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Deterministic wallets Development & Technical Discussion
There I generate the public addresses in my offline wallet and them move them on…
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n/a | piotr_n | August 26, 2013, 10:58:40 AM |
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Deterministic wallets Development & Technical Discussion
Initially I had thought that keeping "B_secret" secret does prevent others from…
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n/a | piotr_n | August 26, 2013, 08:50:51 AM |
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Deterministic wallets Development & Technical Discussion
So if someone gives me an extended public key, I can generate public keys to add…
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n/a | piotr_n | August 26, 2013, 08:20:26 AM |
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Deterministic wallets Development & Technical Discussion
What do you mean by || ? If that is the OR operator, then you are going to set…
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n/a | piotr_n | August 25, 2013, 02:42:54 PM |
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Gocoin - bitcoin client with a deterministic cold wallet Wallet software
Thanks.I've actually made a huge progress ever since I published this topic - lo…
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n/a | piotr_n | August 25, 2013, 02:39:00 PM |
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Deterministic wallets Development & Technical Discussion
This topic is 15 pages long, so please forgive me it it was discussed already.Ha…
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n/a | piotr_n | August 25, 2013, 02:04:19 PM |
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[ANNOUNCE] Android key rotation Bitcoin Discussion
So Google discourages seeding SecureRandom .... Why ? Maybe the default implemen…
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n/a | piotr_n | August 12, 2013, 11:52:52 AM |
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[ANNOUNCE] Android key rotation Bitcoin Discussion
Seed with accelerometer, gyroscope, compass, barometer, or GPS if available?But…
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n/a | piotr_n | August 12, 2013, 11:57:52 AM |
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[ANNOUNCE] Android key rotation Bitcoin Discussion
How are the patches working around the problem?Are they using a different source…
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n/a | piotr_n | August 12, 2013, 11:32:57 AM |
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NY regulator memo: Notice of Inquiry on Virtual Currencies Bitcoin Discussion
Ehhhh.... you and your country's national security - ever lasting excuse for any…
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n/a | piotr_n | August 12, 2013, 09:40:15 AM |
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[ANNOUNCE] Android key rotation Bitcoin Discussion
Oh yeah, why the developers never think about it.. using sensors as random gener…
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n/a | piotr_n | August 12, 2013, 09:54:43 AM |
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Bad signatures leading to 55.82152538 BTC theft (so far) Development & Technical Discussion
I have to say, I'm somewhat disappointed in the devs not checking to ensure that…
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n/a | piotr_n | August 12, 2013, 07:51:33 AM |
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[ANNOUNCE] Android key rotation Bitcoin Discussion
Got error 157 'Unknown error code' from NDBCLUSTERwhen trying to check sigs on b…
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n/a | piotr_n | August 12, 2013, 05:41:59 AM |
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[ANNOUNCE] Android key rotation Bitcoin Discussion
as far as I know it's only very recently that it was found that Android PRNG als…
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n/a | piotr_n | August 12, 2013, 05:39:41 AM |
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[ANNOUNCE] Android key rotation Bitcoin Discussion
I discovered this flaw and made it known to Mike Hearn, Andreas Schildbach and B…
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n/a | piotr_n | August 12, 2013, 05:08:33 AM |
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Bad signatures leading to 55.82152538 BTC theft (so far) Development & Technical Discussion
A forum newbie emailed me and suggested this link would be informative for the t…
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n/a | piotr_n | August 12, 2013, 02:27:54 AM |
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[ANNOUNCE] Android key rotation Bitcoin Discussion
Ive always thought computers could not generate random numbers. I once won a…
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n/a | piotr_n | August 11, 2013, 02:23:19 PM |
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[ANNOUNCE] Android key rotation Bitcoin Discussion
This vulnerability is yet another reason address reuse in Bitcoin clients must b…
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n/a | piotr_n | August 11, 2013, 01:45:00 PM |
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[ANNOUNCE] Android key rotation Bitcoin Discussion
pink is a really crappy color, fwiw.indeed - it's barely visible.
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n/a | piotr_n | August 11, 2013, 12:58:14 PM |
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Bad signatures leading to 55.82152538 BTC theft (so far) Development & Technical Discussion
I think the first step for everyone using the apps in question transfer their fu…
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n/a | piotr_n | August 11, 2013, 12:13:02 PM |
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[ANNOUNCE] Android key rotation Bitcoin Discussion
done and done, thanks to you and this community for such watchfulness and timeli…
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n/a | piotr_n | August 11, 2013, 11:56:12 AM |
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Bad signatures leading to 55.82152538 BTC theft (so far) Development & Technical Discussion
Hello,A few days ago user Xeno-Genesis alerted us to some weaknesses in the defa…
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n/a | piotr_n | August 11, 2013, 11:32:46 AM |
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Bad signatures leading to 55.82152538 BTC theft (so far) Development & Technical Discussion
I think the first step for everyone using the apps in question transfer their fu…
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n/a | piotr_n | August 11, 2013, 10:16:31 AM |
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Bad signatures leading to 55.82152538 BTC theft (so far) Development & Technical Discussion
So -from a practical point of view- how can users use the Bitcoin Wallet/Blockch…
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n/a | piotr_n | August 11, 2013, 10:06:26 AM |
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Bad signatures leading to 55.82152538 BTC theft (so far) Development & Technical Discussion
If a wallet were to keep track of the k values per address, could that then miti…
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n/a | piotr_n | August 11, 2013, 10:01:57 AM |
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Bad signatures leading to 55.82152538 BTC theft (so far) Development & Technical Discussion
I'm not a java expert, but I believe there is probably something going wrong ins…
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n/a | piotr_n | August 11, 2013, 09:36:20 AM |
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Bad signatures leading to 55.82152538 BTC theft (so far) Development & Technical Discussion
If one has a screwed up RNG, not reusing addresses does not make him anyhow safe…
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n/a | piotr_n | August 11, 2013, 07:52:35 AM |
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Bad signatures leading to 55.82152538 BTC theft (so far) Development & Technical Discussion
Even proper reuse of ECDSA private key makes it less secure. Satoshi did very go…
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n/a | piotr_n | August 11, 2013, 07:57:12 AM |
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Bad signatures leading to 55.82152538 BTC theft (so far) Development & Technical Discussion
Yeah. The thesis that reusing an address is not "using Bitcoin correctly", is ki…
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n/a | piotr_n | August 11, 2013, 07:33:26 AM |
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Bad signatures leading to 55.82152538 BTC theft (so far) Development & Technical Discussion
the reuse of the same k value allows anyone to be able to recover the private ke…
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n/a | piotr_n | August 11, 2013, 06:49:08 AM |
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[ANN] TorBroker - Fund your account in Bitcoin, trade ~1000 real stocks and ETFs Gambling
This seems risky located on TOR and all.Maybe that's why it's in the Gambling se…
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n/a | piotr_n | August 10, 2013, 03:36:44 AM |
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Network time Development & Technical Discussion
AFAIK the only place where the time matters is when accepting a new block - it's…
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n/a | piotr_n | July 30, 2013, 10:26:27 AM |
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Deterministic wallets Development & Technical Discussion
So if someone gives me an extended public key, I can generate public keys to add…
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n/a | piotr_n | July 28, 2013, 10:52:26 AM |
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Deterministic wallets Development & Technical Discussion
So if someone gives me an extended public key, I can generate public keys to add…
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n/a | piotr_n | July 30, 2013, 08:03:04 AM |
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SHA-2* family maybe broken in several years. Development & Technical Discussion
There is a huge difference between "weakness" and "broken".In general: weakness…
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n/a | piotr_n | July 30, 2013, 07:54:37 AM |
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bitcoin protocol magic numbers and reason Development & Technical Discussion
max tx size is 100kb, not 10000 - and why would any sane person need more?even 4…
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n/a | piotr_n | July 28, 2013, 12:35:30 PM |
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Is this transaction valid? Development & Technical Discussion
in general, before you can confirm, mine a tx in deep enough, it is equally vali…
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n/a | piotr_n | July 28, 2013, 12:17:03 PM |
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any idea how to create a site or program that gets API info from bitcoin sites? Development & Technical Discussion
I guess there are plenty of ideas to do such kind of things Good lucku with your…
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n/a | piotr_n | July 28, 2013, 12:11:22 PM |
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Is this transaction valid? Development & Technical Discussion
The input should be http://blockchain.info/fr/tx/6890e56c36b48811cbb38cb21d67a98…
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n/a | piotr_n | July 28, 2013, 12:09:17 PM |
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bitcoin protocol magic numbers and reason Development & Technical Discussion
max tx size is 100kb, not 10000 - and why would any sane person need more?even 4…
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n/a | piotr_n | July 28, 2013, 12:06:35 PM |
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Is this transaction valid? Development & Technical Discussion
The input should be http://blockchain.info/fr/tx/6890e56c36b48811cbb38cb21d67a98…
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n/a | piotr_n | July 28, 2013, 12:02:12 PM |
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Is this transaction valid? Development & Technical Discussion
There is no known inputCode:Transaction details (for your information):1 Input(s…
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n/a | piotr_n | July 28, 2013, 11:56:44 AM |
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Deterministic wallets Development & Technical Discussion
so that is why the secret (being part of the extended public key) is basically r…
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n/a | piotr_n | July 28, 2013, 11:43:18 AM |
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bitcoin protocol magic numbers and reason Development & Technical Discussion
I guess you forgot the actual magic number: {0xF9,0xBE,0xB4,0xD9}You ask why suc…
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n/a | piotr_n | July 28, 2013, 05:37:43 AM |
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Why nobody's discussing this? Development & Technical Discussion
Mining is the voting - everyone knows that. That's why the miner ostracism was s…
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n/a | piotr_n | July 28, 2013, 05:41:51 AM |
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Why nobody's discussing this? Development & Technical Discussion
I'd welcome some paper though, that would allow some kind of coin mixing service…
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n/a | piotr_n | July 27, 2013, 02:14:00 PM |
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Why nobody's discussing this? Development & Technical Discussion
Mining is the voting - everyone knows that.And as for the homework I should supp…
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n/a | piotr_n | July 27, 2013, 02:08:55 PM |
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Why nobody's discussing this? Development & Technical Discussion
as long as I agree with the keep it simple idea, the others like "sliding blockc…
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n/a | piotr_n | July 27, 2013, 01:44:46 PM |
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How to watch confirmations on set of transactions? Development & Technical Discussion
I just want to know when a few transactions I will make have hit 4 confirmations…
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n/a | piotr_n | July 26, 2013, 06:25:38 PM |
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How to watch confirmations on set of transactions? Development & Technical Discussion
I just want to know when a few transactions I will make have hit 4 confirmations…
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n/a | piotr_n | July 26, 2013, 06:13:53 PM |
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How to watch confirmations on set of transactions? Development & Technical Discussion
I mean, I dont want to be mean, but if you explain you application maybe we coul…
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n/a | piotr_n | July 26, 2013, 02:49:06 PM |
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Best way to extract addresses from sigScript and PkScript? Development & Technical Discussion
In that case, why do you bother extracting the pubkey? The satoshi client just…
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n/a | piotr_n | July 26, 2013, 02:41:06 PM |
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How to watch confirmations on set of transactions? Development & Technical Discussion
I just wonder, why do you even need it?Watching a set of transactions and their…
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n/a | piotr_n | July 26, 2013, 02:37:53 PM |
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Best way to extract addresses from sigScript and PkScript? Development & Technical Discussion
I guess you only need to analyze the data from pk_scripts, from unspent outputs…
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n/a | piotr_n | July 26, 2013, 02:20:30 PM |
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Best way to extract addresses from sigScript and PkScript? Development & Technical Discussion
Hi everyone,Is there a best practice method of extracting addresses from the sig…
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n/a | piotr_n | July 26, 2013, 02:08:37 PM |
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What is up with this SIGHASH_SINGLE and nOut out of range? Development & Technical Discussion
FWIW I'd suggest you consider removing script evaluation from your library entir…
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n/a | piotr_n | July 24, 2013, 01:01:48 PM |
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What is up with this SIGHASH_SINGLE and nOut out of range? Development & Technical Discussion
We do that already. This issue with SIGHASH_SINGLE was documented in the unittes…
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n/a | piotr_n | July 24, 2013, 12:17:28 PM |
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BREAKING: SEC Charges pirateat40 With Running Bitcoin-Denominated Ponzi Scheme Bitcoin Discussion
The only question is: where is the money?Someone obviously took it, and IMO pira…
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n/a | piotr_n | July 23, 2013, 02:08:07 PM |
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Reasons to keep 10 min target blocktime? Development & Technical Discussion
The main reason why the 10 min doesn't change is that the network does not agree…
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n/a | piotr_n | July 23, 2013, 12:36:55 PM |
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Secret from combined transaction ids Development & Technical Discussion
hash of the combined transactions - indeed. and good solution, btw.but I bet, th…
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n/a | piotr_n | July 23, 2013, 12:31:13 PM |
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Secret from combined transaction ids Development & Technical Discussion
But what will be the winning criteria?If you make it like "whichever hash is low…
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n/a | piotr_n | July 23, 2013, 12:12:52 PM |
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What is up with this SIGHASH_SINGLE and nOut out of range? Development & Technical Discussion
Just as a general comment, to anyone reading this: please always, whenever you d…
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n/a | piotr_n | July 23, 2013, 10:53:20 AM |
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What is up with this SIGHASH_SINGLE and nOut out of range? Development & Technical Discussion
Live with it ok, but we need to know what is the good behavior!Doesn't this look…
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n/a | piotr_n | July 23, 2013, 09:08:13 AM |
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What is up with this SIGHASH_SINGLE and nOut out of range? Development & Technical Discussion
I believe Peter created these transactions, and I think that was a good idea. Go…
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n/a | piotr_n | July 23, 2013, 09:05:43 AM |
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What is up with this SIGHASH_SINGLE and nOut out of range? Development & Technical Discussion
Live with it ok, but we need to know what is the good behavior!Doesn't this look…
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n/a | piotr_n | July 23, 2013, 08:28:28 AM |
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What is up with this SIGHASH_SINGLE and nOut out of range? Development & Technical Discussion
https://bitcointalk.org/index.php?topic=260595.0Thx.And sorry for double post.It…
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n/a | piotr_n | July 23, 2013, 08:22:45 AM |
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What is up with this SIGHASH_SINGLE and nOut out of range? Development & Technical Discussion
https://bitcointalk.org/index.php?topic=260595.0Thx.And sorry for double post.It…
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n/a | piotr_n | July 23, 2013, 08:10:43 AM |
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What is up with this SIGHASH_SINGLE and nOut out of range? Development & Technical Discussion
Since yesterday there have been like a few txs, committed into the blockchain, w…
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n/a | piotr_n | July 23, 2013, 07:53:59 AM |
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About the block.nBits Development & Technical Discussion
SetCompact sort of compresses the big 256 integer into a 32 bit value.0x1d00ffff…
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n/a | piotr_n | July 21, 2013, 03:39:21 AM |
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bitcoin client automation Development & Technical Discussion
I'm afraid begging won't help you much.Saying that you have no experience with c…
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n/a | piotr_n | July 20, 2013, 03:43:57 PM |
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Quiz: Are you a Satoshi client guru developer? Development & Technical Discussion
Rather than quizzes, I've been working on enumerating some programming exercises…
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n/a | piotr_n | July 20, 2013, 02:35:04 PM |
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tools for writing to the bitcoin chain Development & Technical Discussion
Hi,I'm looking for any info related to "tools for writing to the bitcoin chain"…
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n/a | piotr_n | July 20, 2013, 02:25:47 PM |
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Buggy CVE-2013-4627 patch, open new vectors of attack Development & Technical Discussion
So are you saying that he actually noticed the attack, and only drew your attent…
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n/a | piotr_n | July 19, 2013, 02:29:28 PM |
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Pywallet: manage your wallets/addresses/keys/tx's Development & Technical Discussion
bitcoin hashes are always in reversed order.somebody came with an idea that lsb…
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n/a | piotr_n | July 19, 2013, 02:10:55 PM |
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Buggy CVE-2013-4627 patch, open new vectors of attack Development & Technical Discussion
BTW, once again I want to raise my unheard voice, that txs with inputs that are…
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n/a | piotr_n | July 19, 2013, 02:05:03 PM |
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Buggy CVE-2013-4627 patch, open new vectors of attack Development & Technical Discussion
Sorry, its a bit long to read, but if you don't mind I have a question already a…
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n/a | piotr_n | July 19, 2013, 01:59:42 PM |
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Pywallet: manage your wallets/addresses/keys/tx's Development & Technical Discussion
Thanks a lot! As the first donator you can ask me any feature you want to be inc…
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n/a | piotr_n | July 19, 2013, 01:29:14 PM |
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Any documentation (other than the code) on the format of the wallet.dat file? Development & Technical Discussion
bestblock = highest block height seen/scanned by clientBTW, I don't think this b…
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n/a | piotr_n | July 19, 2013, 09:54:00 AM |
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Any documentation (other than the code) on the format of the wallet.dat file? Development & Technical Discussion
You really shouldn't mess with the file directly. Treat it like a black box and…
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n/a | piotr_n | July 19, 2013, 09:38:29 AM |
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Bitcoin on Windows using Boost Debug Libraries? Development & Technical Discussion
This got changed quite recently.My guess is that someone was testing with debug…
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n/a | piotr_n | July 19, 2013, 06:03:55 AM |
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ASIC flexibility Hardware
I think you'd have a better chance of getting this answered, asking it in one of…
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n/a | piotr_n | July 19, 2013, 05:57:21 AM |
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Any documentation (other than the code) on the format of the wallet.dat file? Development & Technical Discussion
Still the lack of documentation is kinda sad. It just means countless hours was…
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n/a | piotr_n | July 19, 2013, 05:43:04 AM |
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What is stopping pruning from being added to the qt client? Development & Technical Discussion
We've got a rabid one here.Sorry about that - piotr_n is a bot I wrote to [...]w…
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n/a | piotr_n | July 17, 2013, 08:23:58 AM |
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Exhausting the keypool. Development & Technical Discussion
It's just writing code and it doesn't seem so much of work./me looking forward t…
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n/a | piotr_n | July 18, 2013, 07:22:56 AM |
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Exhausting the keypool (workaround for "watching wallet" in bitcoind) Development & Technical Discussion
Your logic seems solid, but I do not see any question in the OP.Of course bitcoi…
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n/a | piotr_n | July 18, 2013, 11:22:03 AM |
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Exhausting the keypool (workaround for "watching wallet" in bitcoind) Development & Technical Discussion
Process for creating a "watching wallet" using bitcoind:1) On a secure non-publi…
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n/a | piotr_n | July 18, 2013, 04:50:08 AM |
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New Attack Vector Development & Technical Discussion
stop writing code, and sit down and make a standard. Its not that hard, nobody j…
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n/a | piotr_n | July 17, 2013, 01:46:02 PM |
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New Attack Vector Development & Technical Discussion
stop writing code, and sit down and make a standard. Its not that hard, nobody j…
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n/a | piotr_n | July 17, 2013, 01:32:49 PM |
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New Attack Vector Development & Technical Discussion
so what do you propose?
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n/a | piotr_n | July 17, 2013, 01:15:00 PM |
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Exhausting the keypool. Development & Technical Discussion
It's just writing code and it doesn't seem so much of work./me looking forward t…
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n/a | piotr_n | July 17, 2013, 01:12:11 PM |
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New Attack Vector Development & Technical Discussion
yeah, we need a standard. the only question is: who is going to develop a voting…
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n/a | piotr_n | July 17, 2013, 12:41:04 PM |
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Exhausting the keypool. Development & Technical Discussion
What I am grumbling about is that for over two years none of these geniuses had…
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n/a | piotr_n | July 17, 2013, 12:33:00 PM |
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What is stopping pruning from being added to the qt client? Development & Technical Discussion
@justusranvier, I think its a good idea, but rather for bitcoin 3.0IMHO, there i…
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n/a | piotr_n | July 17, 2013, 12:25:15 PM |
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Exhausting the keypool. Development & Technical Discussion
Oh, it's something to me, to grumble about again.Deterministic wallets, that gma…
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n/a | piotr_n | July 17, 2013, 12:19:49 PM |
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New Attack Vector Development & Technical Discussion
yeah, we need a standard. the only question is: who is going to develop a voting…
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n/a | piotr_n | July 17, 2013, 11:42:24 AM |
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New Attack Vector Development & Technical Discussion
Be glad the additional space contains only zeros and not your private key.It cou…
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n/a | piotr_n | July 17, 2013, 11:29:29 AM |
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New Attack Vector Development & Technical Discussion
The satoshi client is only broken if you got that hex as the output of signrawtr…
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n/a | piotr_n | July 17, 2013, 11:14:20 AM |
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New Attack Vector Development & Technical Discussion
wasn't that the guy that put prayers in the blockchain?I think i have trolled hi…
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n/a | piotr_n | July 17, 2013, 11:05:39 AM |
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New Attack Vector Development & Technical Discussion
but the bottom line is: your transaction might get mined after all.send it to lu…
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n/a | piotr_n | July 17, 2013, 10:54:09 AM |
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New Attack Vector Development & Technical Discussion
There is no risk for a hard fork at all right now, by the way. This is just loca…
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n/a | piotr_n | July 17, 2013, 10:46:51 AM |
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