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1  Economy / Web Wallets / Does anyone have info on omniwallet current issues ? on: August 11, 2016, 09:22:53 AM

Not able to check a balance on nor log in.
Does anybody know what the reason is ?

2  Other / Meta / [Solved] Is it possible to "Strikethrough" a word in a topic's subject ? on: May 29, 2016, 02:20:38 PM
I'd like to know if it is possible to "Strikethrough" a word that is in the subject of topic.
Say in this thread's topic I would like word "possible" to become "possible".
How am I supposed to set about ?

3  Economy / Speculation / Bitcoin Is Soaring On Unprecedented Burst In Chinese Buying on: May 28, 2016, 09:36:25 PM

The reason behind sudden bitcoin price jump is enormous demand from China.
The Chinese have $30 trillions worth of deposits but they are afraid of devaluation of
their currency so they looking for ways to keep their savings secure.

4  Economy / Web Wallets / [Solved]W̶a̶r̶n̶i̶n̶g̶! Possibly huge flaw/disadvantage in New Blockchain Wallet on: May 28, 2016, 10:24:08 AM
EDIT: Update. There is a method to get hold of private keys.

Firstly I'm not sure if this is the right place to post it. If not, mods feel free to move it where it belongs.


Unless anyone can prove how dumb a blockhead I'm in that I can not find out how to export private keys from The New Blockchain Wallet I would like to warn the community  about impossibility accessing private keys created by The New Blockchain Wallet.

Long version

I've been using Blockchain Wallet every one and then since February 2013.
It's not my wallet of preference but sometimes in the event of circumstances it turned out to be handy. It's got quite
broad functionality: two factor authentication, importing private keys, signing a message to name just a few but
above all direct access to all private keys inside your wallet. So far so good.

Now sometime ago I noticed there was "Legacy Login" and "Login To The New Blockchain Wallet"

So I still could login to my old (legacy wallet) and it worked just as before but I was a bit curious about
The New Blockchain Wallet so I created fresh one.
I played around for a while getting accustom to the new design of UI and I could NOT find a way to get to my private keys.
Well that didn't bode well for controlling funds that could possibly ended up on one of my newly created addresses.
Despite of as lazy as I might've been I decided to contact support about the issue. There is an answer I got:

Thanks for trying out our new web wallet and for your feedback!

You can view your xPubs under Settings > Addresses > Show XPub. You can view the private keys for your imported addresses under Settings > Addresses > Manage Addresses for Imported Addresses > More Options > Private Key.

If you have any other issues, please don't hesitate to contact our support team they are happy to help!


Blockchain Quality Assurance Lead

Wow !  I can view the private keys for my imported addresses. Well for me that's obvious because otherwise I wouldn't be able to import
them in the first place but that's not what I was looking for. I wanted to find access to the private keys for the addresses that were created by
the wallet itself.
I contacted them two more times trying as hard and eloquently as I could about the predicament and receiving the exact same answer
each time. At that stage I gave up. I mean I wasn't locked out of any coins or tokens so no harm for me but anyone who is familiar with
bitcoin/crypto world should realize how dire consequences this feature or, to put it more precisely, the lack of it can have.

5  Other / Politics & Society / Police seek powers to access browsing history of UK computer users on: October 30, 2015, 01:04:55 PM

"Police have lobbied the government for the power to view the internet browsing history of every computer user in Britain ahead of the publication of legislation on regulating surveillance powers.

Senior officers want to revive the measures similar to those contained in the“snooper’s charter”, which would force telecommunications companies to retain for 12 months data that would disclose websites visited by customers, reported the Times."

6  Bitcoin / Bitcoin Discussion / Eric Voorhees on Keiser Report on: April 08, 2015, 10:24:32 AM
Max Keiser is hosting Eric Voorhees.
To skip first part fast forward to 11:36.
In the second half, Max interviews Erik Voorhees of about the past, present and future for bitcoin, the block chain and crypto currencies.


7  Other / Politics & Society / Paraphrased proposals by UK prime minister on: February 01, 2015, 02:42:48 AM
 * All Britons' communications must be easy for criminals, voyeurs and foreign spies to intercept

* Any firms within reach of the UK government must be banned from producing secure software

* All major code repositories, such as Github and Sourceforge, must be blocked

* Search engines must not answer queries about web-pages that carry secure software

* Virtually all academic security work in the UK must cease -- security research must only take place in proprietary research environments where there is no onus to publish one's findings, such as industry R&D and the security services

* All packets in and out of the country, and within the country, must be subject to Chinese-style deep-packet inspection and any packets that appear to originate from secure software must be dropped

* Existing walled gardens (like Ios and games consoles) must be ordered to ban their users from installing secure software

* Anyone visiting the country from abroad must have their smartphones held at the border until they leave

* Proprietary operating system vendors (Microsoft and Apple) must be ordered to redesign their operating systems as walled gardens that only allow users to run software from an app store, which will not sell or give secure software to Britons

* Free/open source operating systems -- that power the energy, banking, ecommerce, and infrastructure sectors -- must be banned outright

8  Bitcoin / Bitcoin Discussion / The second “Crypto War” and the future of the internet on: January 24, 2015, 01:43:50 PM

Interesting article in regards to cryptography in genaral, governments pushing
their own agendas and "technologists" resistance. Bitcoin mentioned briefly.

Feel free to comment.


The second “Crypto War” and the future of the internet

In the early 1990s, the first Crypto War began. With the release of Phil Zimmerman’s PGP in 1991, for the first time in history, anyone could encode and exchange a message that no law enforcement agency had the technical ability to intercept and decode.

Fearing that criminals would be able to hide their communications, the reaction of governments worldwide was swift. The United States, for instance, banned the export of what it deemed “strong crypto.” Early versions of Internet software such as Netscape’s Communicator browser and Lotus Notes came in two flavors: a Domestic version that supported strong 128-bit crypto and an International version that supported weak 40-bit crypto.

But the genie was out of the bottle. The math equations that powered both strong and weak crypto systems were identical and elegantly simple. The difference between strong and weak was merely the length of the keys they used. Regulating the length of a key — effectively akin to telling you that you’re not allowed to use a password that’s more than a certain number of characters — proved impossible. And, by the early 2000s, the technologists prevailed. Restrictions on the use and export of strong cryptosystems were largely dropped, and the first Crypto War came to a close.

First shots in the next Crypto War

History may attribute the Archduke Ferdinand moment that spawned the second Crypto War to a cheeky little smiley face, hand drawn on a United States National Security Agency diagram which was revealed to the public on October 30, 2013. On that day, the Washington Post published the diagram from the trove of secret documents revealed by former NSA contractor Edward Snowden.

Source: Washington Post, 30 October 2013

The document showed how the US was tapping Google’s private communication lines over which messages between the company’s data centers were being exchanged unencrypted. The cheeky smiley face denoted the place on Google’s infrastructure where crypto was “added and removed.” To the NSA, it was a clever way to sneak behind the strong crypto lines and capture messages where they weren’t encoded. To the technology industry, it was nothing short of a declaration of war.

The technologists fight back

Since then, the technologists have scrambled to add strong cryptographic protections even to those parts of their systems that were previously considered private. Apple, for instance, with the release of the latest version of the company’s iPhone software, has designed a messaging system where it doesn’t have a way of reading messages that pass between two users. If you’re using an up-to-date iPhone to send a text message to another iPhone user, and the little bubble containing your message is blue, then neither Apple, nor your ISP, nor any law enforcement agency tapping into the transmission line is likely able to read the contents of the message.

This intentional “blinding” of user content not only thwarts mass surveillance, but also many of the techniques of targeted law enforcement. If Apple doesn’t have the contents of their users’ messages, the company has no way of responding to a warrant requesting that content. Previously, companies like Apple, Google, Facebook, and others have acted as a centralized repository of user data that law enforcement could turn to during an investigation. As the second Crypto War heats up, these companies are engineering new ways to lock their users’ data away even from legal process.

And, again, as in the first Crypto War, the response from government has been swift. British Prime Minister David Cameron recently pledged that “modern forms of communication” should not be “exempt from being listened to.” Director of GCHQ Robert Hannigan urged that companies needed to help with allowing surveillance of their networks, describing social media networks as “a terrorist’s command-and-control network of choice.” And US FBI Director James Comey suggested companies should be required to design “intercept solutions” into their technologies.

Cryptography’s broad swath

While debate in the coming Crypto War will likely focus on the proper responsibilities of technology companies and law enforcement, it’s important to bear in mind the wide swath cryptography now cuts. Strong crypto’s implications to protect user privacy and create challenges for law enforcement surveillance are obvious. However, cryptography impacts other significant technology debates of our time.

For example, network neutrality — the idea that Internet Service Providers (ISPs) shouldn’t discriminate against or favor different services — is directly impacted by cryptography. By encrypting data as it moves across the wire, ISPs cannot inspect the contents of packets in order to discriminate between services. Cryptography also prevents ISPs from inserting tracking cookies in their users data streams, a practice some providers like Verizon have begun implementing in order to develop new advertising-based revenue streams.

Government regulation of Internet content also depends on controlling cryptographic content. Regimes that block certain content from entering their borders inherently need to inspect Internet traffic. In many instances where state actors have taken this approach, encrypted traffic is simply blocked outright since it cannot be inspected. That approach, of course, only works so long as a majority of Internet traffic is unencrypted. As more of the Internet adopts strong crypto, the ability of a regime to control what information flows across its borders is threatened.

Cryptography is even challenging traditional monetary systems. Bitcoin, the most popular of the so-called crypto currencies, depends on some of the same cryptographic algorithms that Apple uses to secure messages sent between iPhone users. Rather than Bitcoin’s money supply being controlled by a central bank, the value of the currency depends on the math behind the cryptography algorithm itself. Some governments have banned the use of Bitcoin, suggesting it poses an existential threat to their ability to regulate financial transactions. The challenge, however, just as in the first Crypto War, is that the algorithms are simple, widely known, and broadly used across many applications making it very difficult to put the genie back in the bottle.

Proceed with caution

Today, the technology industry is more powerful and better organized than it was when it won the first Crypto War. However, I am concerned that the industry underestimates the threat posed by regulators reluctant to give in to the broad use of strong crypto, and in doing so, give up some level of control. As we fight the coming Crypto War, it is important that the technology industry acknowledge the challenges of law enforcement and legitimate government interests at stake. And, at the same time, it is critical for government policy makers to educate themselves about the broad impact of strong crypto and the potential unintended consequences of trying to weaken it.

Author: Matthew Prince is Co-Founder & CEO of Cloudflare

Image: A security camera overlooks a man as he walks down a street in London November 2, 2006. REUTERS/Luke MacGregor
Posted by Matthew Prince - 11:17

All opinions expressed are those of the author. The World Economic Forum Blog is an independent and neutral platform dedicated to generating debate around the key topics that shape global, regional and industry agendas.

9  Bitcoin / Bitcoin Technical Support / Three zeros in txid in 0.9.1 - what do they mean ? on: April 30, 2014, 10:45:12 AM

I use Bitcoin Core 0.9.1 on Ubuntu and was just wondering what are they for ?
Any ideas ?

10  Bitcoin / Bitcoin Technical Support / Re: Update to latest on: April 23, 2014, 11:37:48 AM

I posted step by step guide here.
Good luck.

11  Bitcoin / Bitcoin Discussion / This day a year ago on: April 07, 2014, 04:04:30 PM

It is interesting to read through this thread which was started exactly one year ago when
bitcoin price in fiat started reaching a spectacular peak of $266.
Just to give you some insight I let myself quote some posts

To all of you panic buying because you missed the "greatest thing ever", mark this post, within 6 months you will be able to buy in much lower, I have a large buy order at $35 (just above the 2011 high).

if this were an established commodity like gold, copper, soybeans, or a currency cross, which I have been trading for 15 years, that is the smart buy point - not at $159

you just need to look at the naivete of the posts on this board to know this is a sucker rally.

"i'm loaning money to ....."
" I save $200 a month and im putting it all in bitcoins ...... "
"we are revolutionaries......."

good luck to all the future bitcoin millionaires :-)

Yeah, I also sold all bitcoins today (all 1318) and set buy order at $27. See you soon, suckers  Wink

I sold all my Bitcoin at $120 and set a buy order at $0.03

See you in a year, suckers Wink

So after a year has passed here we are despite all bad media coverage, governments/banks stuffling any bitcoin
related businesses, asic manufacturers taking preorders and not delivering on time if at all, couple of exchanges
disappearing with our bitcoins in thin air, and all those preachers telling us that bitcoin is a bubble/scam:
1 BTC sells for aroun 450 USD.

Bitcoin is never going to perish due to incredible community it has got.
So long live bitcoin !

12  Economy / Computer hardware / [SOLD] Burnin BitBurner XX x3 *UK only* Price reduced ! on: March 14, 2014, 12:25:16 PM
  Edit: price dropped and link added
  I have got 3 BitBurners boards from Burnin for sale.

Some technical details and useful information.

  They've been running smoothly since October. Hashing power is on
average 25Gh/s and at present difficulty of 4,250,217,920 they're mining
0.003 BTC per day.

  I run them on cgminer on Ubuntu 12.04 system but I set up bootable live
lubuntu 13.10 USB stick with fully configured cgminer 4.1.0 so if you are a
complete newbie that may save you some hassle with setting up/configuring.
This is only for your convenience and NOT to hack your computer so
you may as well totally disregard the USB stick which I am giving free of charge
and mine in your own environment. Included is also USB cable.

  Note: PSU is NOT included so you have to power it up with your own gear.

  I am asking for 0.1999 BTC 0.1499 BTC and prefer collection in person
(South West is my location) as this would enable me to demonstrate the goods are in perfect
working condition and save me time to disassemble the boards/fans and pack them securely for

Hashing away on my Ubuntu 12.10 system...

...and from live lubuntu USB stick

cgminer log after 646 hrs of hashing
13  Economy / Computer hardware / [SOLD] Cairnsmore1 - Quad XC6SLX150 Board on: May 10, 2013, 09:41:58 AM
I've got a Cairnsmore1 (4 x Spartan-6 XC6SLX150) FPGA board (serial number 62-0821) for sale.
I've been a pride owner of it since 11th of April. It's working perfectly well,
on average hashing away at the rate of 760 Mh/s with genuine Enterpoint bitstream,
BFGMiner 3.0.2 on linux Ubuntu 12.04
Fan hums nearly noiselessly.

All technical details and support materials can be found at:

Asking £520 ($800) plus shipping from UK.

Note: PSU is not included.
        The only thing that comes originally with the board is USB cable.

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