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A basic question Bitcoin Discussion
QuoteIt seems from the descriptions of the various md5 cracks that md5 lacks col…
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n/a | hhanh00 | April 22, 2015, 01:37:18 AM |
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Enforcing 'n' signatories & signing order for m-of-n P2SH Vs. Multisig Development & Technical Discussion
Assuming I have the above correct my question is: With only the information stor…
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n/a | hhanh00 | April 22, 2015, 01:00:42 AM |
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A basic question Bitcoin Discussion
MD5 was pumped a few years ago exactly as sha2 is being pumped now. There are a…
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n/a | hhanh00 | April 20, 2015, 12:26:45 PM |
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A basic question Bitcoin Discussion
@iceThese algorithms are not new. If you had studied cryptography, you would kno…
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n/a | hhanh00 | April 20, 2015, 12:22:53 PM |
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Storing large data in blockchain Development & Technical Discussion
Quote* Why should his data be rejected and not color coins, stealth addresses, o…
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n/a | hhanh00 | April 15, 2015, 10:17:58 AM |
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Storing large data in blockchain Development & Technical Discussion
* The guy who sent the transaction paid the fees for it. Actually, well above th…
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n/a | hhanh00 | April 15, 2015, 09:42:06 AM |
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Is there a payment protocol that can include a physical address? Development & Technical Discussion |
n/a | hhanh00 | April 09, 2015, 03:47:01 AM |
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A basic question Bitcoin Discussion
The question is not whether it is possible. It is. It is only a matter of findin…
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n/a | hhanh00 | March 30, 2015, 11:17:57 PM |
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Difference between a Torrent Network and a Block chain Development & Technical Discussion
My question is moreso if I were to somehow make a blockchain that instead of exc…
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n/a | hhanh00 | March 30, 2015, 10:45:45 PM |
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A basic question Bitcoin Discussion
It would be easy to construct a proof that showed there was some qualitative dif…
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n/a | hhanh00 | March 30, 2015, 10:37:08 PM |
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Why does 256-bit ECC offers equivalent security of 128-bit symmetric encryption? Development & Technical Discussion
It's because the best algo that solves the EC discrete log problem is in O(sqrt(…
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n/a | hhanh00 | March 30, 2015, 08:53:04 PM |
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trustless address lookup for thin-clients Development & Technical Discussion
Yes, it is a very similar idea. The only significant difference is the usage of…
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n/a | hhanh00 | March 30, 2015, 03:52:13 AM |
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Thinking about ways to make it more difficult to link IP address to txn creator. Development & Technical Discussion
Wasn't that fixed 2 years ago?
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n/a | hhanh00 | March 29, 2015, 09:54:10 AM |
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trustless address lookup for thin-clients Development & Technical Discussion
i know such a thing would be hard to pull off, but when the stakes are high the…
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n/a | hhanh00 | March 29, 2015, 08:46:25 AM |
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trustless address lookup for thin-clients Development & Technical Discussion
Looks similar to https://gist.github.com/maaku/2aed2cb628024800044d which seems…
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n/a | hhanh00 | March 29, 2015, 03:41:44 AM |
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"Replace by Fee" Article by Mike Hearn (Very important topic for Bitcoiners) Bitcoin Discussion
Is this implemented on Viacoin (his coin)?
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n/a | hhanh00 | March 28, 2015, 11:19:44 PM |
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Rearranging sig and pubkey order before broadcasting an m-of-n transaction Development & Technical Discussion
There are no dependencies between signatures.
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n/a | hhanh00 | March 27, 2015, 06:13:30 AM |
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Flaw or just a bad debater :( Development & Technical Discussion
Banks spend a lot of money on their IT. The budget of a major bank is in excess…
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n/a | hhanh00 | March 23, 2015, 10:28:14 AM |
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2 BTC bounty for fixing our multi-signature bug in the Bitcore API Development & Technical Discussion
I'm glad I could help and I have received the bounty. Thanks!--h
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n/a | hhanh00 | March 23, 2015, 03:51:22 AM |
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2 BTC bounty for fixing our multi-signature bug in the Bitcore API Development & Technical Discussion
@amaclin, I don't know if you did it on purpose but you had a totally different…
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n/a | hhanh00 | March 22, 2015, 11:12:07 AM |
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2 BTC bounty for fixing our multi-signature bug in the Bitcore API Development & Technical Discussion
- Take the raw transactionCode:0100000001a8e825e97723b40afbbc702d56b1f215b8e14d9…
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n/a | hhanh00 | March 22, 2015, 11:07:45 AM |
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Does the P2SH script enforce the value 'n' of m-of-n? Development & Technical Discussion
Great, thanks.So, correct me if I've got this wrong: In a scenario where a signa…
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n/a | hhanh00 | March 20, 2015, 09:47:26 AM |
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Does the P2SH script enforce the value 'n' of m-of-n? Development & Technical Discussion
Yes, in most cases the signature covers the entire new transaction (minus the si…
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n/a | hhanh00 | March 20, 2015, 09:15:41 AM |
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Does the P2SH script enforce the value 'n' of m-of-n? Development & Technical Discussion
The signatures used in multisig are produced the same way single signatures are…
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n/a | hhanh00 | March 20, 2015, 08:34:41 AM |
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Does the P2SH script enforce the value 'n' of m-of-n? Development & Technical Discussion
Yes to all your questions.
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n/a | hhanh00 | March 20, 2015, 06:40:08 AM |
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Does the P2SH script enforce the value 'n' of m-of-n? Development & Technical Discussion
You may be over thinking this. First of all, P2SH and multi-sig are two orthogon…
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n/a | hhanh00 | March 19, 2015, 11:53:09 AM |
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How does the protocol broadcast hidden services? Development & Technical Discussion
Thanks, I was wondering how one could tunnel a DNS request through the socks 5 p…
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n/a | hhanh00 | March 16, 2015, 08:13:03 AM |
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How does the protocol broadcast hidden services? Development & Technical Discussion
When the core client runs through Tor and looks for seed nodes. Is DNS still use…
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n/a | hhanh00 | March 15, 2015, 07:15:10 PM |
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How does the protocol broadcast hidden services? Development & Technical Discussion
Thanks, with your help I found a post that documents the encoding[1].[1]: https:…
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n/a | hhanh00 | March 14, 2015, 11:32:15 PM |
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How does the protocol broadcast hidden services? Development & Technical Discussion
When I run a regular node, my listening endpoint is part of the version msg and…
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n/a | hhanh00 | March 14, 2015, 09:04:24 AM |
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BIP 32 questions Development & Technical Discussion
1. Not that I particularly endorse this method but you can go to bip32.org (or r…
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n/a | hhanh00 | March 11, 2015, 04:01:08 AM |
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SHA-256 in c++ with crypto++ Bitcoin Technical Support
The output you are getting "is the digest in binary form".So just pass that to t…
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n/a | hhanh00 | March 10, 2015, 11:48:59 PM |
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finding Bitcoin address in a MYSQL text column Development & Technical Discussion
Remove the ^ and $
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n/a | hhanh00 | March 10, 2015, 07:57:53 PM |
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SHA-256 in c++ with crypto++ Bitcoin Technical Support
Replace return string((char*)abDigest);With return string((char*)abDigest, 32…
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n/a | hhanh00 | March 10, 2015, 07:03:03 PM |
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SHA-256 in c++ with crypto++ Bitcoin Technical Support
- The missing characters are in the "control character" range (1-1F), they are n…
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n/a | hhanh00 | March 09, 2015, 07:29:17 PM |
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An easy way to remember a bitcoin address Development & Technical Discussion
QuoteIt is an impossible task to find 2048 completely different and easily memor…
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n/a | hhanh00 | March 09, 2015, 01:37:11 AM |
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An easy way to remember a bitcoin address Development & Technical Discussion
Encode (blockheight, txIndex, txoIndex, pubScript) into a list of numbers betwee…
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n/a | hhanh00 | March 08, 2015, 11:18:33 PM |
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An easy way to remember a bitcoin address Development & Technical Discussion
With checksum=20bits and blocks with =< 2048 txs, my proposal already guarantees…
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n/a | hhanh00 | March 08, 2015, 10:51:33 AM |
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Strange (Yet Correct) Script Development & Technical Discussion
1. It could be that someone was testing the signature check count limit. The rul…
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n/a | hhanh00 | March 08, 2015, 08:56:47 AM |
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An easy way to remember a bitcoin address Development & Technical Discussion
Without the ability to encode all outputs in the blockchain, the use of such mne…
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n/a | hhanh00 | March 08, 2015, 05:31:58 AM |
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An easy way to remember a bitcoin address Development & Technical Discussion
Since you make the 'reference' transaction, you can make one that has a low numb…
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n/a | hhanh00 | March 08, 2015, 03:58:44 AM |
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An easy way to remember a bitcoin address Development & Technical Discussion
I'm not sure how to prove but it looks quite obvious.y is a function of y1 and y…
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n/a | hhanh00 | March 07, 2015, 12:29:14 PM |
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An easy way to remember a bitcoin address Development & Technical Discussion
Yeah, you end up using y1 and z1. The only time it's not the case is when txinde…
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n/a | hhanh00 | March 07, 2015, 10:15:55 AM |
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An easy way to remember a bitcoin address Development & Technical Discussion
Yeah, you end up using y1 and z1. The only time it's not the case is when txinde…
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n/a | hhanh00 | March 07, 2015, 09:28:29 AM |
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An easy way to remember a bitcoin address Development & Technical Discussion
Right, I changed that to match your value but there is no need for it. Use tx ou…
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n/a | hhanh00 | March 07, 2015, 08:57:58 AM |
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An easy way to remember a bitcoin address Development & Technical Discussion
Right, I changed that to match your value but there is no need for it. Use tx ou…
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n/a | hhanh00 | March 07, 2015, 06:19:39 AM |
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An easy way to remember a bitcoin address Development & Technical Discussion
(It looks better in markdown)Using the same values for `x=3`, `c=4` and the bloc…
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n/a | hhanh00 | March 07, 2015, 05:23:06 AM |
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An easy way to remember a bitcoin address Development & Technical Discussion
You are only decoding to one of the possible pairs. Just walk through the steps…
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n/a | hhanh00 | March 07, 2015, 03:02:43 AM |
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An easy way to remember a bitcoin address Development & Technical Discussion
It's ambiguous because given an encoded value, you don't know where the separati…
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n/a | hhanh00 | March 07, 2015, 01:35:47 AM |
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SHA256 Scheduler? Development & Technical Discussion
Does Bitcoin just use the standard 64 rounds or does it require less?It wouldn't…
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n/a | hhanh00 | March 07, 2015, 12:26:16 AM |
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An easy way to remember a bitcoin address Development & Technical Discussion
It's 54 because 1 is left for the version bitTo formal define:Definitions:The ad…
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n/a | hhanh00 | March 07, 2015, 12:23:04 AM |
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SHA256 Scheduler? Development & Technical Discussion
Kinda. SHA-2 hasn't been cracked (i.e nothing better than brute force) but versi…
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n/a | hhanh00 | March 06, 2015, 10:59:59 AM |
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SHA256 Scheduler? Development & Technical Discussion
Yes
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n/a | hhanh00 | March 06, 2015, 02:59:05 AM |
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BIP 32 questions Development & Technical Discussion
A computer is generally better at producing random numbers than a human. Methods…
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n/a | hhanh00 | March 05, 2015, 02:11:25 AM |
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Pushing Partially Signed Transactions to other Bitcoin Clients Development & Technical Discussion
Dealing with unsigned tx is a wallet job and therefore not part of the P2P proto…
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n/a | hhanh00 | March 04, 2015, 09:29:46 AM |
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Counting the number of tx in a block without downloading the whole block? Development & Technical Discussion
On a related note, what's the reason why the tx-count in the block header retrie…
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n/a | hhanh00 | March 04, 2015, 05:16:45 AM |
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SHA256 Scheduler? Development & Technical Discussion
Why does it need to be expanded if the input has already been compressed/padded?…
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n/a | hhanh00 | March 03, 2015, 11:36:16 AM |
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SHA256 Scheduler? Development & Technical Discussion
Yes, the expander part is the message schedule. - First, the message is padded.-…
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n/a | hhanh00 | March 03, 2015, 02:06:24 AM |
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An easy way to remember a bitcoin address Development & Technical Discussion
A bip 32 seed is 128 bit long and takes 12 words. How did you figure out to use…
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n/a | hhanh00 | March 01, 2015, 09:57:51 PM |
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An easy way to remember a bitcoin address Development & Technical Discussion
Initially I wanted to encode BlockHeight,TxIndex,TxoutIndex as you said.If Alice…
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n/a | hhanh00 | March 01, 2015, 09:27:50 PM |
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An easy way to remember a bitcoin address Development & Technical Discussion
I'm completely confused by what you are saying now. The txindex = path. How can…
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n/a | hhanh00 | March 01, 2015, 07:47:56 PM |
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any use for a key generator based upon analogue electronic noise ? Project Development
There is a market for it. In fact, there are USB devices that do that but based…
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n/a | hhanh00 | March 01, 2015, 10:13:26 AM |
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An easy way to remember a bitcoin address Development & Technical Discussion
QuotePathToLeaf will be a bit array describing how to go from the merkle root do…
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n/a | hhanh00 | March 01, 2015, 01:56:40 AM |
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SHA256 Compression? Development & Technical Discussion
1. In the general case, you add padding.2. In the bitcoin case, the header has a…
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n/a | hhanh00 | February 28, 2015, 10:22:56 PM |
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bitcoind JSON RPC performance declining over the blockchain? Development & Technical Discussion
Your results are very surprising. Hard to say where the problem is without knowi…
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n/a | hhanh00 | February 23, 2015, 08:15:21 PM |
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A Bitcoin Security Paradox? Development & Technical Discussion
I'm not all that sanguine about cold storage for a couple reasons:1. An article…
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n/a | hhanh00 | February 23, 2015, 01:48:50 PM |
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A Bitcoin Security Paradox? Development & Technical Discussion
These recommendations are fine though you don't need to go that far to be safe.I…
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n/a | hhanh00 | February 23, 2015, 10:13:29 AM |
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A Bitcoin Security Paradox? Development & Technical Discussion
When you keep it simple, it's not so difficult. For example:Electrum on cold sto…
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n/a | hhanh00 | February 22, 2015, 01:39:32 AM |
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Nested P2SH Development & Technical Discussion
It looks like it. IMHO, it's not smart because the miner can trivially rewrite t…
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n/a | hhanh00 | February 19, 2015, 09:57:31 AM |
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Nested P2SH Development & Technical Discussion
The script debugger only shows you the inner script evaluation.
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n/a | hhanh00 | February 19, 2015, 08:29:05 AM |
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Interesting github forks? Development & Technical Discussion
For me, the most important one is the UTXO commitments proposal but I have no id…
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n/a | hhanh00 | February 17, 2015, 07:49:00 AM |
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SIGHASH_ANYONECANPAY. Development & Technical Discussion
You can add dummy inputs before you sign. The pre-sig tx removes them but it mak…
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n/a | hhanh00 | February 17, 2015, 03:35:41 AM |
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SIGHASH_ANYONECANPAY. Development & Technical Discussion
When you sign a transaction, the wallet prepares a 'before-sign' transaction the…
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n/a | hhanh00 | February 15, 2015, 09:25:06 AM |
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business idea Project Development
Here in Germany you can buy a phone card with a bar code.When you make your purc…
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n/a | hhanh00 | February 14, 2015, 07:05:33 AM |
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Parallel computing in Bitcoin Development & Technical Discussion
Parallel computers are often used to analyze complex systems in supercomputers.…
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n/a | hhanh00 | February 13, 2015, 09:44:13 PM |
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public/private key Development & Technical Discussion
The picture explains Diffie Hellman key exchange but it doesn't fit the signatur…
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n/a | hhanh00 | February 11, 2015, 03:31:45 AM |
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public/private key Development & Technical Discussion
Ok, thanks for all the help, I'm getting there, didn't get you had to have 3 par…
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n/a | hhanh00 | February 10, 2015, 10:12:38 PM |
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Another MtGox happening right now in China! 500 mil.$ lost. Prepare for a crash! Service Discussion
It's in the news here (in HK). But my wife is sleeping (2 am) and I don't unders…
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n/a | hhanh00 | February 08, 2015, 12:52:43 PM |
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Pay Now or Pay Later! Bitcoin Discussion
Hmmm ... I'm gonna write an app. Decentralized and P2P through a gossip protocol…
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n/a | hhanh00 | February 08, 2015, 12:36:39 PM |
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Some BTC addresses start with a "3" Bitcoin Discussion
Hmm, are you guys sure that there is such a strict distinction between the two?I…
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n/a | hhanh00 | February 08, 2015, 07:22:16 AM |
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Pay Now or Pay Later! Bitcoin Discussion
Out of interest, how do you get fiat into a p2p exchange?You go through a paymen…
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n/a | hhanh00 | February 08, 2015, 06:05:51 AM |
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Pay Now or Pay Later! Bitcoin Discussion
Forgive me for being so direct here... but frankly.... it's rather ignorant not…
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n/a | hhanh00 | February 08, 2015, 06:02:08 AM |
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Is it possible to..? Development & Technical Discussion
Well - you know to a certain extend because it has to be lower than the target d…
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n/a | hhanh00 | February 08, 2015, 05:45:30 AM |
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Pay Now or Pay Later! Bitcoin Discussion
I haven't said anything about ethics. No idea where this comes from. I said that…
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n/a | hhanh00 | February 08, 2015, 05:42:51 AM |
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Practical ways to store a redeem script for a P2SH address Development & Technical Discussion
OP_RETURN, seriously.Isn't a script too big to fit in a standard OP_RETURN?Yes a…
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n/a | hhanh00 | February 08, 2015, 05:35:12 AM |
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How long until we have time-locked/geo-restricted etc transactions? Bitcoin Discussion
There are proposed extensions to the bitcoin protocol to address some of these q…
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n/a | hhanh00 | February 08, 2015, 05:26:16 AM |
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Pay Now or Pay Later! Bitcoin Discussion
Independently from what KYC is for, it will be strongly enforced. At the end of…
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n/a | hhanh00 | February 08, 2015, 05:14:36 AM |
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Pay Now or Pay Later! Bitcoin Discussion
KYC isn't something that banks want. On the contrary, they would love to deal wi…
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n/a | hhanh00 | February 08, 2015, 04:51:15 AM |
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Pay Now or Pay Later! Bitcoin Discussion
First of all, I've read their whitepaper and message board so I think I did my r…
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n/a | hhanh00 | February 08, 2015, 04:03:23 AM |
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How to Create a Bitcoin Address from a Coin Flip Development & Technical Discussion
This thread reminds me of [Calvin & Hobbes](http://www.gocomics.com/calvinandhob…
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n/a | hhanh00 | February 07, 2015, 11:47:10 AM |
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2.5 BTC stolen i wanna cry :-( Bitcoin Discussion
Remember, you can only be infected by installing software (documents cannot infe…
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n/a | hhanh00 | February 07, 2015, 09:15:51 AM |
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2.5 BTC stolen i wanna cry :-( Bitcoin Discussion
So my point is, of course there have been viruses and malware that affect Linux,…
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n/a | hhanh00 | February 06, 2015, 09:57:38 PM |
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I thought trxid is unique Development & Technical Discussion
I don't trust blockchain.info as much as before.BC.i frequently shows outright i…
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n/a | hhanh00 | February 06, 2015, 02:24:27 PM |
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2.5 BTC stolen i wanna cry :-( Bitcoin Discussion
Linux is *not* without [malware](http://en.wikipedia.org/wiki/Linux_malware). It…
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n/a | hhanh00 | February 06, 2015, 02:12:03 PM |
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Practical ways to store a redeem script for a P2SH address Development & Technical Discussion
OP_RETURN, seriously.No, but thanks
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n/a | hhanh00 | February 04, 2015, 05:47:34 AM |
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Practical ways to store a redeem script for a P2SH address Development & Technical Discussion
If all parties use HD wallets, you can use HDM. Then you don't have to remember…
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n/a | hhanh00 | February 03, 2015, 08:05:47 PM |
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BTC's withdrawal without permission in Armory. Problem security? Armory
I suspect it is just the way Armory or Bitcoin Core handles undoing transactions…
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n/a | hhanh00 | February 03, 2015, 10:56:06 AM |
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Practical ways to store a redeem script for a P2SH address Development & Technical Discussion
If all parties use HD wallets, you can use HDM. Then you don't have to remember…
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n/a | hhanh00 | February 03, 2015, 02:15:43 AM |
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A minimal full node client in F# Wallet software
The functional approach helped keep the code short but there are still a few nas…
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n/a | hhanh00 | February 01, 2015, 12:17:53 AM |
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Best client for importing multiple private keys? Development & Technical Discussion
If you are only interested in balances, you can scan the utxo set and that only…
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n/a | hhanh00 | January 31, 2015, 08:40:06 AM |
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