Whee, cheap coins. Much profit. sorry if already answered, but do you care to share why you think @220 will be the "real" bottom? (serious question) |
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some highlights from the latest budget deal As presented earlier in the week, the 1,600 page bill also includes a number of provisions intended to gain votes from both parties, including: - increasing the amount an individual person can contribute to a national political party from $32,400 to $324,000
a ten fold increase... wow. its official USA Oligarchy corp is running this ship aground.
yeah, like we needed other proofs |
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Mastercard head of SE Asia goes all out with every myth, stereotype and piece of FUD he could possibly fit into 4.30 of attacking bitcoin. This is scripted propaganda and it is excellent to watch. It really shows how worried they are that they have to make such an anti bitcoin informerci that can easily be taken apart. The part about what their core business is shows just how stupid they think their customers are https://m.youtube.com/watch?feature=youtu.be&v=bO4jHXjCXw8".. ensuring greater transparency [...] in the way people live their life..." "Why somebody need to be anonymous? I certainly don't want somebody mining technology or mining financial services away from my control." Fuck you Mr. Matthew Driver, you are dangerous. What can I say? I concur with you. They aim to eliminate cash entirely, be it electronic or not, and move toward a world based on their electronic payment system. Wow. Every time I hear something like this I wonder how they can be so full of themselves. Of course Mastercard wants "transparency". Not for themselves of course! No, the details of their internal business will be kept private. But YOUR daily business will be monitored, data-mined, and controlled by banks and payment processors. See, it's TRANSPARENT! Transparent is such a nice word. At least he barely makes the effort to conceal that mastercard wants to destroy financial privacy. I think it's "funny": https://i.imgur.com/PdfpxEV.jpgcourtesy of @ThrowAway1d52e8d |
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Mastercard head of SE Asia goes all out with every myth, stereotype and piece of FUD he could possibly fit into 4.30 of attacking bitcoin. This is scripted propaganda and it is excellent to watch. It really shows how worried they are that they have to make such an anti bitcoin informerci that can easily be taken apart. The part about what their core business is shows just how stupid they think their customers are https://m.youtube.com/watch?feature=youtu.be&v=bO4jHXjCXw8".. ensuring greater transparency [...] in the way people live their life..." "Why somebody need to be anonymous? I certainly don't want somebody mining technology or mining financial services away from my control." Fuck you Mr. Matthew Driver, you are dangerous. What can I say? I concur with you. They aim to eliminate cash entirely, be it electronic or not, and move toward a world based on their electronic payment system. Wow. Every time I hear something like this I wonder how they can be so full of themselves. |
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Vitalik is brilliant and understands code. Unfortunately, he doesn't fully understand money or human nature. I think that comes more with age/experience. Yep you're right. Though, I have to say that reading his blog posts is always stimulating (lately he was quite prolific, 4 posts on ethereum blog in Nov alone). E.g. after having read his "The Search for a Stable Cryptocurrency" I was eventually barely able to understand what "seignorage shares" is |
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I used bitcoind and json simply for reasons of consistency. Why use sx or pybtctools? Easier, no need for blockchain, diversity, curiosity?
I do not define myself as a smart person, but I dare say that diversity is fundamental. As smooth already said a few posts ago diversity brings you anti-fragility. (if you didn't read Nassim N. Taleb's work yet, look at: http://www.fooledbyrandomness.com. it's worthy imo.) |
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Now I almost miss talking about Side Chains.
LOLed so hard |
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scoping a few rock samples off the face of an asteroid != mining Adam you're back, I'm glad. I was worried I feel better now. |
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It's a long way down for gold IMO
Eventually I found out somehing both you and cypher agree on :-) |
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