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1461  Bitcoin / Development & Technical Discussion / Re: Hardware accelerated bitcoind? on: November 25, 2013, 03:06:45 AM
But guys be fair in comparison Bitcoin will NEVER beat centralized systems for transactions. Decentralized will never beat centralized in number of transactions per second

Bitcoin wins epically in other aspects, just not this one.
okay... but that was never the topic of this discussion  Undecided
1462  Bitcoin / Development & Technical Discussion / Re: Hardware accelerated bitcoind? on: November 25, 2013, 01:35:11 AM
see:
Unless you're mining, the expensive part is ECDSA verification, not SHA256.

It is likely possible to implement it paralellized on the GPU with OpenCL, not sure though (also not how much you'd really win...), and it's not as easy as with SHA256.

According to Google at least one person tried to look into it before: http://stackoverflow.com/questions/12924059/extracting-a-part-of-openssl-into-one-single-preprocessed-source-file

It may be better to start from sipa's secp256k1 library instead of OpenSSL, as it is already more specialized.
1463  Bitcoin / Bitcoin Discussion / Re: Can bitcoin stop the NSA from reading our mail? on: November 25, 2013, 01:29:54 AM
We can sign a message using our private key, which can then be verified to have been signed by the owner of the key.
Can we encrypt a message with only a bitcoin address so that only the owner of the private key of that address can decrypt the digest? Huh
PGP already does that. the only change in your idea is using bitcoin addresses as keys.
1464  Bitcoin / Bitcoin Technical Support / Re: windows 7 or windows 8 for bitcoins on: November 24, 2013, 09:28:14 PM
2 questions: If i run ubuntu alongside windows, could windows malware infect the ubuntu?

Do you mean installing ubuntu from usb stick?  Wouldn't it be real slow if your entire os is on a usb stick?
1. Malware are Operating System specific, no operating system have the same vulnerabilities.
then again, a windows virus could plant a virus on the linux installation because it will have full control of the disk, so live cd or usb is best for security.
1465  Bitcoin / Bitcoin Technical Support / Re: Is there a client that connects to remote bitcoind? on: November 23, 2013, 02:10:56 AM
in bitcoind, you can use -rpcconnect=<ip> to control another bitcoin-qt/bitcoind node with rpc enabled.
1466  Bitcoin / Bitcoin Technical Support / Re: no confirms on many tranactions on: November 22, 2013, 04:20:17 PM
i read the topics but i still dont understand.
i did put a fee in setup to 0,00000001
but coisn are stil lnot confirmed and its been 4 days.
you obviously missed the part about putting enough fees. 1 satoshi = not enough. 0.001 btc = enough.

Not to nitpick or anything, but I was under the impression 0.0001BTC (3 zeroes after the decimal) was the minimum amount that miner's recognize as enough of a fee to get accelerated confirmations.

By paying 0.001 (2 zeroes), you are over paying on the fee unnecessarily.

Is this erroneous?

Yes. How much fee per kb is taken into account when prioritizing transactions. It's not a simple yes/no fee check.
1467  Bitcoin / Bitcoin Technical Support / Re: no confirms on many tranactions on: November 21, 2013, 10:04:39 PM
i read the topics but i still dont understand.
i did put a fee in setup to 0,00000001
but coisn are stil lnot confirmed and its been 4 days.
you obviously missed the part about putting enough fees. 1 satoshi = not enough. 0.001 btc = enough.
1468  Bitcoin / Bitcoin Technical Support / Re: kryptoanalysis for sha(sha(sha.....))) and CPU error rate. on: November 20, 2013, 08:24:22 PM
see: https://en.wikipedia.org/wiki/Key_stretching
1469  Bitcoin / Bitcoin Technical Support / Re: 41 hours to get into blockchain! on: November 20, 2013, 08:23:38 PM
Because you didn't pay a fee. Or basically, you were cheap, that's why.
Does Bitcoin allow retracting transactions from the network before someone places them in the blockchain?
other than nodes "forgetting" transactions when they restart, no.
1470  Bitcoin / Bitcoin Discussion / Re: just been released from prison to find out I'm rich on: November 19, 2013, 11:33:08 PM
gr8b8m8
1471  Bitcoin / Bitcoin Technical Support / Re: Is my qt wallet .dat file secure? on: November 19, 2013, 09:33:06 PM
or you can, you know... use the built in wallet encryption
1472  Economy / Speculation / Re: total scam on: November 19, 2013, 03:48:03 PM
gr8b8m8
1473  Bitcoin / Bitcoin Technical Support / Re: Transactions wait longer BUT Pools generate small blocks on: November 19, 2013, 03:23:56 PM
To fix the issue, pay more fees.

Is it extortion? There were a lot of 100K blocks, plenty of room for my transaction. I hope pool owners won't cooperate until a good alternative of Bitcoin pops up.
Miners have no obligation to include transactions.
1474  Bitcoin / Bitcoin Technical Support / Re: "This connection is untrusted" - bitaddress.org on: November 17, 2013, 09:06:16 PM
download in Windows from github, put on separate USB, then boot via Ubuntu USB, leave Internet unconnected, verify the file hash on the ubuntu machine, then run the bitaddress file from separate USB
1475  Economy / Trading Discussion / Re: western union chargeback on: November 17, 2013, 08:02:14 PM
see: https://bitcointalk.org/index.php?topic=14632.0
Quote
Western Union (they reportedly will sue the recipient to recover money in some cases)
1476  Bitcoin / Bitcoin Technical Support / Re: Available and modern Bitcoin solutions for applications on: November 17, 2013, 05:07:59 PM
Bitcoind
  • Apparently not very stable in server environments, requires constant restarts. Also requires considerable amount of memory.
  • Doesn't scale with its accounts implementation https://en.bitcoin.it/wiki/Accounts_explained (Would love to hear up-to-date information regarding this.)
yes, the accounts feature in bitcoind sucks, but you can get around that by creating your own accounts wrapper around bitcoin. also, bitcoind doesn't crash often if you have lots of ram (4 gb?).
1477  Bitcoin / Project Development / Re: C# Application to fast "try" to break a public address and get private address on: November 16, 2013, 08:22:45 PM
Im 10 year experience analyst-programmer:

.NET Nivel avanzado
C++ Nivel alto
Java Nivel alto
C# Nivel alto
C
PHP
ASP.NET
J2EE
JavaScript
jQuery
AJAX
JSP
Delphi
Visual Studio
VBA
XML
ITIL
UML
CMDB
IIS
Apache
Web Services
SQL
Oracle
SQL Tuning
PL/SQL
MySQL
SQL Server
Load Balancing
High Availability
Sockets
Network Administration
Database Design
Database Management
SOAP
SSL
Digital Signatures
Digital Certificates
Business Process...
User Interface Design
JSF
Primefaces
Hibernate
Alfresco
RMI
Struts
Microsoft Excel
d3.js
congratulations, you can compile a list of buzzwords.
1478  Bitcoin / Bitcoin Discussion / Re: What if Gov puts the Dollar and Bitcoin on the Silver Standard, 1 to 1? on: November 14, 2013, 03:34:28 AM
The only reason people traded their gold/silver for bills was because metals were hard to safeguard and inconvenient for trade. this is not true with bitcoin. Therefore no one would trade their bitcoins for "bitcoin bills" issued by the US government, except in very small amounts for convenience purposes (microtransactions, physical payments, etc)
1479  Bitcoin / Bitcoin Discussion / Re: Time to Boycott all US Companies on: November 14, 2013, 03:28:35 AM
>visiting, reading, or even copying what reddit says ever

Seriously?
>having a hardon for hating reddit
really?
1480  Economy / Service Discussion / Re: what's a good bitcoin exchange to trade at? on: November 14, 2013, 01:58:12 AM
cavirtex has fast withdraw times. Non canadian exchanges are not ideal because they lack payment methods that have less fees (direct withdraw, billpay, etc.)
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