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secp256k1 library in pure assembly Development & Technical Discussion
Alright.There's one other thing to address: in the secp256k1_fe_mul (or somethin…
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n/a | Pieter Wuille | December 28, 2022, 10:19:38 AM |
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secp256k1 library in pure assembly Development & Technical Discussion
But since I use secp256k1 curve only for testing and research I do no care much…
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n/a | Pieter Wuille | December 26, 2022, 09:52:18 AM |
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BIP 322 draft design and improvement thread Development & Technical Discussion
It is just an invention, a bad one: Programmable digital signature. There was no…
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n/a | Pieter Wuille | August 10, 2022, 03:13:55 PM |
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BIP 322 draft design and improvement thread Development & Technical Discussion
The Bitcoin script system *is* a (programmable) digital signature scheme on its…
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n/a | Pieter Wuille | August 10, 2022, 01:09:35 PM |
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Why does secp256k1_fe_set_int enforce a <= 0x7FFF? Development & Technical Discussion
I'm not sure about papers. Some of the low-level field arithmetic in libsecp256k…
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n/a | Pieter Wuille | July 25, 2022, 12:39:48 PM |
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Why does secp256k1_fe_set_int enforce a <= 0x7FFF? Development & Technical Discussion
Oh, I had missed part of the question. I don't recall why the documentation limi…
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n/a | Pieter Wuille | July 23, 2022, 04:53:54 PM |
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Why does secp256k1_fe_set_int enforce a <= 0x7FFF? Development & Technical Discussion
Interesting question!The reason for the restriction is simply to keep secp256k1_…
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n/a | Pieter Wuille | July 23, 2022, 10:43:07 AM |
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CoinJoin: Bitcoin privacy for the real world Development & Technical Discussion
Code:-----BEGIN PGP SIGNED MESSAGE-----Hash: SHA512Hello all,this is to announce…
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n/a | Pieter Wuille | May 29, 2019, 08:31:17 PM |
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Segregated Witness legal flaw and its probable technical solutions Development & Technical Discussion
Yes @Pietre, I do agree, several problems will be fixed but one problem will be…
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n/a | Pieter Wuille | June 29, 2017, 03:33:06 PM |
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Segregated Witness legal flaw and its probable technical solutions Development & Technical Discussion
Let's take a moment and chew it: Current light clients can't check UTXO and prev…
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n/a | Pieter Wuille | June 29, 2017, 12:17:07 PM |
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Segregated Witness legal flaw and its probable technical solutions Development & Technical Discussion
A full node is capable to handle temporary chain splits and to choose the right…
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n/a | Pieter Wuille | June 28, 2017, 04:55:20 PM |
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Segregated Witness legal flaw and its probable technical solutions Development & Technical Discussion
Validating nodes need to download and verify the signatures. This is true now, a…
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n/a | Pieter Wuille | June 28, 2017, 03:28:45 PM |
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The case for moving from a 160 bit to a 256 bit Bitcoin address Development & Technical Discussion
In order to get collision with a 40% chance on a set of 2 ^ 80 addresses, you ne…
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n/a | Pieter Wuille | June 23, 2017, 07:28:00 PM |
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Segwit details? SEGWIT WASTES PRECIOUS BLOCKCHAIN SPACE PERMANENTLY Development & Technical Discussion
From the point of view of old clients, segwit adds one coinbase output that cont…
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n/a | Pieter Wuille | March 16, 2016, 08:27:36 AM |
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Elements Project testnet sidechain alpha released Development & Technical Discussion
Running with -testnet is default. You can run with -notestnet, but this will res…
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n/a | Pieter Wuille | June 09, 2015, 06:47:37 AM |
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JSONRPC - not working with Bitcoin - others are 100% working Bitcoin Technical Support
Hard to say without seeing the script...
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n/a | Pieter Wuille | February 22, 2015, 12:20:50 PM |
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BIP 66 status (miners' votes) Development & Technical Discussion
See any of these graphs (different time ranges):http://bitcoin.sipa.be/ver-2k.pn…
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n/a | Pieter Wuille | February 22, 2015, 01:00:09 AM |
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Is bitcoin v0.10's new libsecp256k1 safe & without mathematical backdoors? Development & Technical Discussion
Code:void print_number(double x) { double y = x; int c = 0; if (y < 0.0…
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n/a | Pieter Wuille | February 05, 2015, 01:48:35 AM |
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Is bitcoin v0.10's new libsecp256k1 safe & without mathematical backdoors? Development & Technical Discussion
However, libsecp256k1 takes its nonce as input to its API, and from that point o…
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n/a | Pieter Wuille | January 28, 2015, 10:26:53 PM |
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Is bitcoin v0.10's new libsecp256k1 safe & without mathematical backdoors? Development & Technical Discussion
Hi colinistheman,it's very good that people have concerns about the security of…
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n/a | Pieter Wuille | January 28, 2015, 10:15:54 PM |
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Remove block validations in order to speed up initial sync from known client Development & Technical Discussion
-checklevel only changes the level of consistency checks done at startup, it doe…
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n/a | Pieter Wuille | January 26, 2015, 12:51:05 AM |
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Block size Development & Technical Discussion
Quote"Core developers" (whoever that creatures are) cannot do anything with the…
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n/a | Pieter Wuille | January 21, 2015, 02:16:07 PM |
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0x00 prefix for R and S values in DER signature Development & Technical Discussion
It's a DER requirement to prefix a 0x00 byte to an encoded integer if the intege…
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n/a | Pieter Wuille | November 26, 2014, 06:42:39 PM |
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BIP proposal: Canonical Deterministic Signatures Development & Technical Discussion
BIP 62 already contains a proposal to make S values deterministic (by making it…
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n/a | Pieter Wuille | August 07, 2014, 08:45:58 AM |
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ECDSA Signatures allow recovery of the public key Development & Technical Discussion
Can anyone think of any reason why the Bitcoin client requires the user provide…
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n/a | Pieter Wuille | April 12, 2014, 10:41:10 AM |
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Non-canonical signatures: looking for detectives Development & Technical Discussion
Do you remember which version started enforcing those rules?v0.8.0
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n/a | Pieter Wuille | December 15, 2013, 07:49:30 AM |
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strip the reference client to a border router Development & Technical Discussion
Can we just embed the relevant part of OpenSSL to the code, so we don't need to…
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n/a | Pieter Wuille | October 28, 2013, 05:32:20 AM |
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bip32 wallet structure for electrum Electrum
Looks good to me.
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n/a | Pieter Wuille | August 15, 2013, 06:05:41 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 | Pieter Wuille | July 28, 2013, 11:14:18 AM |
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Buggy CVE-2013-4627 patch, open new vectors of attack Development & Technical Discussion
The reason for mapRelay (i.e., storing relayed data in wire format, rather than…
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n/a | Pieter Wuille | July 19, 2013, 05:47:55 PM |
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New Attack Vector Development & Technical Discussion
it makes it nearly impossible to create a alternative client, when the "standard…
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n/a | Pieter Wuille | July 19, 2013, 12:05:55 PM |
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New Attack Vector Development & Technical Discussion
The standard was using DER-encoded signatures, we're not making anything up - we…
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n/a | Pieter Wuille | July 17, 2013, 11:23:40 AM |
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New Attack Vector Development & Technical Discussion
@kokjo: mind sharing the code how to embed the OpenSSL-created signature into a…
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n/a | Pieter Wuille | July 17, 2013, 10:49:46 AM |
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New Attack Vector Development & Technical Discussion
fix bitcoin, go make a standard and stick to it.No offence, but all this work is…
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n/a | Pieter Wuille | July 17, 2013, 10:38:10 AM |
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I Need Version 0.3.25.1-beta of the Bitcoin software Development & Technical Discussion
Or they added a tag of their own.
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n/a | Pieter Wuille | July 14, 2013, 02:10:25 PM |
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proposal: delete blocks older than 1000 Development & Technical Discussion
Deleting old blocks is perfectly possible - this was a design goal when the 0.8…
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n/a | Pieter Wuille | July 14, 2013, 02:08:00 PM |
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Trying to implement BIP 0032, having some trouble. Development & Technical Discussion
If you start from an extended private key, and private derivation is used (the h…
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n/a | Pieter Wuille | July 14, 2013, 02:04:17 PM |
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ECDsa Verification Speed Development & Technical Discussion
It looks like the whole thing is inverted and the return value should be 0 == go…
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n/a | Pieter Wuille | July 12, 2013, 06:49:27 PM |
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Deterministic wallets Development & Technical Discussion
Peter, can BIP32 be changed to a status of Final on the wiki now?I've made it 'A…
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n/a | Pieter Wuille | June 22, 2013, 11:44:28 AM |
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Bitcoin-Qt / bitcoind 0.8.2 (final) available Bitcoin Discussion
Still says beta though Every Bitcoin version ever released has been beta (inten…
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n/a | Pieter Wuille | May 30, 2013, 12:32:46 AM |
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Bitcoin-Qt / bitcoind 0.8.2 (final) available Bitcoin Discussion
Ugh I hate the mandatory downloads..There is nothing mandatory here.
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n/a | Pieter Wuille | May 29, 2013, 04:56:30 PM |
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Extremely high bitcoind getblocktemplate latency Development & Technical Discussion
0.8.2rc2 and above have a patch that makes getblocktemplate significantly faster…
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n/a | Pieter Wuille | May 27, 2013, 05:40:43 PM |
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Ultimate blockchain compression w/ trust-free lite nodes Development & Technical Discussion
I completely disagree.Yes, Bitcoin is exactly the same as other currencies in th…
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n/a | Pieter Wuille | May 27, 2013, 05:38:13 PM |
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Bitcoin client with I2P patch Development & Technical Discussion
If I understand correctly you talking about PROTOCOL_VERSION constant in version…
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n/a | Pieter Wuille | May 27, 2013, 02:17:58 PM |
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Bitcoin client with I2P patch Development & Technical Discussion
I don't think there's a need to use a service flag for this. We could just bump…
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n/a | Pieter Wuille | May 27, 2013, 10:07:03 AM |
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RFC: Comment field in Transactions Development & Technical Discussion
I agree with the idea. Any progress made on this?The only data that belongs in (…
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n/a | Pieter Wuille | May 26, 2013, 11:31:15 PM |
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Ultimate blockchain compression w/ trust-free lite nodes Development & Technical Discussion
Bitcoin at its core is not an accounting system, it is a currency. It implements…
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n/a | Pieter Wuille | May 26, 2013, 07:58:59 PM |
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Can a transaction be included in multiple blocks? Development & Technical Discussion
Can a miner include a transaction in a block, if that transaction has already be…
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n/a | Pieter Wuille | May 26, 2013, 04:26:56 PM |
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can't find some transaction in my bitcoind Development & Technical Discussion
Nope but by default "getrawtransaction" will not allow you to access tx's that d…
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n/a | Pieter Wuille | May 26, 2013, 01:16:40 AM |
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Deterministic wallets Development & Technical Discussion
Now Peter, where are those test vectors!? Have a look
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n/a | Pieter Wuille | May 25, 2013, 05:32:19 PM |
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Bug in the official bitcoind? Development & Technical Discussion
The genesis block's output is not actually part of the transaction database, as…
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n/a | Pieter Wuille | May 25, 2013, 05:30:37 PM |
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Does list transsaction store the lists of transactions or the other way? Development & Technical Discussion
Neither.It queries the wallet, not the blockchain. The wallet contains a list of…
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n/a | Pieter Wuille | May 22, 2013, 10:49:24 PM |
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0.8.2rc1 ready for testing Development & Technical Discussion
If I leave the default settings (
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n/a | Pieter Wuille | May 22, 2013, 10:47:29 PM |
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Making a Backup Copy of the Blockchain created by Bitcoin-QT Client Development & Technical Discussion
But now in Bitcoin-QT client 0.8.1, I'm not sure anymore what exact files are ne…
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n/a | Pieter Wuille | May 22, 2013, 10:46:09 PM |
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Who is Satoshi - but more importantly how would we know? Development & Technical Discussion
I meant why is it this way? Is it from the beginning or did something happen?It'…
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n/a | Pieter Wuille | May 15, 2013, 04:51:11 PM |
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Who is Satoshi - but more importantly how would we know? Development & Technical Discussion
Do you have a link I can read about it?Any version of bitcoind/bitcoin-qt's sour…
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n/a | Pieter Wuille | May 15, 2013, 04:27:35 PM |
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Who is Satoshi - but more importantly how would we know? Development & Technical Discussion
Bitcoin-qt doesn't allow such spending.This sounds like it's a limitation of the…
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n/a | Pieter Wuille | May 15, 2013, 03:12:43 PM |
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A bit of criticism on how the bitcoin client does it Development & Technical Discussion
Oh, I think I see your confusion.The only way to request blocks is using getdata…
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n/a | Pieter Wuille | May 15, 2013, 07:23:41 AM |
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A bit of criticism on how the bitcoin client does it Development & Technical Discussion
But what I wanted to achieve was downloading a block's payload in fragments (fro…
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n/a | Pieter Wuille | May 15, 2013, 07:19:26 AM |
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A bit of criticism on how the bitcoin client does it Development & Technical Discussion
But if I make a long bloom filter, then it should never match and so I should be…
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n/a | Pieter Wuille | May 15, 2013, 07:13:50 AM |
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A bit of criticism on how the bitcoin client does it Development & Technical Discussion
I have been looking at BIT37 and it seems that "merkleblock" is exactly what I n…
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n/a | Pieter Wuille | May 15, 2013, 03:53:18 AM |
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A bit of criticism on how the bitcoin client does it Development & Technical Discussion
QuoteWhat protocol is used to actually fetch blocks is pretty much orthogonal to…
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n/a | Pieter Wuille | May 13, 2013, 03:31:48 PM |
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A bit of criticism on how the bitcoin client does it Development & Technical Discussion
Why to ask 500 blocks back?It doesn't, as far as I know. It asks for "up 500 blo…
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n/a | Pieter Wuille | May 13, 2013, 03:22:30 PM |
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A bit of criticism on how the bitcoin client does it Development & Technical Discussion
1.Maybe I have not verified it well enough, but I have an impression that the or…
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n/a | Pieter Wuille | May 13, 2013, 02:49:39 PM |
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how does blockchain.info get the originating IP? Service Discussion
They don't know the originating IP; only the IP that first relayed it to them.
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n/a | Pieter Wuille | May 12, 2013, 04:29:54 PM |
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Deterministic wallets Development & Technical Discussion
1. Can we reserve more than one bit of the number i for different kind of deriva…
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n/a | Pieter Wuille | May 12, 2013, 01:38:13 PM |
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Initial replace-by-fee implementation is now available on testnet Development & Technical Discussion
I'm in the middle about this.One the one hand, I do understand the reason for a…
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n/a | Pieter Wuille | May 12, 2013, 06:02:24 AM |
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[BOUNTY: 2.0 BTC] [CLAIMED] Message Signing in Armory Armory
Just as a FYI, the C secp256k1 library I'm writing has support for creating reco…
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n/a | Pieter Wuille | May 12, 2013, 04:47:02 AM |
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Deterministic wallets Development & Technical Discussion
I still haven't seen a compelling argument for being able to change chaincode in…
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n/a | Pieter Wuille | May 12, 2013, 04:41:27 AM |
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0.8.2rc1 ready for testing Development & Technical Discussion
When I start it up there is a message that says not to be used for mining. Can s…
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n/a | Pieter Wuille | May 10, 2013, 06:31:31 PM |
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Deterministic wallets Development & Technical Discussion
- get the basescript with GetCScript(id)Where does the CScript from if you don't…
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n/a | Pieter Wuille | May 10, 2013, 06:30:41 PM |
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Deterministic wallets Development & Technical Discussion
I imagined constructing multisig addresses of a set of (potentially completely i…
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n/a | Pieter Wuille | May 10, 2013, 08:37:29 AM |
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Concerns regarding deterministic wallet Development & Technical Discussion
Consider that the entire bitcoin network, over the course of the last 4.5 years,…
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n/a | Pieter Wuille | May 09, 2013, 06:23:46 PM |
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Concerns regarding deterministic wallet Development & Technical Discussion
If an attacker needs to guess a key, there is nothing to worry about. The keyspa…
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n/a | Pieter Wuille | May 09, 2013, 06:05:55 PM |
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Bootstrapping the pruned blockchain Development & Technical Discussion
The validity of bootstrap can easily be checked by checking the hash (which has…
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n/a | Pieter Wuille | May 08, 2013, 06:07:32 PM |
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Bootstrapping the pruned blockchain Development & Technical Discussion
Bitcoin - at least as implemented by the reference client today - is a zero-trus…
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n/a | Pieter Wuille | May 08, 2013, 06:00:59 PM |
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Deterministic wallets Development & Technical Discussion
The reason for specifying that I_L >= n isn't allowed is indeed to guarantee uni…
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n/a | Pieter Wuille | May 08, 2013, 05:26:04 PM |
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Listunspent error Development & Technical Discussion
Listunspent fetches from the wallet, not from the (global) UTXO set.
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n/a | Pieter Wuille | May 03, 2013, 07:14:35 PM |
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Deterministic wallets Development & Technical Discussion
Hey iddo & thanke,I love how thoroughly you've been discussing this, though I mu…
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n/a | Pieter Wuille | May 03, 2013, 12:10:13 PM |
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Building headless Bitcoin and Bitcoin-qt on Windows Development & Technical Discussion
Feel free to submit a pull request to replace build-msw.txt with this!
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n/a | Pieter Wuille | April 29, 2013, 09:53:29 AM |
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Deterministic wallets Development & Technical Discussion
@iddo: have a look at https://bitcointalk.org/index.php?topic=102349.0
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n/a | Pieter Wuille | April 23, 2013, 03:04:06 PM |
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Deterministic wallets Development & Technical Discussion
I still don't see how exactly it could be that "A creates a new K'par" and follo…
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n/a | Pieter Wuille | April 23, 2013, 05:00:18 AM |
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Deterministic wallets Development & Technical Discussion
I don't want to specify how wallet software should work.OK, you do not want to s…
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n/a | Pieter Wuille | April 22, 2013, 10:58:53 AM |
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Deterministic wallets Development & Technical Discussion
I don't want to specify how wallet software should work.
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n/a | Pieter Wuille | April 22, 2013, 10:20:40 AM |
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Deterministic wallets Development & Technical Discussion
Keys generated within a single sub account might also use any random index.That'…
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n/a | Pieter Wuille | April 22, 2013, 09:45:41 AM |
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Deterministic wallets Development & Technical Discussion
I still believe that for the default wallet layout (subaccounts at level 1 and l…
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n/a | Pieter Wuille | April 22, 2013, 08:02:24 AM |
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Deterministic wallets Development & Technical Discussion
If K_i = (i*c_par)*K_par then you get the same phenomenon, right? The difference…
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n/a | Pieter Wuille | April 22, 2013, 06:57:23 AM |
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Deterministic wallets Development & Technical Discussion
Why does constant time public derivation give security against timing attacks? I…
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n/a | Pieter Wuille | April 22, 2013, 06:54:50 AM |
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Deterministic wallets Development & Technical Discussion
I don't think storing the maximal branching inside the serialized format is the…
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n/a | Pieter Wuille | April 22, 2013, 06:46:44 AM |
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Deterministic wallets Development & Technical Discussion
It is not less secure, as you still need to solve the ECDLP to find I_L from I_L…
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n/a | Pieter Wuille | April 22, 2013, 04:44:08 AM |
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Deterministic wallets Development & Technical Discussion
Pieter: what's the difference between what you just posted and what iddo posted?…
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n/a | Pieter Wuille | April 21, 2013, 06:21:38 PM |
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Deterministic wallets Development & Technical Discussion
With the additive variant, don't you get I_L*G from parent and a child pubkeys,…
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n/a | Pieter Wuille | April 21, 2013, 05:58:15 PM |
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Deterministic wallets Development & Technical Discussion
I suggest to set and serialize maximum i for each extended key. Such serialized…
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n/a | Pieter Wuille | April 17, 2013, 12:41:58 PM |
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Deterministic wallets Development & Technical Discussion
Maybe I'm overlooking something and should read the code.. but how does modifyin…
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n/a | Pieter Wuille | April 17, 2013, 09:47:08 AM |
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Deterministic wallets Development & Technical Discussion
It doesn't complicate implementation because I consider it a trivial change. It…
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n/a | Pieter Wuille | April 17, 2013, 09:14:17 AM |
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Deterministic wallets Development & Technical Discussion
Countering the above cited comment: what do we gain by having ci depend on Kpar?…
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n/a | Pieter Wuille | April 17, 2013, 07:03:52 AM |
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Who is creating non-DER signatures? Development & Technical Discussion
Some old versions of bitcoinjs and Armory are known to have produced non-DER sig…
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n/a | Pieter Wuille | April 17, 2013, 05:15:08 AM |
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Who is creating non-DER signatures? Development & Technical Discussion
So bitcoinjs can do this? I thought we looked at it before and ruled that out. M…
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n/a | Pieter Wuille | April 16, 2013, 02:21:35 PM |
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Deterministic wallets Development & Technical Discussion
Hello all,I've made some changes to BIP32 to deal with the issue of revealing a…
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n/a | Pieter Wuille | April 16, 2013, 02:18:29 PM |
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Bitcoin clients should have a MESSAGE option ! Development & Technical Discussion
These issues make me think that the place for messages is in a payment protocol…
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n/a | Pieter Wuille | April 14, 2013, 12:49:00 PM |
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