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Author Topic: Armory - Discussion Thread  (Read 521358 times)
flipperfish
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October 22, 2014, 02:41:55 PM
 #4241

I didn't explain this, but I lost 1 BTC using blockchain + TOR a few days ago, and 1 BTC using coinbase + TOR a few months ago, that's why I no longer trust clearnet sites + TOR

And what happens if I use Armory withouth TOR? Do I remain anonymous? Will my IP be traced when sending/receiving BTC?

Maybe it's not really necessary to use TOR with Armory after all...

I just want to prevent someone to know my IP when sending/receiving BTC, that's all

How did this happen? Did they freeze your bitcoins because you used TOR or was it some kind of Man-in-the-Middle attack?
I would assume both can't happen with Armory. Freezing of funds is impossible, because you own the private keys. MITM can't happen because Armory relies on the local full node.

However, even with Armory, if you don't want anyone to know your IP, you'll have to use some IP-hiding technique like TOR.

Thanks flipperfish,

It was a Man-in-the-Middle attack.

So what do you reckon? Is it really necessary to run TOR with Armory or I'm being too paranoid?

I think it depends on your security goals/requirements. If you really want to be sure (as sure as TOR permits), that no one can connect your transactions/addresses with your IP and by extension through your ISP your name, then yes, it is necessary to use TOR.

On the other hand, if you are using Armory, in theory your IP will "only" be seen by the nodes in the Bitcoin-P2P-Network, you are currently connected to. Only these nodes are able to link your transaction to your IP. In practice there are side channels, by which your IP could get revealed, for example the "call home" function of Armory. Maybe there is something similiar in bitcoind (which you need for Armory), too. However, through these channels no transaction data *should* get to the outside.

Note, that to receive transactions, you don't need to use TOR, because the local bitcoind will receive *all* transactions within the Bitcoin-Network. No one can differ, if you received a transaction that was destined to yourself or to someone else.
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goatpig
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October 22, 2014, 05:23:55 PM
 #4242

Thanks GoatPig, so what do you reckon?

Is it really necessary to run TOR with Armory or I'm being too paranoid?

If you want to run a node and/or broadcast transactions without revealing your IP, you should use TOR. If your concern is not be victim of theft, stop using online wallets and enforce proper cold storage pratices. TOR doesn't add to your coins security, that's cold storage.

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October 23, 2014, 10:58:23 AM
 #4243

Thanks GoatPig, so what do you reckon?

Is it really necessary to run TOR with Armory or I'm being too paranoid?

If you want to run a node and/or broadcast transactions without revealing your IP, you should use TOR. If your concern is not be victim of theft, stop using online wallets and enforce proper cold storage pratices. TOR doesn't add to your coins security, that's cold storage.

Looks like tor is worse

http://arxiv.org/abs/1410.6079

flipperfish
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October 23, 2014, 02:02:20 PM
 #4244

Thanks GoatPig, so what do you reckon?

Is it really necessary to run TOR with Armory or I'm being too paranoid?

If you want to run a node and/or broadcast transactions without revealing your IP, you should use TOR. If your concern is not be victim of theft, stop using online wallets and enforce proper cold storage pratices. TOR doesn't add to your coins security, that's cold storage.

Looks like tor is worse

http://arxiv.org/abs/1410.6079

Nah, as far as I understand that paper, linkability of transactions to IPs with TOR is in the worst case the same as not using TOR. Care should be taken when receiving transactions, but as I described above, the anonymity of TOR isn't needed in that case.
Is it possible to configure bitcoind to have a receive only non-TOR connection, while maintaining a connection via TOR which is used to broadcast transactions?
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October 23, 2014, 02:10:15 PM
 #4245

Thanks GoatPig, so what do you reckon?

Is it really necessary to run TOR with Armory or I'm being too paranoid?

If you want to run a node and/or broadcast transactions without revealing your IP, you should use TOR. If your concern is not be victim of theft, stop using online wallets and enforce proper cold storage pratices. TOR doesn't add to your coins security, that's cold storage.

Looks like tor is worse

http://arxiv.org/abs/1410.6079

Nah, as far as I understand that paper, linkability of transactions to IPs with TOR is in the worst case the same as not using TOR. Care should be taken when receiving transactions, but as I described above, the anonymity of TOR isn't needed in that case.
Is it possible to configure bitcoind to have a receive only non-TOR connection, while maintaining a connection via TOR which is used to broadcast transactions?
Most of the attacks (except for the small number of hidden services to connect to) in that paper are fixed by adding "onlynet=tor" to bitcoin.conf, so that you don't use exit nodes at all.

Longer term, it would be good to encourage more nodes to run dual (triple) stacked - listening on ipv4 and tor (and ipv6).

Maybe it would be worth using proof of existence to allow hidden services to demonstrate they've been around for a while, even though this doesn't fully solve Sybil attacks.
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October 24, 2014, 05:56:08 PM
 #4246

If you use armory over tor your coins are safe because all armory does is broadcast the signed transaction.  The worst thing that will happen is that someone could refuse to relay your transaction or they could do transaction mutability thing that I don't think is a problem anymore and it's not limited to tor.

Guide to armory offline install on USB key:  https://bitcointalk.org/index.php?topic=241730.0
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October 24, 2014, 07:47:22 PM
 #4247

If you use armory over tor your coins are safe because all armory does is broadcast the signed transaction.  The worst thing that will happen is that someone could refuse to relay your transaction or they could do transaction mutability thing that I don't think is a problem anymore and it's not limited to tor.

Armory signs and uses bitcoin-core as the broadcast mechanism.
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October 29, 2014, 04:01:32 AM
 #4248

Still using this and coins are A-OK
Loving the updateds op keep them coming
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October 29, 2014, 10:23:56 AM
Last edit: October 29, 2014, 09:33:10 PM by RoadStress
 #4249

I got the following error: "There was an error constructing your transaction, due to a quirk in the way Bitcoin transactions work. If you see this error more than once, try sending your BTC in two or more separate transactions".

What's up with that?


Edit: I think it might be related to the transaction malleability problem. I have unconfirmed transactions in that wallet.

Second edit: Is there a reason for why I can access the "Transaction Info" window only on some transactions? Double click does nothing, right click>View Details does nothing.

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October 31, 2014, 08:51:21 AM
 #4250

Does Armory have a privacy feature when the client is launched, it ask for password b4 it sync any wallet?

I really want this on my watch-only client. But i wish to have privacy incase someone steal my computer they wont know if i have any bitcoin wallet/balance.
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October 31, 2014, 09:42:19 AM
 #4251

Does Armory have a privacy feature when the client is launched, it ask for password b4 it sync any wallet?

I really want this on my watch-only client. But i wish to have privacy incase someone steal my computer they wont know if i have any bitcoin wallet/balance.


Currently no.

But really, you have no password on your boot (BIOS), no password on your drive encryption and no password on your login (OS)?

If somebody steals your computer now and your drive is not encrypted with a password/passphrase, all they need to do is pull out the HDD and connect it to another PC and find the appropriate file (as far as watch-only is concerned).

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seriouscoin
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October 31, 2014, 10:08:25 AM
 #4252

Does Armory have a privacy feature when the client is launched, it ask for password b4 it sync any wallet?

I really want this on my watch-only client. But i wish to have privacy incase someone steal my computer they wont know if i have any bitcoin wallet/balance.


Currently no.

But really, you have no password on your boot (BIOS), no password on your drive encryption and no password on your login (OS)?

If somebody steals your computer now and your drive is not encrypted with a password/passphrase, all they need to do is pull out the HDD and connect it to another PC and find the appropriate file (as far as watch-only is concerned).

what would that file be? and how would they open it? I thought the watch-only import file is self destroyed after i import it.
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October 31, 2014, 10:21:48 AM
 #4253

Does Armory have a privacy feature when the client is launched, it ask for password b4 it sync any wallet?

I really want this on my watch-only client. But i wish to have privacy incase someone steal my computer they wont know if i have any bitcoin wallet/balance.


Currently no.

But really, you have no password on your boot (BIOS), no password on your drive encryption and no password on your login (OS)?

If somebody steals your computer now and your drive is not encrypted with a password/passphrase, all they need to do is pull out the HDD and connect it to another PC and find the appropriate file (as far as watch-only is concerned).

what would that file be? and how would they open it? I thought the watch-only import file is self destroyed after i import it.


The information has to be there. Otherwise how would Armory know your watch-only addresses, if it doesn't store them anywhere?

On Lubuntu:

Code:
find  / -name *wallet*

returns

Code:
/root/.armory/armory_XYZxyzXYZ_.watchonly.wallet

So, the information is certainly there. My guess is, if the attacker installs Armory on their PC and put your file in the right directory, they will be able to see your info.

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November 01, 2014, 05:31:02 AM
 #4254

Wow Alan is speaking
http://money2020.com/bitcoinworld

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November 01, 2014, 06:28:22 AM
 #4255


And Armory is a sponsor.
chicken65
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November 01, 2014, 02:06:23 PM
 #4256

Hi Folks.

I decided to try this wallet.
As a test I sent 0.1 btc to the wallet but it hasn't shown
up. I see the amount on the block chain.

I think something went wrong when I updated which I think was before
the transfer. Instead of updating the software just created another
armoury on my desktop. Thats when it gets a bit hazy? I did transfer that
wallet to my applications folder thinking it would write over the existing one -
but it didn't. I was left with two copies  Roll Eyes...so a process of trying each one to
see if the deposit would show up to no avail. Deleted one wallet, then another
etc etc.

Perhaps the wallet requires me to download the entire BTC block chain data
before the transaction will show up in the wallet? Ive been doing that for two days
now.

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November 01, 2014, 02:45:52 PM
 #4257

Hi Folks.

I decided to try this wallet.
As a test I sent 0.1 btc to the wallet but it hasn't shown
up. I see the amount on the block chain.

I think something went wrong when I updated which I think was before
the transfer. Instead of updating the software just created another
armoury on my desktop. Thats when it gets a bit hazy? I did transfer that
wallet to my applications folder thinking it would write over the existing one -
but it didn't. I was left with two copies  Roll Eyes...so a process of trying each one to
see if the deposit would show up to no avail. Deleted one wallet, then another
etc etc.

Perhaps the wallet requires me to download the entire BTC block chain data
before the transaction will show up in the wallet? Ive been doing that for two days
now.



Yes you must be synced

chicken65
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November 01, 2014, 03:23:52 PM
 #4258

Ok Understood.

thanks
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November 04, 2014, 08:03:30 PM
 #4259

Should we report bugs we discover with the dev branch, or is it understood that since it is under active development, that there will be issues and not to report them?

I discovered an action when interacting with the ui that results in an error when performed once and a segmentation fault when performed a second time. It is when you double click on an address in your wallet. It is not present in 0.92.3.

I'll include more information in a formal bug report. Just wanted to make sure I should file one before doing so.
goatpig
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November 04, 2014, 09:41:47 PM
 #4260

Should we report bugs we discover with the dev branch, or is it understood that since it is under active development, that there will be issues and not to report them?

I discovered an action when interacting with the ui that results in an error when performed once and a segmentation fault when performed a second time. It is when you double click on an address in your wallet. It is not present in 0.92.3.

I'll include more information in a formal bug report. Just wanted to make sure I should file one before doing so.

Feel free to file them to our support channel. I don't think any of us have ran into this, so this being helpful. We are currently in the bug hunt phase on dev so you are welcomed to help.

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