Armory - Discussion Thread - page 24.

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legendary

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https://gliph.me/hUF

Quote from: justusranvier on October 02, 2014, 10:11:35 AM

Quote from: segeln on October 02, 2014, 09:58:29 AM

What about antimalware/antiviruses programs like Norton,kaspersky,avira.Mc affee?
Could they detect those malicious software,when they are widespread and known ?

No.

USB firmware exploits happen outside the control of the CPU and any software that may be running on it.

For now, you should probably use CD-Rs to move unsigned transactions across the air gap discard them after each use.

There might not be any exploitable CD drive firmware vulnerabilities that can be triggered by malicious data on a disc. Maybe.

There's audio too, easier on the planet: https://bitcointalksearch.org/topic/tx-signing-via-minimodem-735111

segeln

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Quote from: justusranvier on October 02, 2014, 10:11:35 AM

Quote from: segeln on October 02, 2014, 09:58:29 AM

What about antimalware/antiviruses programs like Norton,kaspersky,avira.Mc affee?
Could they detect those malicious software,when they are widespread and known ?

No.

USB firmware exploits happen outside the control of the CPU and any software that may be running on it.

For now, you should probably use CD-Rs to move unsigned transactions across the air gap discard them after each use.

There might not be any exploitable CD drive firmware vulnerabilities that can be triggered by malicious data on a disc. Maybe.

thanks,justusranvier

SimonBelmond

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Quote from: Perlover on October 02, 2014, 09:17:50 AM

I don't know somebody wrote to here or not.
But i think the Armory and other programs could have a potential vulnerability.

For example what if your computer with installed Armory (watch-only wallet mode) is infected and trojan/virus which modifies a receiving address in Armory's interface? How can i trust to my online watch-only computer that all generated addresses are my addresses? What if trojan/virus modifies installed DLLs/Shared libraries of Armory and substitute watch-only generated addresses or seed to hacker things? If i will send to money to generated address how can i sure that this address is my address for private key at offline computer? :-/

What do developers think about this?

I jsut double check the address before broadcasting. That's more or less all I can do. Of course you could take appart the unsigned and signed transaction before broadcasting. However, as long as I don't hear anything else I consider it safe enough...

justusranvier

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Quote from: segeln on October 02, 2014, 09:58:29 AM

What about antimalware/antiviruses programs like Norton,kaspersky,avira.Mc affee?
Could they detect those malicious software,when they are widespread and known ?

No.

USB firmware exploits happen outside the control of the CPU and any software that may be running on it.

For now, you should probably use CD-Rs to move unsigned transactions across the air gap discard them after each use.

There might not be any exploitable CD drive firmware vulnerabilities that can be triggered by malicious data on a disc. Maybe.

segeln

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Merit: 500

Quote from: chrisrico on October 02, 2014, 08:29:04 AM

Quote from: segeln on October 02, 2014, 07:24:26 AM

are only USB sticks right from the factory affected or old used ones as well?
As I understand it,USB Sitcks in use cannot get compromised

Nope, the whole reason why this is such a bad exploit is that most USB devices (not just flash drives) can have their firmware reprogrammed via software.

that is indeed a bad exploit.
What about antimalware/antiviruses programs like Norton,kaspersky,avira.Mc affee?
Could they detect those malicious software,when they are widespread and known ?

Perlover

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I don't know somebody wrote to here or not.
But i think the Armory and other programs could have a potential vulnerability.

For example what if your computer with installed Armory (watch-only wallet mode) is infected and trojan/virus which modifies a receiving address in Armory's interface? How can i trust to my online watch-only computer that all generated addresses are my addresses? What if trojan/virus modifies installed DLLs/Shared libraries of Armory and substitute watch-only generated addresses or seed to hacker things? If i will send to money to generated address how can i sure that this address is my address for private key at offline computer? :-/

What do developers think about this?

chrisrico

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Quote from: segeln on October 02, 2014, 07:24:26 AM

are only USB sticks right from the factory affected or old used ones as well?
As I understand it,USB Sitcks in use cannot get compromised

Nope, the whole reason why this is such a bad exploit is that most USB devices (not just flash drives) can have their firmware reprogrammed via software.

segeln

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Quote from: justusranvier on October 02, 2014, 07:14:45 AM

http://www.wired.com/2014/10/code-published-for-unfixable-usb-attack/

https://github.com/adamcaudill/Psychson

are only USB sticks right from the factory affected or old used ones as well?
As I understand it,USB Sitcks in use cannot get compromised

segeln

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Quote from: bitpop on October 02, 2014, 06:06:21 AM

Quote from: segeln on October 02, 2014, 06:02:55 AM

Quote from: cypherdoc on September 30, 2014, 03:19:48 PM

when will 0.92.2 be out of testing?

I ask this question again
Hope I and cypherdoc get an answer

I don't think there's bugs so it doesn't really matter. Armory just likes to call everything testing.

Thanks,hope you are right

justusranvier

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http://www.wired.com/2014/10/code-published-for-unfixable-usb-attack/

https://github.com/adamcaudill/Psychson

bitpop

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Quote from: segeln on October 02, 2014, 06:02:55 AM

Quote from: cypherdoc on September 30, 2014, 03:19:48 PM

when will 0.92.2 be out of testing?

I ask this question again
Hope I and cypherdoc get an answer

I don't think there's bugs so it doesn't really matter. Armory just likes to call everything testing.

segeln

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Quote from: cypherdoc on September 30, 2014, 03:19:48 PM

when will 0.92.2 be out of testing?

I ask this question again
Hope I and cypherdoc get an answer

pitiflin

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Quote from: bitpop on October 01, 2014, 04:20:33 PM

Quote from: pitiflin on October 01, 2014, 04:07:05 PM

Stupid (maybe not) question.

I want to update Armory, should I update Bitcoin Core as well?

You don't have to but latest core is more critical than latest armory

Thanks

bitpop

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Quote from: pitiflin on October 01, 2014, 04:07:05 PM

Stupid (maybe not) question.

I want to update Armory, should I update Bitcoin Core as well?

You don't have to but latest core is more critical than latest armory

pitiflin

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Stupid (maybe not) question.

I want to update Armory, should I update Bitcoin Core as well?

justusranvier

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I managed to create a situation where Armory 0.92.1 will perform a full blockchain scan every time the program is loaded.

I run bitcoind on a different (virtual) machine than Armory.

When I use NFS to share the blockchain directory, everything works.

Since both the bitcoind VM and the Armory VM are running on the same host, I tried moving the blockchain directory to the host and sharing it with both via 9pfs. The bitcoind VM gets read-write access, and the Armory VM gets read-only access.

Armory will perform a successful scan of the blockchain.

When I close it and open it up again, I get a

"Block file is in the wrong network! MagicBytes: 00000000" error and it starts over from the beginning.

SimonBelmond

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Quote from: globe-biz on October 01, 2014, 02:21:33 AM

Hello, I am here tonight to see if you can help with a thought I have. I want to download Armory but I have worries that it will require me to download the blockchain again. I remember the 60 hours I spent waiting to download blockchain before with the qt client I think it is called.

My question is this:

If I download the Armory wallet and synch it, will it take more than...20 minutes?
Electrum looks good because it does not require a full download of the blockchain

Thank you

If you already have a Bitcoin core installtion, Armory will go on top of it. For me armory takes about 5 min untill the DB is built and the wallet is online once the Blockchain has finished catching up. So yes it does require a full blckchain downlad, but you can use the one you have already.

globe-biz

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Hello, I am here tonight to see if you can help with a thought I have. I want to download Armory but I have worries that it will require me to download the blockchain again. I remember the 60 hours I spent waiting to download blockchain before with the qt client I think it is called.

My question is this:

If I download the Armory wallet and synch it, will it take more than...20 minutes?
Electrum looks good because it does not require a full download of the blockchain

Thank you

cypherdoc

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when will 0.92.2 be out of testing?

flipperfish

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Dolphie Selfie

Quote from: segeln on September 30, 2014, 12:40:02 PM

Quote from: etotheipi on September 26, 2014, 06:36:27 PM

You can update your online computer without touching the offline computer if you install 0.91.2 online.

is 0.91.2 typo?
should it not be 0.92 + ??

v0.91.2 is the last version, that supports the old format for offline signing (the .unsigned.tx and .signed.tx files). Newer versions create unsigned transactions in a new format. If the offline computer is not updated to a version newer (or equal) than 0.92, it does not understand the new format.

Topic: Armory - Discussion Thread - page 24. (Read 521901 times)