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Author Topic: Bitcoin Wallet for Android  (Read 120342 times)
OneEyed
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July 23, 2012, 12:47:11 PM
 #181

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if your phone is rooted (and I would think that the intersection between people rooting their phones and people using bitcoins is not empty), another application is more likely to be able to access the wallet-protobuf content.

Why is that? To my understanding, apps would still need to expoit security bugs, and the mere existence of them is unrelated to wether you have rooted your phone or not.

Several reasons, the first one being a risk I've seen taken many times already:
  • backups made by applications such as Titanium Backup are unencrypted by default, and will contain the unencrypted private keys without the user realizing the consequences of it — moreover, Titanium Backup lets you send backup in the cloud (Google Drive, DropBox) even if they are not encrypted
  • the user is more likely to accept, by mistake, a "superuser" request made by an application (it's just a popup on the screen, unfortunately many users click on them without thinking about what it says)
  • if the phone is used for development, "adb root" followed by "adb shell" will give you a root shell on the phone, from which you can get the content

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burger
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July 23, 2012, 09:55:08 PM
 #182

Is this patent a threat to the QR code function in Bitcoin Wallet?

http://ricrichardson.blogspot.com.au/2012/03/revised-executable-qr-code-provisional.html

Andreas Schildbach
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July 23, 2012, 11:18:39 PM
 #183

Is this patent a threat to the QR code function in Bitcoin Wallet?

If Australia has something like prior art, this patent will be invalid (at least the payment part of it).
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July 24, 2012, 06:54:10 AM
 #184

Is this patent a threat to the QR code function in Bitcoin Wallet?

If Australia has something like prior art, this patent will be invalid (at least the payment part of it).

I hope so...

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July 25, 2012, 11:45:19 AM
 #185

If your phone is rooted, you can copy your wallet from /data/data/de.schildbach.wallet/files/wallet-protobuf

If you can't root your phone, I would need to send you a special version that has the ability to copy your wallet to your sdcard. However, this is a quite dangerous feature, as all other apps you got on your phone can steal your wallet/private keys from the sdcard easily.


Thanks Goonie, the problem is now solved.
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July 25, 2012, 01:37:23 PM
 #186


Why is that? To my understanding, apps would still need to expoit security bugs, and the mere existence of them is unrelated to wether you have rooted your phone or not.

Am I understanding this right - dishonest apps have the capability to steal your wallet regardless of whether or not the user has rooted the phone? Why then require the phone to be rooted to back up the wallet? It seems that this requirement has no additional safety benefit, but the negative aspect of making it harder for people to back up their wallets.

Do not waste your time debating whether Bitcoin can work. It does work.

"Early adopters will profit" is not a sufficient condition to classify something as a pyramid or Ponzi scheme. If it was, Apple and Microsoft stock are Ponzi schemes.

There is no such thing as "market manipulation." There is only buying and selling.
Mike Hearn
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July 26, 2012, 11:12:01 AM
 #187

Obviously the long term plan is not to require rooting to back up the wallet. Backup isn't really properly supported right now (well, backup is, clean restore is the issue).
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August 16, 2012, 07:01:32 AM
 #188

Is it only me or do we always have to pay the transaction fee when sending BTC?

I sent 0.0212 BTC and couldn't send without a fee =(
Isn't it suppose to be without a fee if sending more than 0.01 BTC?

Bananington
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August 16, 2012, 07:03:11 AM
 #189

Is it only me or do we always have to pay the transaction fee when sending BTC?

I sent 0.0212 BTC and couldn't send without a fee =(
Isn't it suppose to be without a fee if sending more than 0.01 BTC?

I've noticed that you have to pay a fee if you are sending transactions too often. I.e. right after getting them.
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August 16, 2012, 02:04:53 PM
 #190

Is it only me or do we always have to pay the transaction fee when sending BTC?

I sent 0.0212 BTC and couldn't send without a fee =(
Isn't it suppose to be without a fee if sending more than 0.01 BTC?

I've noticed that you have to pay a fee if you are sending transactions too often. I.e. right after getting them.

Basically, a transaction with 1 input, 1 output and worth 1 bitcoin will take 144 confirmations (1 days worth of mining) to be sent without a fee.  If its larger in size because of multiple inputs/outputs, then it will take more confirmations.  If the transaction is less than 1 bitcoin, it will take more confirmations. 

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August 24, 2012, 07:58:15 PM
 #191

Obviously the long term plan is not to require rooting to back up the wallet. Backup isn't really properly supported right now (well, backup is, clean restore is the issue).
Long term plan should be HD wallets, no?
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August 26, 2012, 11:09:16 AM
 #192

I just received some BTC as mined coins. There's a bug which shows the coins as fully confirmed after 6 confirmations instead of 120.
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August 27, 2012, 03:15:05 AM
 #193

I love this Bitcoin Wallet app! It seriously needs a simple private key export. Import is not at all important.

Would it be possible to AES encrypt the keys based on a user inputted password then allow that file/text to be "shared" via the standard Android share options?

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August 31, 2012, 04:13:53 PM
 #194

I have the android wallet and I must say that I'm not very happy with it's performance. It works well, but when it starts to download the blocks, my whole device freezes up and I am unable to do anything for quite a while. I have an app watcher and it tells me the app will take 80-90% of a processor power for a while. I have a Samsung Galaxy S2...
imsaguy
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August 31, 2012, 04:35:22 PM
 #195

I have the android wallet and I must say that I'm not very happy with it's performance. It works well, but when it starts to download the blocks, my whole device freezes up and I am unable to do anything for quite a while. I have an app watcher and it tells me the app will take 80-90% of a processor power for a while. I have a Samsung Galaxy S2...

Is your device mostly caught up with blocks or is it coming off a fresh start that its downloading the whole chain?

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September 01, 2012, 08:44:22 AM
 #196

I have the android wallet and I must say that I'm not very happy with it's performance. It works well, but when it starts to download the blocks, my whole device freezes up and I am unable to do anything for quite a while. I have an app watcher and it tells me the app will take 80-90% of a processor power for a while. I have a Samsung Galaxy S2...

Is your device mostly caught up with blocks or is it coming off a fresh start that its downloading the whole chain?

it is mostly caught up, but downloading even half a day worth of blocks freezes the device for a minute. It's not always, but sometimes it gets very slow, or totally frozen
Andreas Schildbach
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September 02, 2012, 07:14:27 AM
 #197

I have the android wallet and I must say that I'm not very happy with it's performance. It works well, but when it starts to download the blocks, my whole device freezes up and I am unable to do anything for quite a while. I have an app watcher and it tells me the app will take 80-90% of a processor power for a while. I have a Samsung Galaxy S2...

Is your device mostly caught up with blocks or is it coming off a fresh start that its downloading the whole chain?

it is mostly caught up, but downloading even half a day worth of blocks freezes the device for a minute. It's not always, but sometimes it gets very slow, or totally frozen

Can you take this issue to the bug tracker?

http://code.google.com/p/bitcoin-wallet/issues/list

barbarousrelic
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September 12, 2012, 05:38:30 PM
 #198

I just tried to sell someone Bitcoin in person and Bitcoin Wallet didn't work for me.

When I open the program on my Droid 4, it say BTC 32.4something

I sent my Bitcoin Wallet 20 and 10 BTC last night. These two transactions have 94 and 99 confirmations according to blockchain.info.

But when I just tried to give 32 BTC to the person I was selling to, I write in under "Amount to Pay: 32" and an error message popped up that said (and still says) "Available for spending BTC2.83 (BTC 29.6489 waiting for confirmation)"

How can it still be waiting for confirmation on that much Bitcoin when the 20 and 10 BTC transactions in last night have 90+ confirmations?

The two transactions into my wallet last night also have full green circles on the program, which I thought indicated that they were fully confirmed.

Please help!

edit: I noticed now that it allows me to spend these bitcoins, right when they have passed 100 confirmations. Are 100 confirmations really necessary? That seems way too high - 5 or 6 are OK for the main client, why would 100 be required for Android Bitcoin Wallet?

Do not waste your time debating whether Bitcoin can work. It does work.

"Early adopters will profit" is not a sufficient condition to classify something as a pyramid or Ponzi scheme. If it was, Apple and Microsoft stock are Ponzi schemes.

There is no such thing as "market manipulation." There is only buying and selling.
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September 12, 2012, 05:48:45 PM
 #199


How can it still be waiting for confirmation on that much Bitcoin when the 20 and 10 BTC transactions in last night have 90+ confirmations?

Because Bitcoin Wallet for Android keeps the blockchain local to the phone, and needs to catch up to the rest of the network on it's own.  This is the primary reason that I've switched to BitcoinSpinner, which uses a divided wallet method & keeps the blockchain on the BitconSpinner server instead.

"The powers of financial capitalism had another far-reaching aim, nothing less than to create a world system of financial control in private hands able to dominate the political system of each country and the economy of the world as a whole. This system was to be controlled in a feudalist fashion by the central banks of the world acting in concert, by secret agreements arrived at in frequent meetings and conferences. The apex of the systems was to be the Bank for International Settlements in Basel, Switzerland, a private bank owned and controlled by the world's central banks which were themselves private corporations. Each central bank...sought to dominate its government by its ability to control Treasury loans, to manipulate foreign exchanges, to influence the level of economic activity in the country, and to influence cooperative politicians by subsequent economic rewards in the business world."

- Carroll Quigley, CFR member, mentor to Bill Clinton, from 'Tragedy And Hope'
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September 12, 2012, 06:11:38 PM
 #200


How can it still be waiting for confirmation on that much Bitcoin when the 20 and 10 BTC transactions in last night have 90+ confirmations?

Because Bitcoin Wallet for Android keeps the blockchain local to the phone, and needs to catch up to the rest of the network on it's own.  This is the primary reason that I've switched to BitcoinSpinner, which uses a divided wallet method & keeps the blockchain on the BitconSpinner server instead.

But my Bitcoin Wallet is completely synchronized - so it should be seeing all 90+ confirmations on the bitcoins in my wallet.

Do not waste your time debating whether Bitcoin can work. It does work.

"Early adopters will profit" is not a sufficient condition to classify something as a pyramid or Ponzi scheme. If it was, Apple and Microsoft stock are Ponzi schemes.

There is no such thing as "market manipulation." There is only buying and selling.
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