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3281  Bitcoin / Bitcoin Discussion / Re: Wallet Security on: October 29, 2013, 11:30:04 AM
If you are going to go this route, it might be wise to completely remove the wireless adapter drivers, and connect to the Internet via hard wire. That way, you know for a fact when it is going online.

That won't help. He wants to use a computer to store coins which is allowed to connect to the Internet at various times. If your computer is compromised it only takes milliseconds to transfer sensitive information somewhere else once a connection is given. That's why the strongest options are use something like Armory with an offline computer, a completely offline paper wallet, or the Trezor.

Yes.  I bought an old laptop and installed Lubuntu and took it offline and it never goes online.  I installed Armory and do all transactions offline.

How much RAM does Armory need?
3282  Bitcoin / Bitcoin Discussion / Re: Wallet Security on: October 29, 2013, 11:28:58 AM
An idea I have had for a brain wallet that doesn't require too much memory...

Choose a particular book and make the private key from, say, the third letter of every fifth page, up to x

Then add the ISBN number in between each letter.  

I'd considered some permutation of that strategy.  I'll bet there are a lot of passwords out there that have characters taken from noteworthy and widely distrubuted texts like the Christian bible or U.S. constitution.  I never considered it enough to research how much disparity there may be between various re-prints and such.  I'm guessing that a rainbow table like construct could be pretty effective against such a strategy, but my math (and interest and knowledge of table methods) isn't strong enough to analyze it in detail.

Someone who has the knowledge says brainwallets with passphrases chosen by human beings are a terrible idea:

https://bitcointalk.org/index.php?topic=311000.msg3345309#msg3345309

Use electrum if you want a brainwallet.
3283  Local / India / Re: UnoWallet - Instant Bitcoin Wallet on: October 28, 2013, 10:31:14 PM
but URL's sent via HTTPS are NOT encrypted. HTTPS encrypts data that are only sent through POST request.
In the sense, SSL encrypts only the HTTP packets and doesnot encrypt the HTTP headers (which includes URL). Hence it is called Transport Layer Security (TLS)

URL's *are* encrypted when you access a website via HTTPS. First the encrypted connection is negotiated then requests for web pages and hostnames are sent over:

http://stackoverflow.com/questions/499591/are-https-urls-encrypted

This is why you've traditionally been restricted to one HTTPS domain per IP address because the host name header is sent after the SSL connection has been established. That changes with SNI of course.

URL's are logged by the user's browser and the destination server if it maintains logs. Intermediate servers can't log them because they are encrypted.

This is definitely False. If you have access to any webserver, please go through the access logs.
My statement still holds good. URLS ARE NOT ENCRYPTED IN SSL V3.0 / TLS 1.0 / 1.1


URLs are encrypted. Why do you persist in spouting nonsense? And as far as web servers go I've stated clearly above that the destination server may keep logs of the URLs. You've even quoted that without reading it.
3284  Local / India / Re: UnoWallet - Instant Bitcoin Wallet on: October 28, 2013, 07:49:27 PM
but URL's sent via HTTPS are NOT encrypted. HTTPS encrypts data that are only sent through POST request.
In the sense, SSL encrypts only the HTTP packets and doesnot encrypt the HTTP headers (which includes URL). Hence it is called Transport Layer Security (TLS)

URL's *are* encrypted when you access a website via HTTPS. First the encrypted connection is negotiated then requests for web pages and hostnames are sent over:

http://stackoverflow.com/questions/499591/are-https-urls-encrypted

This is why you've traditionally been restricted to one HTTPS domain per IP address because the host name header is sent after the SSL connection has been established. That changes with SNI of course.

URL's are logged by the user's browser and the destination server if it maintains logs. Intermediate servers can't log them because they are encrypted.
3285  Bitcoin / Development & Technical Discussion / Re: How to verify the ownership of Bitcoins? on: October 28, 2013, 01:21:45 PM
Most of the people have their Bitcoins in wallets spread across multiple addresses, right? How would a single tx be sufficient to verify the ownership? This wouldn't work for paper wallets either, right?

I guess this problem applies to verifying by signing as well. Also, I'm not sure how well signing is supported by hosted wallets and how well Bitcoin users know this feature. But signing would work for paper wallets, correct?

Signing doesn't cost anything other than time to do it. So just have them sign a message with multiple addresses.

You can sign as long as you have access to the private key. In the case of a paper wallet you will need to load it into a client and then sign using that. In the case of hosted wallets it depends on whether they give you access to the private key or not. blockchain.info does let you sign messages. Exchange wallets don't.
3286  Local / India / Re: UnoWallet - Instant Bitcoin Wallet on: October 28, 2013, 01:07:09 PM
Unowallet is amazing! I mean its nuts but also amazing!

BTW you don't own unowallet.com do you? I bet a lot of people are going to end up there instead.
3287  Local / Other languages/locations / Re: Pakistan on: October 28, 2013, 12:38:59 PM
Hi guys, if there are any Mac fans here, some news:

An Urdu translation of Hive is now ready!


Is this the umbrel you are referring to?

3288  Bitcoin / Bitcoin Technical Support / Re: How to add BTC payments to a script? on: October 27, 2013, 08:04:53 PM
There are a few different ways to do it without running bitcoind..

You can use an API - blockchain.info or inputs.io
Or, you can generate new addresses yourself with something like - github.com/zamgo/PHPCoinAddress
Or, you could generate some addresses with bitaddress.org and store them in a database

It's not hard to do yourself, but there a plenty of people here that will help you out for a few satoshis.




Who are these generous people willing to do web development for fractions of a US cent?
3289  Bitcoin / Project Development / Re: VPS for high loaded project on: October 26, 2013, 07:07:46 PM
I was just looking to see if anyone was talking about servers and hosting or needed help..  I did preview the date and i guess I missed the year,  I thought it was new/recent post..

It is a strange coincidence for sure, however just an error on my part..   Roll Eyes

I have a question and a suggestion. Your domain was registered in 2012 but you boast of having been in business since 2001 on your about page. You also say that you've been offering VPS and cloud hosting since then. I don't believe cloud hosting existed back then and maybe not even VPS. So what's up with this?

You should add more Linux distros. Start with Debian.
3290  Bitcoin / Project Development / Re: [Electrum] merchant script on: October 26, 2013, 07:05:12 PM
It depends on what you set your client up with.

I have set my client up with the default value which is unknown to me right now. I can find out it of course but it doesn't matter. I still don't understand if my rate of unused addresses say 50% what gap limit I'm obliged to?

I don't understand whole magic of this gap limit adjustment. If I need permanent supply of new addresses why should I care if they generated by 20, by 200 or by 2000 items per bunch? What correlation between gap limit ("bunch size" if I got it right) and  number of unused addresses?

Gap limit basically means the number of extra addresses the client tracks and displays at any one point in time. Extra addresses are counted from the used address with the highest index that electrum was tracking. It means the following:

The default gap limit is 5 so you have 5 empty addresses to start with index 0 - 4

You receive bitcoins in address with index 0. Electrum now starts tracking addresses with index 0-5.

You receive coins to address with index 4. Electrum now starts tracking addresses 0 - 9.

What does this mean? It doesn't affect coins sent to addresses with high index numbers. You have the seed and are always in control of any coins sent to derived addresses. But you may not know about those coins if the gap limit is too low. So if you have hundreds of transactions in a day with large gaps of unused addresses between transactions you may have to increase the gap limit to see those addresses in electrum.
3291  Bitcoin / Bitcoin Discussion / Re: What characteristics make a solid brain wallet? on: October 26, 2013, 05:19:36 PM
Don't create your own passphrase. Use electrum and it will make one for you. Memorize that.

If you want to know why creating your own passphrase is a bad idea please see below:


BIP∞: Brainwallets.

FOR GODS SAKE. DON'T DO IT.  YOU MAY THINK YOU ARE SMART ENOUGH. SO DID EVERYONE ELSE WHO GOT ROBBED. HUMANS ARE NOT A GOOD SOURCE OF ENTROPY.

YOU HAVE A SCHEME?  Pfft. THE SPACE OF ALL SCHEMES YOU'RE LIKELY TO HAVE PROBABLY ONLY HAS A FEW BITS OF ENTROPY. RANDOM PHRASE IN A BOOK? THERE ARE ONLY ABOUT 30 BITS OF SENTENCE SELECTION IN A LIBRARY.

OH NO. YOU ARE NOT LISTENING TO ME, ARE YOU?

OH CRAP. YOU THINK THAT "EIGHT CHARACTERS AND ONE FROM EACH CHARACTER CLASS" APPLIES HERE??  WEBSITE SECURITY MIGHT HAVE TO DEAL WITH 1000 ATTEMPTS PER SECOND, BUT SOME DUDE WITH A FPGA FARM IS PROBABLY PRECOMPUTING A BILLION BRAINWALLETS PER SECOND. JUST STOP.

NOOOOOOOOOOOO.

Well, now that you have no more Bitcoin I guess we don't have to worry about you using a brainwallet.

Cheers.


3292  Bitcoin / Bitcoin Discussion / Re: the plural & capitalization of bitcoin? on: October 26, 2013, 04:19:59 AM
technically it is btc or if you are anal about it BTC
3293  Bitcoin / Bitcoin Discussion / Re: the plural & capitalization of bitcoin? on: October 26, 2013, 04:01:32 AM
I just use lower case bitcoin or bitcoins for everything. Uppercase Bitcoin just looks odd to me except when it is at the beginning of a sentence.
3294  Bitcoin / Bitcoin Discussion / Re: Are deterministic wallets more secure than random wallets ? on: October 25, 2013, 05:39:05 PM
Another reason why revealing the MPK is a bad idea is that in the unfortunate event any one of your private keys is revealed all your private keys can be cracked:

https://bitcointalk.org/index.php?topic=303969.0

See the response by ThomasV.
3295  Economy / Games and rounds / Re: Guess the hash and win BTC on: October 25, 2013, 12:08:53 PM
It's a quote from a conservative politician. Politicians are always talking. How is anyone going to guess this??

Lol Guess every politicans sayings
Lol thatcher
Power is like being a lady... if you have to tell people you are, you aren't.
Margaret Thatcher
Read more at http://www.brainyquote.com/quotes/authors/m/margaret_thatcher.html#z2vhvyYA4rg4Q25Q.99

Ah then there's this other thing. OP said conservative politician which made me think British Tory party right away but then I saw his profile and he's American. So are we talking republicans? Or is this any conservative politician anywhere in the world at any period in history?
3296  Economy / Games and rounds / Re: Guess the hash and win BTC on: October 24, 2013, 05:46:26 PM
It's a quote from a conservative politician. Politicians are always talking. How is anyone going to guess this??
3297  Bitcoin / Development & Technical Discussion / Re: Cold / Brain wallet security question on: October 24, 2013, 07:46:39 AM
The best brain wallet is an electrum wallet. 12 words are all you have to remember.
3298  Other / Beginners & Help / Re: Do you think that BTC will reach 300$? on: October 24, 2013, 07:42:50 AM
Yaay! It's crashing! Now we all wish we had sold at 200!
3299  Other / Beginners & Help / Re: Do you think that BTC will reach 300$? on: October 24, 2013, 12:46:33 AM
Unfortunately yes it will hit 300. Maybe even 350. But it will crash after that.
3300  Bitcoin / Mycelium / Re: Mycelium Bitcoin Wallet on: October 24, 2013, 12:40:55 AM
How much does Mycelium require in the way of phone resources?

I've just bought an older-model Huawei Glory smartphone (Android 4.0.4); I haven't loaded a lot on there, but apparently it typically hovers at about 150 MB of RAM free. Mycelium runs, I've sent a few bitcents to the address on the phone. The transaction has over 150 confirmations, but the app refuses to update the info, showing the app as "receiving" the coins and at 0 confirmations no matter how often I refresh.

I've run apps that I thought were more resource-hungry than Mycelium, and they work (if slowly). Will Mycelium just not work on such lightweight phones?


I don't think its lack of resources that is tripping you up. One of the core devs has talked about using a used sony phone for mycelium. You can see it in action in the play store video.
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