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Signing order for m-of-n transactions Development & Technical Discussion
https://github.com/bitcoin/bitcoin/blob/b01a435c34f0669affece2b3d90f92c347588d69…
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n/a | hhanh00 | January 27, 2015, 03:21:05 PM |
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How are UTXOs stored? Development & Technical Discussion
There is one more "if" though: the merchant must be directly connected to one of…
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n/a | hhanh00 | January 26, 2015, 05:51:50 AM |
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How are UTXOs stored? Development & Technical Discussion
Please describe step by step the actual attack, which things would the attack do…
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n/a | hhanh00 | January 26, 2015, 04:03:54 AM |
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A minimal full node client in F# Wallet software
I'm not sure but they seem to be focused on the client side: creating transactio…
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n/a | hhanh00 | January 25, 2015, 12:59:49 PM |
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Are BTC Devs Doing Enough To Encourage Adoption of BTC? Development & Technical Discussion
I'm not a big fan of this approach because a third party service owns one of you…
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n/a | hhanh00 | January 25, 2015, 11:19:05 AM |
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Hard forked coin Development & Technical Discussion
Would there be an interest in creating a sidechain or altcoin that implements al…
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n/a | hhanh00 | January 25, 2015, 06:14:02 AM |
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A minimal full node client in F# Wallet software
Thanks, I've added the GPL v3 license.
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n/a | hhanh00 | January 25, 2015, 05:51:38 AM |
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Are BTC Devs Doing Enough To Encourage Adoption of BTC? Development & Technical Discussion
Quote2FA is simply 2-Factor-Authentication. It's a method of authentication that…
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n/a | hhanh00 | January 25, 2015, 02:21:21 AM |
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Are BTC Devs Doing Enough To Encourage Adoption of BTC? Development & Technical Discussion
The guy gets shot down because 2FA isn't a suitable solution. It's meant to prot…
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n/a | hhanh00 | January 25, 2015, 01:58:43 AM |
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Is there any full node implementation 100% compatible with the core client? Development & Technical Discussion
A vast majority of the nodes is running a version or another of the core client.…
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n/a | hhanh00 | January 23, 2015, 09:56:02 PM |
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Compiling secp256k1 without makefile Development & Technical Discussion
Thanks, took me a while to wrap my head around all the config options, but I fin…
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n/a | hhanh00 | January 23, 2015, 10:54:51 PM |
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Is there any full node implementation 100% compatible with the core client? Development & Technical Discussion
Well - in my opinion, it's not a sustainable long term situation. I understand t…
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n/a | hhanh00 | January 23, 2015, 10:13:11 AM |
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I love bitcoin but there are some concerns (zero difficulty in the early days) Bitcoin Discussion
Create the genesis block, Mine one million trillion bitcoins and transfer them t…
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n/a | hhanh00 | January 23, 2015, 08:17:44 AM |
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Compiling secp256k1 without makefile Development & Technical Discussion
Ah. I was not aware of this change. Without makefile, I remember I could build u…
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n/a | hhanh00 | January 23, 2015, 03:51:36 AM |
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Block size Development & Technical Discussion
I don't think your scenario is plausible but you are entitled to your opinions.
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n/a | hhanh00 | January 23, 2015, 03:46:23 AM |
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Block size Development & Technical Discussion
You are technically correct. But imagine this: now over 95% of hashing power dec…
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n/a | hhanh00 | January 23, 2015, 02:11:40 AM |
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Compiling secp256k1 without makefile Development & Technical Discussion
You can get away from using make for secp256k1 but the dependencies will be hard…
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n/a | hhanh00 | January 23, 2015, 02:05:11 AM |
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A minimal full node client in F# Wallet software
Bitcoin full node in F#An alternative full node bitcoin implementation in F#. Th…
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n/a | hhanh00 | January 21, 2015, 10:35:59 AM |
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Will block creation stall if too many miners suspend operation? Development & Technical Discussion
Miners are more likely to include a transaction with a higher fee. Therefore if…
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n/a | hhanh00 | January 20, 2015, 12:11:50 AM |
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Will block creation stall if too many miners suspend operation? Development & Technical Discussion
Do miners replace a transaction with one that has a greater fee? I think they do…
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n/a | hhanh00 | January 19, 2015, 11:24:45 PM |
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Is there any full node implementation 100% compatible with the core client? Development & Technical Discussion
Mmmm - well, it bootstraps, syncs and validates the blockchain. It passes the ac…
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n/a | hhanh00 | January 19, 2015, 05:57:26 AM |
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Is there any full node implementation 100% compatible with the core client? Development & Technical Discussion
Good advice but that defeats the reason I'm running my node. I'd like something…
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n/a | hhanh00 | January 19, 2015, 03:08:43 AM |
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Fake block timestamps can cause a temporary fork? Development & Technical Discussion
Yes, it's done in CheckBlockHeader called from CheckBlock preventing the block f…
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n/a | hhanh00 | January 18, 2015, 03:24:46 AM |
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Fake block timestamps can cause a temporary fork? Development & Technical Discussion
Orphan blocks are a different case than an 2hr shift. When dealing with bitcoin…
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n/a | hhanh00 | January 17, 2015, 09:42:10 PM |
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Is provoking a fork on purpose a good thing ? Development & Technical Discussion
First of all, I don't think they are many people who do not rely on bitcoin core…
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n/a | hhanh00 | January 17, 2015, 02:09:51 AM |
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Which kind of attack could be executed if SHA-256 would be broken? Development & Technical Discussion
In a classical collision attack, you don't get to choose the messages. You found…
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n/a | hhanh00 | January 16, 2015, 01:14:49 AM |
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Which kind of attack could be executed if SHA-256 would be broken? Development & Technical Discussion
If SHA-256 is broken in such a way that I have an algorithm that instantly tells…
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n/a | hhanh00 | January 15, 2015, 12:33:55 PM |
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Is there any full node implementation 100% compatible with the core client? Development & Technical Discussion
@grau & @justus, no offense but your debate is quite off-topic. If you must disc…
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n/a | hhanh00 | January 14, 2015, 12:29:13 PM |
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Is there any full node implementation 100% compatible with the core client? Development & Technical Discussion
I ran Matt's test harness on bitcoin core 0.9.3 and an assertion was raised. The…
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n/a | hhanh00 | January 14, 2015, 12:25:54 PM |
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Is there any full node implementation 100% compatible with the core client? Development & Technical Discussion
You could be right, but if that's the case then either these alternate implement…
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n/a | hhanh00 | January 14, 2015, 12:27:05 AM |
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Is there any full node implementation 100% compatible with the core client? Development & Technical Discussion
I think the best answer is "we don't know". Even bitcoin core has been found to…
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n/a | hhanh00 | January 13, 2015, 10:06:41 AM |
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Is there any full node implementation 100% compatible with the core client? Development & Technical Discussion
Compatible in what way? RPC, P2P, consensus code?consensus code
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n/a | hhanh00 | January 13, 2015, 09:07:01 AM |
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Is there any full node implementation 100% compatible with the core client? Development & Technical Discussion
100%... not 99.999%. I know it's very difficult. Do the miners actually use bitc…
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n/a | hhanh00 | January 13, 2015, 04:46:31 AM |
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Can you create a Bitcoin address manually? Development & Technical Discussion
QuoteOr was there some way of assigning bit values to the cards? I left it out…
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n/a | hhanh00 | January 13, 2015, 02:39:06 AM |
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Exposing private key by signing the same message twice? Development & Technical Discussion
@johoe: sorry, didn't want to steal your post. I waited 30mn Just a precision -…
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n/a | hhanh00 | January 12, 2015, 11:10:16 AM |
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Exposing private key by signing the same message twice? Development & Technical Discussion
Only, if the k values are . . . not independent (e.g. first k is random, second…
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n/a | hhanh00 | January 12, 2015, 11:02:46 AM |
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Is this transaction bad? Bitcoin Technical Support
The signature doesn't check out. How did you make it?txHash should be "73b3b2795…
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n/a | hhanh00 | January 11, 2015, 09:14:21 PM |
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Bitstamp & Bitgo Service Discussion
The multi-sig is not on the part of the user, it is between Bitstamp and BitGo.…
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n/a | hhanh00 | January 11, 2015, 08:54:05 AM |
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6 Bitcoins lost, Showing minus one confirmation after 10 hours. Electrum
I know there is no they I am just making figure of speech, you were missing the…
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n/a | hhanh00 | January 11, 2015, 02:18:42 AM |
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Is it possible to keep non-transaction data out of a blockchain? Development & Technical Discussion
x = SHA-256(offchain data)?So you can refer to arbitrary size data, right?
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n/a | hhanh00 | January 11, 2015, 01:04:20 AM |
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Bitstamp & Bitgo Service Discussion
Are you sure? Because their integration with BitGo is a brand new thing and what…
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n/a | hhanh00 | January 11, 2015, 12:28:01 AM |
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Bitstamp & Bitgo Service Discussion
Quick question - not sure if it belongs here thoughOnce you move BTC to multisig…
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n/a | hhanh00 | January 10, 2015, 11:57:02 PM |
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Why is BTC dev non-existent? Bitcoin Discussion
And bitcoin core bitcoin world.
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n/a | hhanh00 | January 09, 2015, 03:06:28 AM |
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Why is BTC dev non-existent? Bitcoin Discussion
Shameless plug: I have started a blog about bitcoin dev @ http://bitsy-itsy.ddns…
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n/a | hhanh00 | January 09, 2015, 02:00:44 AM |
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Tech question: creating a Bitcoin private key with FileMaker or Access? Development & Technical Discussion
Source?https://www.random.org/analysis/Thanks. To be 100% clear, it's not specif…
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n/a | hhanh00 | January 08, 2015, 10:56:39 AM |
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Tech question: creating a Bitcoin private key with FileMaker or Access? Development & Technical Discussion |
n/a | hhanh00 | January 08, 2015, 06:04:38 AM |
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Tech question: creating a Bitcoin private key with FileMaker or Access? Development & Technical Discussion
They are pseudo random number generators. Some of better than others. For a data…
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n/a | hhanh00 | January 07, 2015, 10:35:00 PM |
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spent tx Development & Technical Discussion |
n/a | hhanh00 | January 07, 2015, 10:27:22 PM |
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Tech question: creating a Bitcoin private key with FileMaker or Access? Development & Technical Discussion
Please excuse the very beginner level technical question here, but is there a wa…
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n/a | hhanh00 | January 07, 2015, 01:31:39 PM |
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To whoever complains about slow confirmation times Bitcoin Discussion
Oops - another thread on this topic already.
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n/a | hhanh00 | January 07, 2015, 12:47:04 PM |
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To whoever complains about slow confirmation times Bitcoin Discussion
5 blocks in 10mn!! Lady luck is on our side this time.337945 to 337950
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n/a | hhanh00 | January 07, 2015, 12:42:30 PM |
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How do you download a specific block number ? Development & Technical Discussion
I don't know any tool that does that out of the box - I think you will need to w…
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n/a | hhanh00 | January 07, 2015, 12:31:57 PM |
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How do you download a specific block number ? Development & Technical Discussion
I tried getblock "hash", but it seems like I can only get block that I already h…
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n/a | hhanh00 | January 07, 2015, 12:10:23 PM |
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How do you download a specific block number ? Development & Technical Discussion
Yes, by their hashes using getdata in the raw protocol or getblock in the client…
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n/a | hhanh00 | January 06, 2015, 11:50:34 PM |
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[Question] Why don't we have new local wallets Development & Technical Discussion
Developing a new wallet is hard because it has to be flawless or people will los…
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n/a | hhanh00 | January 05, 2015, 08:54:16 PM |
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Proposal for self-pruning Blockchain Development & Technical Discussion
I'm not sure that what the OP is suggesting is what you think he is suggesting,…
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n/a | hhanh00 | January 05, 2015, 10:21:42 AM |
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Proposal for self-pruning Blockchain Development & Technical Discussion
No need to be so finicky about the terminologies.What the OP suggest is to intro…
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n/a | hhanh00 | January 05, 2015, 09:59:30 AM |
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A little naivety Hardware
It just occurred to me that the OP could be talking about building a mining data…
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n/a | hhanh00 | January 05, 2015, 09:31:15 AM |
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A little naivety Hardware
As far as I understand the question, it's about the chip design. Not the electri…
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n/a | hhanh00 | January 05, 2015, 08:15:42 AM |
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A little naivety Hardware
Hello random people,I was wondering how many times has this question which I am…
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n/a | hhanh00 | January 05, 2015, 08:01:14 AM |
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Proposal for self-recycling Blockchain Development & Technical Discussion
QuoteThe only unsolved part for now, is what to do with older hashes, and merkle…
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n/a | hhanh00 | January 04, 2015, 06:05:55 AM |
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Chances to find HD wallet with fund Development & Technical Discussion
Thus instead of probability of 1/3.4028×10^38 to find an account, you now have 1…
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n/a | hhanh00 | January 03, 2015, 11:41:25 AM |
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bitcoinjs-lib and related repos are not 100% RFC6979 compliant (only 99.999...%) Development & Technical Discussion
Ah yes! You are right. I used the wrong modulus.
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n/a | hhanh00 | January 03, 2015, 10:40:19 AM |
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bitcoinjs-lib and related repos are not 100% RFC6979 compliant (only 99.999...%) Development & Technical Discussion
I got confused. As I said earlier, r = 0 isn't the same as the point at infinity…
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n/a | hhanh00 | January 03, 2015, 08:47:03 AM |
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bitcoinjs-lib and related repos are not 100% RFC6979 compliant (only 99.999...%) Development & Technical Discussion
Ah ok. R can't be 0 if k is in the right range. S can be 0 but should be retried…
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n/a | hhanh00 | January 03, 2015, 07:28:01 AM |
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bitcoinjs-lib and related repos are not 100% RFC6979 compliant (only 99.999...%) Development & Technical Discussion
I think you got something confused. k = 0 isn't the same as r=0 or s=0. The poin…
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n/a | hhanh00 | January 03, 2015, 04:21:51 AM |
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Fastest, least-likely-to-be-subtly-broken way to make lots of addresses offline Development & Technical Discussion
It's still ok if you don't release the master public key but to be extra careful…
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n/a | hhanh00 | January 03, 2015, 02:17:22 AM |
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The next step in going against "conventional wisdom" - Create your own Crypto! Bitcoin Discussion
To me it sounds like the title is "The next step in going against "conventional…
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n/a | hhanh00 | January 03, 2015, 01:54:51 AM |
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The next step in going against "conventional wisdom" - Create your own Crypto! Bitcoin Discussion
Well - then the receiver has to carry a database of nonces with him wherever he…
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n/a | hhanh00 | January 03, 2015, 01:04:46 AM |
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The next step in going against "conventional wisdom" - Create your own Crypto! Bitcoin Discussion
This raises a lot of red flags. OTP is used as an example of perfect secrecy cip…
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n/a | hhanh00 | January 03, 2015, 12:47:57 AM |
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bitcoinjs-lib and related repos are not 100% RFC6979 compliant (only 99.999...%) Development & Technical Discussion
Yes, but first you code the general case, and then you can simplify. I'm not abo…
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n/a | hhanh00 | January 03, 2015, 12:39:24 AM |
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The next step in going against "conventional wisdom" - Create your own Crypto! Bitcoin Discussion
Good points - I am not inventing a new type of cypher.The idea of a OTP is at le…
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n/a | hhanh00 | January 03, 2015, 12:21:26 AM |
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bitcoinjs-lib and related repos are not 100% RFC6979 compliant (only 99.999...%) Development & Technical Discussion
@dabura667: did you test it against that example?They didn't have any secp256k1…
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n/a | hhanh00 | January 02, 2015, 08:55:14 PM |
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bitcoinjs-lib and related repos are not 100% RFC6979 compliant (only 99.999...%) Development & Technical Discussion
I thought the RFC had an example of such a case in section A1. Am I mistaken or…
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n/a | hhanh00 | January 02, 2015, 09:36:43 AM |
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The best way to create an offline wallet? Questions. Development & Technical Discussion
It kinda depends on how convenient vs secure you want it. If it's for pure stora…
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n/a | hhanh00 | December 31, 2014, 11:53:36 AM |
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Need help understanding a transaction Development & Technical Discussion
Then do what Danny told you.Essentially I use 'blockchain.info' to debug me own…
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n/a | hhanh00 | December 30, 2014, 02:32:53 AM |
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Need help understanding a transaction Development & Technical Discussion
I don't see why you want to decode these bogus pub keys. They are obviously inva…
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n/a | hhanh00 | December 29, 2014, 11:42:39 PM |
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NBitcoin : Almost full bitcoin implementation in .NET Wallet software
Got it - thanks
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n/a | hhanh00 | December 29, 2014, 09:28:32 AM |
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NBitcoin : Almost full bitcoin implementation in .NET Wallet software
Thanks for your quick response, another question - is there support for the main…
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n/a | hhanh00 | December 28, 2014, 10:23:32 PM |
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NBitcoin : Almost full bitcoin implementation in .NET Wallet software
Is it possible to run it as a full node implementation? Basically with tx relay…
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n/a | hhanh00 | December 28, 2014, 01:26:42 PM |
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OMG did I just loose $4000? electrum not working on mac! Electrum
Electrum works differently than bitcoin-qt. It doesn't randomly generates new ad…
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n/a | hhanh00 | December 28, 2014, 02:29:07 AM |
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I'm so tired of seeing the complaint on block confirmation times. Here's why. Bitcoin Discussion
I was talking about the main mining pool. I meant centralized - not mature. You…
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n/a | hhanh00 | December 28, 2014, 01:29:46 AM |
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I'm so tired of seeing the complaint on block confirmation times. Here's why. Bitcoin Discussion
I was talking about the main mining pool. I meant centralized - not mature. You…
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n/a | hhanh00 | December 27, 2014, 11:55:48 PM |
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I'm so tired of seeing the complaint on block confirmation times. Here's why. Bitcoin Discussion
The network is more centralized than we think it is. Once the first transaction…
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n/a | hhanh00 | December 27, 2014, 11:15:39 PM |
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I'm so tired of seeing the complaint on block confirmation times. Here's why. Bitcoin Discussion
Where do you get the 99% figure? In my experience, every merchant waits for at l…
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n/a | hhanh00 | December 25, 2014, 01:43:02 PM |
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I'm so tired of seeing the complaint on block confirmation times. Here's why. Bitcoin Discussion
Where do you get the 99% figure? In my experience, every merchant waits for at l…
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n/a | hhanh00 | December 24, 2014, 11:35:02 PM |
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Creating a bootstrap.dat from my full node? Development & Technical Discussion
How about https://github.com/bitcoin/bitcoin/tree/master/contrib/linearize
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n/a | hhanh00 | December 24, 2014, 04:28:59 AM |
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Encrypting Messages to Bitcoin Addresses Development & Technical Discussion
It's not safe to do this, you'd better use EC IES. First of all, there is no rea…
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n/a | hhanh00 | December 22, 2014, 02:04:17 AM |
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A challenge to the idea that no-one can create a good brainwallet Bitcoin Discussion
Once you reveal your method for producing the pass phrase we can see that many f…
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n/a | hhanh00 | December 22, 2014, 12:35:18 AM |
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Can we decide on RFC 6979 or an equilvalent before we have more issues? Development & Technical Discussion
But I was wrong, they actually provide a way to check that the firmware isn't t…
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n/a | hhanh00 | December 21, 2014, 09:22:29 PM |
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A challenge to the idea that no-one can create a good brainwallet Bitcoin Discussion
You can use anything for a brainwallet. It obviously includes seed words or a lo…
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n/a | hhanh00 | December 21, 2014, 09:26:52 AM |
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Can we decide on RFC 6979 or an equilvalent before we have more issues? Development & Technical Discussion
Picking a signature scheme based primarily on your ability to suppress side chan…
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n/a | hhanh00 | December 20, 2014, 10:19:46 PM |
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Can we decide on RFC 6979 or an equilvalent before we have more issues? Development & Technical Discussion
If you did that, anyone can compute k and the secret key.
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n/a | hhanh00 | December 20, 2014, 05:40:30 AM |
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nslookup for testnet peers Development & Technical Discussion
Did you tryCode: vSeeds.push_back(CDNSSeedData("alexykot.me", "testnet-se…
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n/a | hhanh00 | December 19, 2014, 09:57:20 PM |
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Can we decide on RFC 6979 or an equilvalent before we have more issues? Development & Technical Discussion
These quantum signature schemes don't help solving the problem. A malicious impl…
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n/a | hhanh00 | December 19, 2014, 09:36:34 PM |
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Can we decide on RFC 6979 or an equilvalent before we have more issues? Development & Technical Discussion
If not ECDSA then what (RSA)?DSA has the same problem. I don't know what would w…
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n/a | hhanh00 | December 19, 2014, 12:40:29 PM |
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Can we decide on RFC 6979 or an equilvalent before we have more issues? Development & Technical Discussion
Huh ... many wallets already have this RFC implemented: nbitcoin, bitcoinj, libb…
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n/a | hhanh00 | December 19, 2014, 11:46:48 AM |
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Help parsing blockchain.info transactions... Service Discussion
To cover all cases, you need to scan both inputs and outputs for your address. T…
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n/a | hhanh00 | December 19, 2014, 11:33:24 AM |
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airgap wallet not totally safe? Bitcoin Technical Support
To Op, I was replying to your first message. It's true. Air gap wallets can leak…
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n/a | hhanh00 | December 19, 2014, 07:53:11 AM |
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airgap wallet not totally safe? Bitcoin Technical Support
A modified signing code can leak all your data onto the blockchain - airgap wall…
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n/a | hhanh00 | December 19, 2014, 03:32:59 AM |
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