Bitcoin Forum
April 17, 2014, 07:46:09 AM *
News: ♦♦ A bug in OpenSSL, used by Bitcoin-Qt/Bitcoin Core, could allow your bitcoins to be stolen. Immediately updating Bitcoin Core to 0.9.1 is required in some cases, especially if you're using 0.9.0. Download. More info.
The same bug also affected the forum. Changing your forum password is recommended.
 
  Home Help Search Donate Login Register  
  Show Posts
Pages: 1 [2] 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48
21  Bitcoin / Alternative clients / Re: Mycelium Bitcoin Wallet on: March 19, 2014, 06:45:42 PM
ETA on Mycelium with the new standard fee?
The new fee rules in 0.9 affect the default relay fee rule, but not the default miner fee. This means that your transaction will propagate with a lower fee, but not necessarily confirm.
Until now the default relay fee rules and default mining fee have been the same. It remains to be seen how the miners react.
If we lower the fee right now we will probably get a lot of unhappy users (blaming our software) because nothing confirms. 0.9 is just out and it will take some time until it has proliferated, and we will have to see whether miners actively set the mining fee below the standard.

I have no problem with a base fee of 0.0001 BTC

Even at $1000/btc, that's only 10 cents (U.S.) per transaction. At current prices, closer to 6 cents. Still cheaper than a bank wire, and worth it for anyone not trying to make micropayments (which Bitcoin really wasn't designed for anyway.)

While saving coins is always a plus, don't feel rushed to lower the fee anytime soon. Smiley

We agree on many levels. Thanks for the support.
I predict that there is going to be an immense pressure on wallet developers to lower the fees with 0.9 out.
22  Bitcoin / Alternative clients / Re: Mycelium Bitcoin Wallet on: March 19, 2014, 01:27:58 PM
ETA on Mycelium with the new standard fee?
The new fee rules in 0.9 affect the default relay fee rule, but not the default miner fee. This means that your transaction will propagate with a lower fee, but not necessarily confirm.
Until now the default relay fee rules and default mining fee have been the same. It remains to be seen how the miners react.
If we lower the fee right now we will probably get a lot of unhappy users (blaming our software) because nothing confirms. 0.9 is just out and it will take some time until it has proliferated, and we will have to see whether miners actively set the mining fee below the standard.
23  Bitcoin / Alternative clients / Re: Mycelium Bitcoin Wallet on: March 19, 2014, 01:23:03 PM
Are you going to make a new version? if so  when about
Excuse me, am I right it does work with Samsung ? I wonder cause my friend has samsung
We are working on the next big release. I hope we have it out in a week or so. Mycelium works with most Android phones, about 4000 versions, samsung included.
24  Bitcoin / Alternative clients / Re: Mycelium Bitcoin Wallet on: March 17, 2014, 03:02:07 PM
Think I disovered a small backup related bug. (Does not affect integrity of backups)

My wallet currently has 1 active address, 8 watch only addresses and an archived address. In the backup, the active one is listed as 1 out of 9, and then the 8 watch only addresses are listed as 1-8 of 9. There is no 9 out of 9.
Any comment?

I know we had a bug in the labels of the PDF. i assume just the numbering is wrong and the actual backup is fine.

if so, i'll put it in the low-prio bug category. we will eventually fix it someday or sooner if we get a pull request for it.

(what is more annoying is the lack on UTF-8 support in the pdf... ) this needs a major rewrite with a different PDF generation engine.
The numbering has been fixed and if you use non-ASCII characters in address labels we will not not display it (as it would look like gibberish). This will be part of the next release.
25  Bitcoin / Development & Technical Discussion / Re: Finally a question about Bitcoin that I could not answer. on: March 17, 2014, 10:37:44 AM
Jan, just curious, is the book I suggested along the lines you are looking for? I realize it isn't out and so you can't really say with any certainty... but it's helpful for me to gauge whether people think it might be interesting to them based on the superficial details (i.e., the stuff that's apparent before you actually start reading it).
Chris, interesting way of communicating information. I must admit that I have never seen anything like it. I am probably more an old-school kinda guy who would look for something boring like this.
Kernighan & Richie's C book
or
Stevens TCP/IP Illustrated
... something that explains Bitcoin on the protocol level and not so much how bitcoin is used today, as this gets outdated pretty quickly.
Maybe your way is more suitable to the younger generation, good luck with your project.
26  Bitcoin / Development & Technical Discussion / Re: Finally a question about Bitcoin that I could not answer. on: March 15, 2014, 08:02:23 AM
I could not agree, i can find you about 20 articles that explain you in DETAILS how it works, you don't need a book. But yes there is opportunity to someone who wants to write one.
Can you post a handful of links?
27  Bitcoin / Development & Technical Discussion / Finally a question about Bitcoin that I could not answer. on: March 14, 2014, 07:58:33 PM
I did a Bitcoin presentation today at a company where I used to work (which happens to make hardcore cryptography for big classical financial institutions) and an old colleague asked me:

"If the Satoshi white paper is above my level, where do I find a book that explains all this in layman terms?"

... and I said "Hmm... good question."

I spent several years reading + writing code and forums to get my understanding of Bitcoin, and consider myself one of the few who really understand how Bitcoin works. Bitcoin has come far, but yet, we do not have a proper piece of literature that explains how it really works.

There is a book for everything.... except Bitcoin. There must be a big opportunity waiting here.

When I search for Bitcoin on Amazon I feel ashamed.
28  Bitcoin / Bitcoin Discussion / Re: 10 Billion bitcoin uncofirmed transaction on blockchain.info. EDIT: It's gone. on: March 13, 2014, 06:03:03 PM
If they weren't trying impossibly large transactions, would they be able to succeed?

If you don't have the funds is also invalid and invalid transaction. You can only do it with a 51% attack.
Not even 100% would suffice. No (real) nodes would accept blocks with invalid transactions.
29  Bitcoin / Alternative clients / Re: Mycelium Bitcoin Wallet on: March 13, 2014, 04:24:36 PM
Let me add that you need to install an app that exploits the back door to be vulnerable (or update an existing app which adds an exploit)
30  Bitcoin / Alternative clients / Re: Mycelium Bitcoin Wallet on: March 13, 2014, 03:59:13 PM
A vulnerability has been discovered which seems to affect certain Samsung devices:
http://redmine.replicant.us/projects/replicant/wiki/SamsungGalaxyBackdoor

What can it do?
It appears that this could be used to gain read access to Mycelium private keys on the android file system for the following device types:
  • Nexus S (I902x)
  • Galaxy S (I9000)
  • Galaxy S 2 (I9100)
  • Galaxy Note (N7000)
  • Galaxy Nexus (I9250)
  • Galaxy Tab 2 7.0 (P31xx)
  • Galaxy Tab 2 10.1 (P51xx)
  • Galaxy S 3 (I9300)
  • Galaxy Note 2 (N7100)

How should I react?
For a start, please don't store more in a hot wallet than what you are prepared to loose. This is a general recommendation regardless of whether you use Mycelium or any other wallet. Mycelium offers cold storage spending where the private key never touches the file system. With cold storage spending your private key is safe from this exploit. Use it.

What will Mycelium do?
We will make an update that makes Mycelium warn the user if he is running on one of those devices.
We will get in contact with other Bitcoin android developers and figure out what the best course of action is.
31  Bitcoin / Alternative clients / Re: Mycelium Bitcoin Wallet on: March 13, 2014, 03:34:33 PM
...Also, not sure if you noticed the new samsung discovery of a backdoor/feature. I personalky use a galaxy, and was concerned enough to move it onto my computer for a bit. Can you advise on that?
Was actually in the process of writing about that... gimme a minute
32  Bitcoin / Bitcoin Discussion / Re: Best Bitcoin Android apps and widgets on: March 10, 2014, 07:30:10 PM
Hi, I've just published a bitcoin widget, nothing fancy, the goal was to do something a little more good looking and less boring than the others. Plus you've got latest news by clicking on it.

       Cool Bitcoin Widget

Any feedback welcome as I'm planning an update to add exchanges platform.

Thanks !
Feedback: Your link doesn't work  Wink
This one does: Cool Bitcoin Widget
33  Bitcoin / Alternative clients / Re: Mycelium Bitcoin Wallet on: March 07, 2014, 07:54:07 AM
I see the latest version dropped the "Avg." pricing info. Would it be a big thing to bring it back?

I'd also like to see this feature brought back, and if possible, add the ability to customize which of the exchanges count towards this average. Also, are there any plans to add multi-send to the wallet?

Thanks for all your hard work, Mycelium makes it a pleasure to use Bitcoin - you guys are on the forefront of wallet software development - never stop innovating!  Grin

Thanks.

We have started adding rates from sources that are not actual exchanges such as Coinbase and BitPay.
Many users have requested this as it allows them to see what their coins are worth when buying at for instance Coinbase or spending at a BitPay enabled merchant. Since these sources do not have a volume associated we cannot really calculate a weighted average.

In the testnet version (released 2 days ago) we have added BitcoinAverage. They make a business out of monitoring and selecting relevant exchange sources, and we believe that they track the markets closer than the Mycelium developers.

The default choice is right now Bitstamp, and it is up to the user to select a source that he/she finds valuable and trustworthy.
34  Bitcoin / Bitcoin Discussion / Re: Which Bitcoin Client do you use and why ? on: March 06, 2014, 12:22:04 PM
It seems people are preferring blockchain.info over coinbase in terms of online wallet. Any specific reason ?
blockchain.info is not a bitcoin bank.
35  Bitcoin / Bitcoin Discussion / Re: Which Bitcoin Client do you use and why ? on: March 04, 2014, 07:44:43 PM
Bitcoin-Qt and Armory. Also, Mycelium.

Mycelium is dangerous.  Very dangerous.  It is Russian and bitcoin is illegal in Russia.  Want to get screwed?  Use Mycelium from Russia and you're gonna have KGB knocking on your door with a polonium sandwich any minute now.  
Mycelium developer here. Last time i checked I was from Denmark and the rest of the Mycelium team in Austria.
36  Bitcoin / Alternative clients / Re: Mycelium Bitcoin Wallet on: March 03, 2014, 04:30:35 PM
That's good, I never considered how much security 15 Alphabetic characters could give. Thanks for testing that.
Nore that  this is not a generic result that can be applied anywhere. It requires that the password is random (read not human generated) and scrypt (or something similar) is applied.
37  Bitcoin / Alternative clients / Re: Mycelium Bitcoin Wallet on: March 03, 2014, 03:55:41 PM
Security question here: I store my backup online, but the 15 character password locally. If someone were to get ahold of my encrypted backup, how quickly could they bruteforce it? With 26 characters to choose from, there is 26^15 possibilities, but how long does it take to test each one?
About 1 million years if they use 1 million of today's desktop computers to brute force it.
More info here:
http://www.mycelium.com/wallet/FAQ.html#q020
http://www.mycelium.com/wallet/FAQ.html#q021
38  Other / Beginners & Help / Re: Mycelium and Electrum Flawed? If their servers go down, is your BTC recoverable? on: March 01, 2014, 03:06:32 PM
OK,

The Mycelium server went down a couple hours yesterday so I did not have access to my BTC for a couple hours. This got me thinking.... If thin client wallets' servers go down, will my access to my BTC be lost forever?

If this is not true, then how do I back up my wallets with Mycelium and Electrum so that if their servers go dark (from bankster hackers, government regulators, etc,), I can salvage my BTC with an alternate wallet?


Thanks,
 Smiley

Let me clarify: There is more than one Mycelium server, right now two, and we are expanding as demand grows. It has been a very long time since both servers were down at the same time (if ever). However one of them got stuck recently due to hardware failure, which meant that the node did not receive any blocks. During that time you would not receive any confirmations on transaction sent/received, but you could still spend and see incoming transactions. This only affected Mycelium apps that were connected to that server, and a random one is chosen whenever the app is killed and restarted.

"Keep your private keys private" has been my motto for the last few years in bitcoinland, and the same goes for Mycelium. Your private keys are only on your device, and only leave the device when you choose to...and you should, more coins have been lost due to loss than to theft.

There are two ways for you to get your private keys out of the app. The one that we encourage produces a PDF that contains encrypted private keys, here is a sample (without the password). As long as the wallet has a private key that has not been backed up (and imported, to verify that the backup really works) it will show a "Backup Warning" button on the main screen. Annoying but necessary, we really want our users to make proper backups.
 
The other method uses a plain SIPA encoded private key as text and QR code, which is not encrypted, but pretty standard and supported by many other wallets. Access this method by going to the Keys tab, select your key and then the Export option.

Both methods are available even if Mycelium goes bust and the servers shut down.
39  Bitcoin / Alternative clients / Re: Mycelium Bitcoin Wallet on: March 01, 2014, 09:46:47 AM
Can someone walk me through message signing? The website says 'go to keys tab' which I have done, but don't see anything there about signing a message. I'd like to update the Just-Dice ticket system with this option for signing.

Thanks in advance,
Deb

It appears I don't have the latest version though it says there are no updates available. I will keep trying to update and hope that it is simple to work out once I do.



The update check does not work properly right now. We'll fix it next week.
You can get the latest version from Google Play or mycelium.com
40  Bitcoin / Alternative clients / Re: Mycelium Bitcoin Wallet on: February 28, 2014, 04:10:29 PM
rollout is 100%
Pages: 1 [2] 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48
Sponsored by , a Bitcoin-accepting VPN.
Powered by MySQL Powered by PHP Powered by SMF 1.1.19 | SMF © 2006-2009, Simple Machines Valid XHTML 1.0! Valid CSS!