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Need help understanding this modular inverse implementation Development & Technical Discussion
I mean lots of words explaining it.Here is the code I made back in 2019, this is…
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n/a | j2002ba2 | June 11, 2024, 04:12:09 AM |
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Need help understanding this modular inverse implementation Development & Technical Discussion
This is Extended Binary GCDBinary GCD:https://xlinux.nist.gov/dads/HTML/binaryGC…
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n/a | j2002ba2 | June 11, 2024, 03:11:32 AM |
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Why gcd between base point and any other point will give us one or three? Development & Technical Discussion
Because 0x1110...f784 has many small factors:2^2 * 17 * 4289 * 6196937 * 9672199…
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n/a | j2002ba2 | December 29, 2023, 01:40:57 PM |
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Replacing P with N on elliptic curves Archival
There is an elliptic curve equation, which is taken modulo P. This produces a gr…
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n/a | j2002ba2 | December 21, 2023, 04:07:55 AM |
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Researcher Claims to Crack RSA-2048 With Quantum Computer Development & Technical Discussion
Shor's algorithm with noiseless qubits and gates works in theory.Shor's algorith…
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n/a | j2002ba2 | November 09, 2023, 07:00:26 PM |
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Researcher Claims to Crack RSA-2048 With Quantum Computer Development & Technical Discussion
You got it wrong. RSA-2048 is not vulnerable to QC even theoretically.Now you're…
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n/a | j2002ba2 | November 05, 2023, 07:49:16 AM |
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Researcher Claims to Crack RSA-2048 With Quantum Computer Development & Technical Discussion
You got it wrong. RSA-2048 is not vulnerable to QC even theoretically. Neither i…
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n/a | j2002ba2 | November 05, 2023, 05:33:30 AM |
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Researcher Claims to Crack RSA-2048 With Quantum Computer Development & Technical Discussion
they might not factor 10^1000 size numbers but 2048 bit numbers are an entirely…
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n/a | j2002ba2 | November 04, 2023, 08:36:26 PM |
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Quantum Computers Can Not Defeat Bitcoin, not even The Bitcoin Network Bitcoin Discussion
Humanity developing a quantum computer strong enough to break ECDSA seems far mo…
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n/a | j2002ba2 | November 03, 2023, 01:59:54 PM |
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Bitcoin Mining Technical Details. Help Development & Technical Discussion
Code:txs: 0300If what I'm reading here in little-endian (3 transactions) is cor…
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n/a | j2002ba2 | October 17, 2023, 08:47:18 AM |
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Bitcoin Mining Technical Details. Help Development & Technical Discussion
How do you create a "coinbase tx"? Can it be built via createrawtransaction or c…
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n/a | j2002ba2 | October 13, 2023, 03:54:29 PM |
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If we find DLP solution for EC, what is the alternative to replace ECC? Development & Technical Discussion
What happens if such solution is found?Nothing. Anybody finding it would keep si…
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n/a | j2002ba2 | October 13, 2023, 12:00:01 PM |
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How to calculate Lambda and Beta for n and p? Development & Technical Discussion
lambda and beta are non-trivial cube roots of 1 modulo n and p.λ3 = 1 (mod n)β3…
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n/a | j2002ba2 | October 11, 2023, 12:54:12 PM |
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Bitcoin Mining Technical Details. Help Development & Technical Discussion
This is a segwit transaction. Remove the marker, flag, and witness.https://githu…
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n/a | j2002ba2 | October 10, 2023, 05:21:44 PM |
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The Quantum Threat to Bitcoin: Implications for Miners, Nodes, and Wallets Development & Technical Discussion
One we have quantum computers of 4000 Qubits, things will get tough for current…
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n/a | j2002ba2 | October 07, 2023, 02:43:04 PM |
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Express Your Opinions on Emerging Solutions for Quantum Computing Threats Development & Technical Discussion
"Super-singular elliptic-curve isogeny cryptosystems" has been broken classicall…
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n/a | j2002ba2 | October 04, 2023, 12:54:19 PM |
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How to calculate accurately about collisions in bit ranges? Archival
So put simply, the only way to see if 2 identical addresses exist in any bit ran…
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n/a | j2002ba2 | September 29, 2023, 05:57:12 PM |
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A smart self-custodial wallet for bitcoin Development & Technical Discussion
... So for three years now with approximately 366 days then the block need for 3…
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n/a | j2002ba2 | September 17, 2023, 01:16:01 PM |
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Need Urgent Help To Recover My Old Lost Wallet Archival
Because, it is not guaranteed that such information will be safe from future kin…
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n/a | j2002ba2 | August 22, 2023, 09:43:51 AM |
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Why do you think G/2 is so strange? Development & Technical Discussion
But anyway what do you think about the goal of this anomaly?There is no anomaly,…
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n/a | j2002ba2 | January 04, 2023, 12:30:51 PM |
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Are UTXOs stored in a file? Development & Technical Discussion
UTXO are stored in chainstate subdirectory, which is a LevelDB database, current…
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n/a | j2002ba2 | December 11, 2022, 11:38:49 AM |
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secp256k1 library in pure assembly Development & Technical Discussion
Ok, lets to to write it by parts using openAICode:... addq num2(,%rax,8), %rd…
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n/a | j2002ba2 | December 05, 2022, 12:48:07 PM |
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What is the lowest (non-zero) transaction fee you have ever used or seen? Development & Technical Discussion
Anyone aware of lower fee examples (in 2022)?Here is a transaction with fee exac…
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n/a | j2002ba2 | October 19, 2022, 01:02:53 PM |
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Exposed ... Mistakes or ... Development & Technical Discussion
A bit off-topic but...SAGE seems to have represented these finite fields and cur…
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n/a | j2002ba2 | October 11, 2022, 07:19:00 PM |
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My own Bitcoin WIF Missing Characters Help Development & Technical Discussion
hello there i have my own bitcoin address and public key and a WIF recognized as…
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n/a | j2002ba2 | August 21, 2022, 01:24:17 PM |
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Fail at coding my own Secp256k1 function (Pyhon) Development & Technical Discussion
...I got it, and your suggestions are useful. I changed the code here and on Gi…
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n/a | j2002ba2 | August 11, 2022, 12:18:23 PM |
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Why does signature verification calculate the square root of y? Development & Technical Discussion
No look, bitcoinsig.js that is used in the "brainwallet.github.io" sites has thi…
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n/a | j2002ba2 | August 03, 2022, 12:31:31 PM |
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Why does signature verification calculate the square root of y? Development & Technical Discussion
To find square root mod p when p%4 = 3 (prime of secp256k1 curve is like that) y…
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n/a | j2002ba2 | August 03, 2022, 08:16:06 AM |
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Why PTLC when HTLC does the job Development & Technical Discussion
This is the main disadvantage of HTLC:Quote from: https://bitcoinops.org/en/topi…
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n/a | j2002ba2 | August 02, 2022, 04:53:30 AM |
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What is the drawback of PoS ? Development & Technical Discussion
Cooling is solved. You place desalination facilities in the coast region, then y…
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n/a | j2002ba2 | July 05, 2022, 02:22:03 AM |
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Create a seed from a selection of words Development & Technical Discussion
There cannot be more than 128 bits entropy in BIP39 12-words. There are not enou…
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n/a | j2002ba2 | June 01, 2022, 05:40:14 AM |
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Create a seed from a selection of words Development & Technical Discussion
Which means that one must "preselect" another 3 bits. It would look like selecti…
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n/a | j2002ba2 | May 31, 2022, 05:06:01 AM |
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Create a seed from a selection of words Development & Technical Discussion
To be more precise, we may say that if unknown word is on the last position, cou…
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n/a | j2002ba2 | May 28, 2022, 04:43:34 AM |
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Deep understanding for Bitcoin Development & Technical Discussion
Additionally the new difficulty is constrained to be between [1/4, 4] times the…
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n/a | j2002ba2 | May 22, 2022, 06:19:53 AM |
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Deep understanding for Bitcoin Development & Technical Discussion
The actual formula is new_difficulty = old_difficulty * (20160 / time_elapsed_fo…
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n/a | j2002ba2 | May 22, 2022, 02:23:18 AM |
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Why rely on a single hash function? Development & Technical Discussion
i think you might be assuming sha256 is a one-way function. it might not be. and…
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n/a | j2002ba2 | May 19, 2022, 12:05:15 PM |
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How can you verify the randomness that's coming from a hardware? Development & Technical Discussion
You only need to roll a dice 99 times to get a 256-bit number. Which gives you a…
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n/a | j2002ba2 | May 09, 2022, 12:33:32 PM |
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Comparing Jacobian/Affine points Development & Technical Discussion
You could use the method for comparing two jacobian points directly.(xa, ya, za=…
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n/a | j2002ba2 | April 28, 2022, 03:16:33 AM |
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Question about SHA-256 hash functions Development & Technical Discussion
Both highlighted leading characters are "random". Finding a hash with different…
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n/a | j2002ba2 | April 21, 2022, 02:01:14 AM |
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An Idea To Increase the Efficiency of Bitcoin Mining by an Order of Magnitude Development & Technical Discussion
A Bitcoin Mining operation that relies purely on solar power could remain operat…
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n/a | j2002ba2 | April 03, 2022, 01:43:09 AM |
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Why doesn't c-lightning connect you to a list of peers by default? Development & Technical Discussion
In Bitcoin Core, there is a DNS seeds feature which makes outgoing connections f…
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n/a | j2002ba2 | March 11, 2022, 12:19:49 PM |
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Anonymous UTXO consolidation through LN Development & Technical Discussion
Currently LN is a bit limited in terms of privacy. The biggest showstopper is th…
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n/a | j2002ba2 | February 21, 2022, 08:15:29 AM |
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An Idea To Increase the Efficiency of Bitcoin Mining by an Order of Magnitude Development & Technical Discussion
Optical computing is extremely slow and clunky. Optical stuff is great for commu…
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n/a | j2002ba2 | January 26, 2022, 11:12:56 AM |
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Elliptic Curve Point Addition Question Development & Technical Discussion
Thanks so much for everyone's input so far.Could I ask if someone would be able…
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n/a | j2002ba2 | January 24, 2022, 03:05:19 AM |
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Is it possible to convert a part of HASH string into human-readable format? Development & Technical Discussion
...$35714$...35714 - Why is this number 5 characters? What is the function of th…
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n/a | j2002ba2 | January 20, 2022, 11:21:06 AM |
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Odd or even? Development & Technical Discussion
To answer to this question, there is no need to mathematical calculations at all…
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n/a | j2002ba2 | January 16, 2022, 08:28:05 AM |
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checking address or pubkey of unspendable bitcoins Development & Technical Discussion
There are (N-1)/2 x coordinates. The point at infinity - corresponding to privat…
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n/a | j2002ba2 | January 02, 2022, 05:55:46 AM |
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How to build and install Liboqs for Post quantum cryptography Development & Technical Discussion
Of course, Quantum computer is not expected to unfold completely in few years, d…
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n/a | j2002ba2 | December 24, 2021, 06:00:32 PM |
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How to build and install Liboqs for Post quantum cryptography Development & Technical Discussion
The threat of cryptanalysis attack by quantum computers which can break into pub…
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n/a | j2002ba2 | December 24, 2021, 10:12:57 AM |
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Deloitte Article on Threat of Quantum Computers Bitcoin Discussion
Quantum computers are vastly inferior and super expensive to use devices. Sellin…
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n/a | j2002ba2 | December 21, 2021, 10:11:40 AM |
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Developer: Write code to generate all possible private keys Development & Technical Discussion
Storing 264 (or 269) bits is possible with todays technology. To get 269 bits in…
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n/a | j2002ba2 | December 15, 2021, 05:51:57 AM |
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Looking for some help regarding a transaction issue with Bitcoin - CLI Development & Technical Discussion
Looks like you are trying to spend non-existent UTXO. Address tb1qkvf2k3yd5mc46g…
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n/a | j2002ba2 | November 02, 2021, 04:16:11 AM |
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Compile Bitcoin first version on Linux - Windres issues Development & Technical Discussion
QuoteBlockchain starts at the genesis block, I don't think you can mine blocks f…
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n/a | j2002ba2 | November 02, 2021, 03:57:45 AM |
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implementing small wallet for embeded systems Development & Technical Discussion
1- can you suggest to me some libraries and source code in c which are designed…
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n/a | j2002ba2 | October 29, 2021, 05:26:58 PM |
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True Random for automatic offline address generator Development & Technical Discussion
For the intent the radio mustn't have good reception, the more interference the…
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n/a | j2002ba2 | October 19, 2021, 05:37:25 AM |
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Bitcoin Core RPC communication Development & Technical Discussion
bitcoin-cli resides in the same directory as bitcoind and bitcoin-qtYou communic…
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n/a | j2002ba2 | October 14, 2021, 02:58:52 PM |
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True Random for automatic offline address generator Development & Technical Discussion
For a BTC related project I need to create some addresses on automatic mode; the…
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n/a | j2002ba2 | October 12, 2021, 06:26:32 PM |
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Elliptic Curve Point Addition Question Development & Technical Discussion
Thanks so much, but I wanted to know if, during the calculation, it had to go pa…
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n/a | j2002ba2 | October 11, 2021, 11:26:14 AM |
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Elliptic Curve Point Addition Question Development & Technical Discussion
So my questions are:1. Is it possible to know when the point addition process ha…
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n/a | j2002ba2 | October 10, 2021, 05:34:14 AM |
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The Bitcoin Machine Development & Technical Discussion
I wonder how often you need to clean it if you use it 24/7.Too often And my rep…
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n/a | j2002ba2 | October 05, 2021, 01:30:47 PM |
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Regarding secp256k1's security Development & Technical Discussion
I had read that while the key size of secp256k1 is 256 bits, the security level…
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n/a | j2002ba2 | October 04, 2021, 12:27:40 PM |
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120 puzle. Share 1.2 BTC 50/50 !!! ASAP Please !!! Bitcoin Discussion
Is there any successful crackers craked an existing Bitcoin address. If this is…
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n/a | j2002ba2 | September 17, 2021, 09:32:02 AM |
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y coordinate calculation (PUBLIC KEY BITCOIN) Development & Technical Discussion
We take 8 in the finite field of 47. We'll multiply 8 by 13 times => 8*13 = 104,…
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n/a | j2002ba2 | September 07, 2021, 05:57:34 AM |
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Taproot proposal Development & Technical Discussion
Where can I see this op_success126? can you give me what opcodes have been repl…
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n/a | j2002ba2 | August 28, 2021, 09:42:36 AM |
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Curve point divided by integer - is it possible? Development & Technical Discussion
How can you defeat the system if you're able of multiplying two points instead o…
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n/a | j2002ba2 | August 25, 2021, 02:20:59 AM |
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Curve point divided by integer - is it possible? Development & Technical Discussion
I am building a secp256k1 class in Node.js to use in my tools, and I know that n…
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n/a | j2002ba2 | August 24, 2021, 08:15:57 AM |
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Taproot proposal Development & Technical Discussion
I know, but can you tell me the specific meaning of tapscript (Many previously d…
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n/a | j2002ba2 | August 24, 2021, 05:33:01 AM |
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Taproot proposal Development & Technical Discussion
I read the code, but I didn’t understand what is the purpose of this upgrade of…
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n/a | j2002ba2 | August 23, 2021, 10:45:49 AM |
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Idea for a watchdog fork Development & Technical Discussion
... quantum-resistant ...What you think?Creating quantum-resistant crypto algori…
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n/a | j2002ba2 | August 20, 2021, 07:52:26 AM |
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Why doesn't bitcoin have a "freeze" function? Development & Technical Discussion
The extra 94 96 bits usually seen as minor security weakness since 1 private key…
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n/a | j2002ba2 | August 12, 2021, 07:16:59 AM |
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Brute-forceable puzzle - free crypto for whoever manages to crack it Development & Technical Discussion
It looks more like security through obscurity.As I wrote on my github:QuoteNote…
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n/a | j2002ba2 | August 03, 2021, 03:43:56 AM |
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Brute-forceable puzzle - free crypto for whoever manages to crack it Development & Technical Discussion
It is less than $500.For 12 word BIP39 on average every 16th try will have a val…
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n/a | j2002ba2 | August 02, 2021, 02:18:20 PM |
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[C#] Trying to implement EC Multiplication in pure code Development & Technical Discussion
This is a C# thing, it adds a leading zero when MSB of the top byte is one, some…
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n/a | j2002ba2 | July 29, 2021, 01:44:08 AM |
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[C#] Trying to implement EC Multiplication in pure code Development & Technical Discussion
Thank you!Your code works fine, there's just one thing which slips (?) the proce…
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n/a | j2002ba2 | July 28, 2021, 10:46:31 AM |
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[C#] Trying to implement EC Multiplication in pure code Development & Technical Discussion
...I could swear that ^n means raising to the power of n. But, it turns out that…
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n/a | j2002ba2 | July 28, 2021, 05:58:11 AM |
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[C#] Trying to implement EC Multiplication in pure code Development & Technical Discussion
Marked with red are some grievous mistakes. Blue are some missing parts.Since yo…
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n/a | j2002ba2 | July 27, 2021, 06:24:20 PM |
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Pubkey scaling/subtracting/other tips for reducing search time Development & Technical Discussion
So it works in the full range of 2^256 so what would be the expected operations?…
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n/a | j2002ba2 | July 27, 2021, 09:04:53 PM |
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How mempool.space calculates taproot checksum? Development & Technical Discussion
mempool.space line shows bech32 instead of the correct one - bech32m, which must…
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n/a | j2002ba2 | July 24, 2021, 04:37:12 PM |
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Mempool/mining question Development & Technical Discussion
A few months I made a dashboard with block data . If you click the button "Last…
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n/a | j2002ba2 | July 24, 2021, 04:00:19 PM |
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Does more seed words equal better security? Development & Technical Discussion
Allow me to rephrase. Yes, finding a valid Electrum seed requires 3 times the ha…
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n/a | j2002ba2 | June 29, 2021, 12:17:57 PM |
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Does more seed words equal better security? Development & Technical Discussion
So attacking a specific seed is easier for Electrum seeds, but if attacking any…
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n/a | j2002ba2 | June 29, 2021, 09:39:30 AM |
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Does more seed words equal better security? Development & Technical Discussion
Does this not making attacking an Electrum seed theoretically easier? (2132.58 v…
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n/a | j2002ba2 | June 29, 2021, 07:59:57 AM |
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Does more seed words equal better security? Development & Technical Discussion
The probability of a seed having the correct version prefix for a 3 byte prefix…
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n/a | j2002ba2 | June 27, 2021, 08:40:34 AM |
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Does more seed words equal better security? Development & Technical Discussion
The act of randomly choosing one of 2119.9 possibilities cannot magically have m…
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n/a | j2002ba2 | June 27, 2021, 03:55:13 AM |
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Does more seed words equal better security? Development & Technical Discussion
I read it, and looked at the source. It starts with 132 bits of entropy, but the…
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n/a | j2002ba2 | June 27, 2021, 02:34:03 AM |
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Does more seed words equal better security? Development & Technical Discussion
Aren't they 128 too, but with 8 bits of entropy?I assume you mean 8 bits of chec…
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n/a | j2002ba2 | June 26, 2021, 04:13:59 PM |
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[Table] All Lightning Network Threads In One Place Development & Technical Discussion
No additional column:Thread Title|Link|Date of Creation|lightning network, basic…
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n/a | j2002ba2 | June 24, 2021, 06:50:06 AM |
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[Table] All Lightning Network Threads In One Place Development & Technical Discussion
I don't have much experience working with tables. When I look at the thread in m…
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n/a | j2002ba2 | June 24, 2021, 05:38:54 AM |
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Question about v0.3 release Development & Technical Discussion
At that time there was already GPU mining https://bitcointalk.org/index.php?topi…
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n/a | j2002ba2 | June 21, 2021, 05:42:59 PM |
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Taproot proposal Development & Technical Discussion
please take some time to look at some block data. take block 687238 (full block)…
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n/a | j2002ba2 | June 12, 2021, 11:36:11 AM |
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Bitcoin public key integer arithmetics, help me Development & Technical Discussion
There cannot be integer arithmetic for secp256k1 curve, since it has no solution…
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n/a | j2002ba2 | June 08, 2021, 04:09:40 PM |
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Broadcasting the raw transaction encrypted? Development & Technical Discussion
Here is a list of some transaction broadcasting services: https://en.bitcoin.it/…
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n/a | j2002ba2 | June 08, 2021, 09:13:44 AM |
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Broadcasting the raw transaction encrypted? Development & Technical Discussion
Nodes share transactions in "plain text", nothing is encrypted. If you want to b…
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n/a | j2002ba2 | June 02, 2021, 05:38:03 PM |
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What's the reason for not being strict about Taproot witness program size? Development & Technical Discussion
Taproot is upgradable itself. From the announcement https://lists.linuxfoundatio…
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n/a | j2002ba2 | May 30, 2021, 08:54:30 AM |
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Taproot proposal Development & Technical Discussion
Pre-taproot nodes (and miners) will not relay or mine taproot spends.I forget th…
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n/a | j2002ba2 | May 28, 2021, 07:30:39 AM |
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Regular patterns in public keys Development & Technical Discussion
doubling in secp256k1 is equal to x/4 * (1 - 63/(x^3+7)) = x/4 * (x^3 - 56) / (x…
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n/a | j2002ba2 | May 25, 2021, 04:33:49 AM |
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Regular patterns in public keys Development & Technical Discussion
TL;DR: because 1+1=2doubling in secp256k1 is equal to x/4 * (1 - 63/(x^3+7)) = x…
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n/a | j2002ba2 | May 25, 2021, 03:00:33 AM |
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[C#] Trying to implement EC Multiplication in pure code Development & Technical Discussion
maybe you should use a library.For that particular function? For modinv only?Loo…
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n/a | j2002ba2 | May 22, 2021, 02:45:25 PM |
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[C#] Trying to implement EC Multiplication in pure code Development & Technical Discussion
When in ruby there are multiple assignments in one line, they are done in parall…
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n/a | j2002ba2 | May 22, 2021, 12:30:50 PM |
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[C#] Trying to implement EC Multiplication in pure code Development & Technical Discussion
You are missing an important point - the one at infinity (0,0).So three importan…
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n/a | j2002ba2 | May 22, 2021, 12:14:17 PM |
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