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How does Bitcoin Core find the main chain during initial block sync? Development & Technical Discussion
I've been glancing through the Bitcoin Core code, but it'll take me awhile to pi…
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n/a | fpgaminer | June 28, 2017, 12:58:32 PM |
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BitcoinVoice: Vote on polls using Bitcoin signatures with pseudo-Proof of Stake Project Development
QuoteThe question is whether people would trust a smaller site to protect their…
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n/a | fpgaminer | June 21, 2017, 03:30:17 PM |
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BitcoinVoice: Vote on polls using Bitcoin signatures with pseudo-Proof of Stake Project Development
I just finished the alpha version of www.BitcoinVoice.comThe recent debates abou…
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n/a | fpgaminer | June 21, 2017, 12:08:36 PM |
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Black Arrow 28nm 100Ghash Bitcoin ASIC from $1.99/GH/s, miners from $2.97/GH/s Hardware
Thank you for the update, blackarrow.
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n/a | fpgaminer | March 05, 2014, 05:35:15 PM |
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Black Arrow 28nm 100Ghash Bitcoin ASIC from $1.99/GH/s, miners from $2.97/GH/s Hardware
QuoteI don't think you would have been able to put both rigs on a single circuit…
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n/a | fpgaminer | February 26, 2014, 08:15:14 PM |
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Black Arrow 28nm 100Ghash Bitcoin ASIC from $1.99/GH/s, miners from $2.97/GH/s Hardware
QuoteFrom BA:27/02/2014 - Production UpdateThank you for posting the update, goo…
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n/a | fpgaminer | February 26, 2014, 07:34:03 PM |
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Black Arrow 28nm 100Ghash Bitcoin ASIC from $1.99/GH/s, miners from $2.97/GH/s Hardware
Minion ASIC - Tapeout complete23/02/2014: We are happy to report that VeriSilico…
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n/a | fpgaminer | February 23, 2014, 05:38:47 PM |
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Private Key cracker apparently demonstrated Development & Technical Discussion
Quotenor do I think he could be called a scammer for selling software, unless he…
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n/a | fpgaminer | January 29, 2014, 01:16:42 AM |
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Private Key cracker apparently demonstrated Development & Technical Discussion
Here's what's going on. Evil-Knievel has pre-computed a couple points on the se…
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n/a | fpgaminer | January 28, 2014, 08:49:42 PM |
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Black Arrow announces 28nm 100Ghash Bitcoin ASIC from $1.49/Ghash Hardware
@vs3, I'm not much of an analog guy, but isn't it difficult for a QFN package to…
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n/a | fpgaminer | December 01, 2013, 03:12:37 AM |
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Black Arrow announces 28nm 100Ghash Bitcoin ASIC from $1.49/Ghash Hardware
We've added preliminary renders of how (half of) X3 will look like. Very sexy, t…
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n/a | fpgaminer | October 24, 2013, 08:29:37 PM |
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Hacking The KNC Firmware: Overclocking Mining support
Okay, I tried tweaking the cgminer.sh script to setup my board with a PLL settin…
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n/a | fpgaminer | October 24, 2013, 05:23:43 PM |
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Hacking The KNC Firmware: Overclocking Mining support
QuoteTake a look in /etc/init.d/cgminer.sh and you will have your answer to why…
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n/a | fpgaminer | October 24, 2013, 04:28:47 PM |
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Hacking The KNC Firmware: Overclocking Mining support
Well I bit the bullet and tweaked the 0x86 register on one die. I tried a few d…
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n/a | fpgaminer | October 20, 2013, 07:02:23 AM |
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Hacking The KNC Firmware: Overclocking Mining support
EEPROM Checksum AlgorithmI finally reverse engineered the algorithm KNC is using…
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n/a | fpgaminer | October 20, 2013, 03:25:08 AM |
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Hacking The KNC Firmware: Overclocking Mining support
Someone was kind enough to share their EEPROM dumps with me. The basic structur…
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n/a | fpgaminer | October 19, 2013, 08:49:06 AM |
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Hacking The KNC Firmware: Overclocking Mining support
Since KNC themselves have released no information on how to overclock our units.…
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n/a | fpgaminer | October 19, 2013, 07:18:30 AM |
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The "What Black Arrow does not want you to know" thread Hardware
QuoteFor the same reason I'm offering up this other tidbitI ask, because it look…
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n/a | fpgaminer | October 17, 2013, 11:53:32 PM |
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The "What Black Arrow does not want you to know" thread Hardware
Quotehttp://www.blackarrowsoftware.com/store/about-us-en.htmlhttps://www.faceboo…
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n/a | fpgaminer | October 17, 2013, 09:55:02 PM |
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The "What Black Arrow does not want you to know" thread Hardware
Quoteso asking someone to make some pretty renders of possible boxes tells me th…
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n/a | fpgaminer | October 17, 2013, 06:31:48 PM |
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The "What Black Arrow does not want you to know" thread Hardware
I love a witchhunt as much as the next guy, but blackarrow already responded to…
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n/a | fpgaminer | October 17, 2013, 03:45:14 PM |
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Bitburner Fury - Hashrate Protection Hardware
QuoteThanks - some question left for me now. You got a PSU for the boards??? I h…
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n/a | fpgaminer | October 16, 2013, 01:30:17 AM |
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BitFury 16 Chip Boards 41.7Gh/s 6.3BTC or $999 Hardware
[Warning, useless post]Woah, woah, woah. Back that truck up there, buddy. You'…
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n/a | fpgaminer | October 16, 2013, 12:03:14 AM |
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Bitburner Fury - Hashrate Protection Hardware
Finally got my order on Monday. It's all set up and hashing. Funnily enough, I…
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n/a | fpgaminer | October 15, 2013, 09:23:02 PM |
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KnC news Hardware |
n/a | fpgaminer | October 15, 2013, 08:50:10 PM |
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Bruce Schneier: Insecurities in the Linux /dev/random Development & Technical Discussion
/dev/random's maintainer responds.
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n/a | fpgaminer | October 15, 2013, 09:50:54 AM |
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KNC ASIC Users Thread & FAQ Hardware
Just updated to 0.95; seems to have fixed my problems. Went from 440GH/s, 16% e…
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n/a | fpgaminer | October 11, 2013, 04:35:48 PM |
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KNC ASIC Users Thread & FAQ Hardware
Reporting my experience so far:I have one of the duds. v0.9.4, case off, box fa…
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n/a | fpgaminer | October 11, 2013, 02:08:01 AM |
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[bitcoind] [brainwallet.org] Verify message, different results for same message Development & Technical Discussion
Brainwallet.org is borked. I commented on other issues with signing in this thr…
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n/a | fpgaminer | October 11, 2013, 01:15:03 AM |
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Isn't the output of SHA256 *slightly* too big to use for a private key? Development & Technical Discussion
Quote but is this what the default Bitcoin behavior is?What do you mean by "defa…
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n/a | fpgaminer | October 09, 2013, 10:43:42 PM |
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Deterministic Usage of DSA and ECDSA Digital Signature Algorithms (RFC 6979) Development & Technical Discussion
QuoteI'd like to contribute some test vectors of my own. The test vectors are fu…
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n/a | fpgaminer | October 08, 2013, 03:49:39 PM |
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Deterministic Usage of DSA and ECDSA Digital Signature Algorithms (RFC 6979) Development & Technical Discussion
Quoteif you look at the current code in git master, it just subtracts order/2 wh…
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n/a | fpgaminer | October 08, 2013, 06:35:49 AM |
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Deterministic Usage of DSA and ECDSA Digital Signature Algorithms (RFC 6979) Development & Technical Discussion
QuoteTried both with the same result (invalid sigs).This works for me:Code: if s…
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n/a | fpgaminer | October 08, 2013, 06:22:11 AM |
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NSA and ECC Development & Technical Discussion
QuoteSo x=0, means y2=7, which has no solution for an integer y, so there is no…
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n/a | fpgaminer | October 07, 2013, 06:30:56 PM |
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Black Arrow announces 28nm 100Ghash Bitcoin ASIC from $1.49/Ghash Hardware
QuoteShenzhen, 26 September, 2013: Black Arrow is proud to announce that it has…
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n/a | fpgaminer | October 01, 2013, 01:22:50 PM |
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Black Arrow announces 28nm 64Ghash Bitcoin ASIC from $1.99/Ghash Hardware
WARNING: When registering for their website, your password gets emailed to you.…
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n/a | fpgaminer | September 23, 2013, 06:27:01 PM |
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Obfuscation - the overlooked, simplest and most secure bitcoin wallet security Development & Technical Discussion
Forgive me if this has already been mentioned. The method described is, roughly…
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n/a | fpgaminer | September 23, 2013, 05:38:04 PM |
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Obfuscation - only to be used by wizards in magic spells, not cryptography Development & Technical Discussion
QuoteAsking a user to come up with a password with sufficient entropy is a chall…
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n/a | fpgaminer | September 23, 2013, 10:49:03 PM |
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Black Arrow announces 28nm 64Ghash Bitcoin ASIC from $1.99/Ghash Hardware
QuoteYou don't immediately change your password when that happens?I would, but i…
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n/a | fpgaminer | September 23, 2013, 06:56:32 PM |
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Obfuscation - the overlooked, simplest and most secure bitcoin wallet security Development & Technical Discussion
QuoteAnd in the area's I am an expert, I would not stomp - like quite a few peop…
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n/a | fpgaminer | September 23, 2013, 06:51:02 PM |
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[BitCentury] Metabank 120Gh 65nm Pre-Order Proxy [CLOSED] Hardware
Well, that explains what happened on my DHL tracking. It got me all excited too…
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n/a | fpgaminer | September 23, 2013, 06:02:22 PM |
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Obfuscation - the overlooked, simplest and most secure bitcoin wallet security Development & Technical Discussion
QuoteIt seems it's too much to ask experts to spend a few minutes to explain som…
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n/a | fpgaminer | September 23, 2013, 05:51:35 PM |
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NSA and ECC Development & Technical Discussion
Here's another interesting data point. If we search all primes of the form 2**2…
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n/a | fpgaminer | September 22, 2013, 11:25:07 PM |
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NSA and ECC Development & Technical Discussion
QuoteI guess we can narrow down our investigation to the G point and the P (sinc…
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n/a | fpgaminer | September 22, 2013, 11:04:06 PM |
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NSA and ECC Development & Technical Discussion
QuoteThat is past my expertise, but a check should be made that b < 7 wouldn't h…
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n/a | fpgaminer | September 21, 2013, 06:46:11 PM |
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[BitCentury] Metabank 120Gh 65nm Pre-Order Proxy [CLOSED] Hardware
Keep up the great work, BitCentury!
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n/a | fpgaminer | September 21, 2013, 09:10:50 PM |
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NSA and ECC Development & Technical Discussion
Quoteand specifically about these five constants:They've already been explained…
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n/a | fpgaminer | September 21, 2013, 04:10:58 AM |
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[BitCentury] Metabank 120Gh 65nm Pre-Order Proxy [CLOSED] Hardware
Thanks for all the hard work, BitCentury crew! Quote3. We have packed 1 unit fo…
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n/a | fpgaminer | September 20, 2013, 04:02:48 AM |
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Message Signing Issues Development & Technical Discussion
QuoteI've tried fixing things myself, but I'm not even sure what to use as a ref…
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n/a | fpgaminer | September 20, 2013, 12:00:03 AM |
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[BitCentury] Metabank 120Gh 65nm Pre-Order Proxy [CLOSED] Hardware
QuoteThere you go:Oh, thank you. Guess I got too excited and didn't read the wh…
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n/a | fpgaminer | September 19, 2013, 04:34:47 AM |
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[BitCentury] Metabank 120Gh 65nm Pre-Order Proxy [CLOSED] Hardware
Man this is moving fast! Great work, BitCentury!Any estimates on when units wil…
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n/a | fpgaminer | September 19, 2013, 03:28:55 AM |
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[BitCentury] Metabank 120Gh 65nm Pre-Order Proxy [CLOSED] Hardware
QuoteAwesome news! We picked up ALL units late this evening, or should I say mor…
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n/a | fpgaminer | September 18, 2013, 07:36:48 PM |
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[BitCentury] Metabank 120Gh 65nm Pre-Order Proxy [CLOSED] Hardware
I like this Timur guy. Give him a high five for me!QuoteSo customers in the USA…
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n/a | fpgaminer | September 18, 2013, 02:53:41 AM |
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[BitCentury] Metabank 120Gh 65nm Pre-Order Proxy [CLOSED] Hardware
Have I mentioned that these frequent updates are great?By the way, have you seen…
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n/a | fpgaminer | September 17, 2013, 04:26:19 AM |
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Modelling and Simulating Hash Functions Development & Technical Discussion
QuoteBut bare single SHA-2 can accept as input an infinite set, right?I see that…
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n/a | fpgaminer | September 17, 2013, 04:09:49 AM |
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Modelling and Simulating Hash Functions Development & Technical Discussion
Programmer Adventures in Modelling and Simulating Hash FunctionsI've been curiou…
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n/a | fpgaminer | September 16, 2013, 10:55:48 PM |
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New Pywallet 0.0.0 Development & Technical Discussion
Very cool to Pywallet getting some much needed spring cleaning. Besides its obv…
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n/a | fpgaminer | September 16, 2013, 06:49:48 PM |
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NSA and ECC Development & Technical Discussion
QuoteI believe the order #E(Fp) of our elliptic curve n is prime and is in fact…
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n/a | fpgaminer | September 15, 2013, 05:15:40 PM |
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Deterministic Usage of DSA and ECDSA Digital Signature Algorithms (RFC 6979) Development & Technical Discussion
Using my own implementation of RFC 6979 on top of warner's ECDSA code, I generat…
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n/a | fpgaminer | September 14, 2013, 01:58:51 AM |
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Why isn't there a single purpose bitcoin hardware wallet ??? Hardware wallets
QuoteThe ability to flashing the firmware is an attack vector, as is the existen…
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n/a | fpgaminer | September 14, 2013, 12:42:11 AM |
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[BitCentury] Metabank 120Gh 65nm Pre-Order Proxy [CLOSED] Hardware
Great news to hear! I hope you have time to also enjoy the trip; I'll bet Mosco…
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n/a | fpgaminer | September 13, 2013, 11:47:31 PM |
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REWARD offered for hash collisions for SHA1, SHA256, RIPEMD160 and other Development & Technical Discussion
This is both incredibly fascinating, and a beautiful show of the kinds of innova…
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n/a | fpgaminer | September 13, 2013, 03:48:16 AM |
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@Friedcat: A forgotten promise? Hardware
Quote.... we bought something, we've not received it. Why is that so difficult f…
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n/a | fpgaminer | September 12, 2013, 10:06:05 PM |
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BIP0032 HD Wallet private key derivation incorrect? Development & Technical Discussion
Good catch! Looks like a typo to me. I'd edit it, but I'm not sure about the r…
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n/a | fpgaminer | September 12, 2013, 07:50:41 AM |
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BIP0032 HD Wallet private key derivation incorrect? Development & Technical Discussion
QuoteThe public addresses that are used are created by adding (point addition) X…
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n/a | fpgaminer | September 11, 2013, 08:11:19 PM |
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NSA and ECC Development & Technical Discussion
QuoteHow large are Lamport signatures with security equal to 256 bit ECDSA?256-b…
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n/a | fpgaminer | September 11, 2013, 07:20:35 PM |
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Project Evil Genius – Custom SHA2-256 Circuits on a FPGA Hardware
Hi,Thanks! So the only chance to have performance boost is to fit 2 or more sha…
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n/a | fpgaminer | September 11, 2013, 05:11:21 AM |
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[BitCentury] Metabank 120Gh 65nm Pre-Order Proxy [CLOSED] Hardware
Keep them updates comin'! It helps distract me from watching the Oculus shippin…
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n/a | fpgaminer | September 10, 2013, 11:40:47 PM |
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Official BITMINE CoinCraft series 28nm ASIC miners thread Hardware
QuoteWith diff. Going up 20% each 12 daysIt's been going up 30% each readjustmen…
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n/a | fpgaminer | September 10, 2013, 07:28:32 AM |
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Deterministic Usage of DSA and ECDSA Digital Signature Algorithms (RFC 6979) Development & Technical Discussion
QuotePull request adding RFC 6979 into python-ecdsa: https://github.com/warner/p…
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n/a | fpgaminer | September 09, 2013, 08:33:07 PM |
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Deterministic Usage of DSA and ECDSA Digital Signature Algorithms (RFC 6979) Development & Technical Discussion
I reached out to Colin Percival (who wrote scrypt, for example) for his thoughts…
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n/a | fpgaminer | September 09, 2013, 07:55:01 PM |
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Deterministic Usage of DSA and ECDSA Digital Signature Algorithms (RFC 6979) Development & Technical Discussion
QuoteHow do you actually know that it is running the open source firmware and no…
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n/a | fpgaminer | September 09, 2013, 07:27:04 PM |
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All Bitcoind / Bitcoin-qt nodes failing to come up. Workaround inside! Development & Technical Discussion
QuoteRight now the version is meaningless: all values should work in blocks. Th…
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n/a | fpgaminer | September 09, 2013, 06:00:36 PM |
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ECDSA Weak signing Development & Technical Discussion
QuoteSure it does. For example, with OpenSSL it would force you to add your own…
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n/a | fpgaminer | September 09, 2013, 05:55:01 PM |
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All Bitcoind / Bitcoin-qt nodes failing to come up. Workaround inside! Development & Technical Discussion
gmaxwell, I'm curious about a discrepancy between the wiki's Protocol Specificat…
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n/a | fpgaminer | September 09, 2013, 08:19:49 AM |
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NSA and ECC Development & Technical Discussion
QuoteI was wondering if it might be a good idea to have everyone start including…
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n/a | fpgaminer | September 09, 2013, 07:16:20 AM |
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[ANN] Bitfury is looking for alpha-testers of first chips! FREE MONEY HERE! Hardware
QuoteIf you go with the Hakko, get a couple of extra T18-B tips for it. That st…
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n/a | fpgaminer | September 09, 2013, 04:40:25 AM |
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For fun: the lowest block hash yet Development & Technical Discussion
QuoteNot doubting this, just curious what the actual math is convincing you that…
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n/a | fpgaminer | September 09, 2013, 02:52:22 AM |
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BIP0032 HD Wallet private key derivation incorrect? Development & Technical Discussion
QuoteYou need to treat IL as an EC private key. If it is == 0 or >= n then it is…
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n/a | fpgaminer | September 08, 2013, 11:06:33 PM |
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BIP0032 HD Wallet private key derivation incorrect? Development & Technical Discussion
QuoteI wrote one of the Java implementations that is also listed on the BIP page…
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n/a | fpgaminer | September 08, 2013, 07:30:31 AM |
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Can HMAC be used for 2FA? Development & Technical Discussion
QuoteAnother case of "Hey, I have an idea" but someone already invented it 30 ye…
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n/a | fpgaminer | September 08, 2013, 02:53:28 AM |
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BIP0032 HD Wallet private key derivation incorrect? Development & Technical Discussion
QuoteI wrote one of the Java implementations that is also listed on the BIP page…
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n/a | fpgaminer | September 07, 2013, 07:39:25 PM |
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Can HMAC be used for 2FA? Development & Technical Discussion
Beginner's Guide to TOTPQuoteIn fact, you can even use a regular hash function w…
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n/a | fpgaminer | September 07, 2013, 07:24:17 PM |
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RNG using Block informations Development & Technical Discussion
Could you describe a specific use case? i'm having a hard time imaging what the…
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n/a | fpgaminer | September 07, 2013, 06:08:36 AM |
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[BitCentury] Metabank 120Gh 65nm Pre-Order Proxy [CLOSED] Hardware
Thank you for the update, digitalmagus. I'm fine with the no-refund policy; exp…
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n/a | fpgaminer | September 06, 2013, 10:53:39 PM |
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Avalon ASIC users thread Hardware
I think it's silly for ckolivas not to have a working and complete Avalon, espec…
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n/a | fpgaminer | September 05, 2013, 04:23:42 PM |
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(Successful) Dictionary Attack Against Private Keys Bitcoin Discussion
On a related note, I thought about a partial solution to this problem of weak pa…
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n/a | fpgaminer | September 05, 2013, 03:41:38 AM |
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BIP0032 HD Wallet private key derivation incorrect? Development & Technical Discussion
(mod n) is typical notion, and it implies that all the arithmetic in the precedi…
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n/a | fpgaminer | September 04, 2013, 06:05:33 PM |
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x^3+7=0 ? Development & Technical Discussion |
n/a | fpgaminer | September 04, 2013, 06:12:53 AM |
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Deterministic Usage of DSA and ECDSA Digital Signature Algorithms (RFC 6979) Development & Technical Discussion
Wonderful and insightful comments, gmaxwell; thank you.Quotebut in a hardware wa…
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n/a | fpgaminer | September 04, 2013, 05:50:38 AM |
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Deterministic Usage of DSA and ECDSA Digital Signature Algorithms (RFC 6979) Development & Technical Discussion
Here are my thoughts: http://permalink.gmane.org/gmane.comp.bitcoin.devel/2734Yu…
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n/a | fpgaminer | September 04, 2013, 01:16:33 AM |
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Validate public key + Verify public key matches address - PHP/JS Development & Technical Discussion
2) Given a public key, you can calculate the address. Check this wiki page for…
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n/a | fpgaminer | September 01, 2013, 04:52:41 PM |
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June 1 and before my ass Avalon REFUNDS for all. Hardware
QuoteDo you know what a shit-barometer is Bubbles? It measures the shit-pressure…
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n/a | fpgaminer | August 31, 2013, 02:54:28 PM |
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[CLOSED] Avalon ASIC chip distribution Hardware
QuoteI don't think I understand this, there are 400000 chips coming, but NOT for…
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n/a | fpgaminer | August 31, 2013, 02:52:17 PM |
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Avalon ASIC users thread Hardware
QuoteI noticed the HW rate is higher than the "Accepted" shares. Accepted is a u…
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n/a | fpgaminer | August 31, 2013, 02:16:49 PM |
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Bitcoin Hardware Wallet [Last Updated: August 31st, 2013] Project Development
Bitcoin Hardware WalletCodename: Bitcoin Titanby: FPGAMinerProtects Your Bitcoin…
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n/a | fpgaminer | February 14, 2013, 05:48:23 AM |
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Bitcoin Hardware Wallet [Last Updated: June 25th, 2013] Project Development
It begins...Today I began using the Titan on the live Bitcoin network. From now…
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n/a | fpgaminer | August 31, 2013, 04:43:52 AM |
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What's new in version 2 of Block header message ? Development & Technical Discussion
QuoteYeah - At block 227930, the previous 1000 contained the supermajority of 95…
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n/a | fpgaminer | August 31, 2013, 02:53:35 AM |
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[BitCentury] Metabank 120Gh 65nm Pre-Order Proxy [CLOSED] Hardware
QuoteChip simply doesn't work on 3gh (this is not necessarily true), and if you…
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n/a | fpgaminer | August 31, 2013, 12:02:33 AM |
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What's new in version 2 of Block header message ? Development & Technical Discussion
Quote95% rule ("Point of no return"): If 950 of the last 1,000 blocks are versio…
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n/a | fpgaminer | August 30, 2013, 10:16:00 PM |
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