storing wallet backup in the cloud? | Bitcointalksearch.org

pedrog

legendary

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Quote from: benzenen on April 01, 2015, 05:40:11 AM

Dropbox is safe for storage ? if i use it what i need to do for highest security? Thanks a lot !

Quote from: pedrog on March 30, 2015, 10:03:25 PM

You should use SpiderOak, it has a 'zero knowledge' privacy system, read more at: https://spideroak.com/zero-knowledge/

I can send you a referral link, you'll get an extra GB for free.

Don't use Dropbox, well, at least don't use it for nothing important, it's good for storing music or stuff like that...

coinpr0n

hero member

Activity: 910

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As for cloud hosting providers everybody is providing that now. While it still involves a third-party (and I wouldn't use it as a unique point of failure) I would recommend MEGA above many of the others. They provide a decent amount of free storage and files are encrypted.

benzenen

newbie

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Dropbox is safe for storage ? if i use it what i need to do for highest security? Thanks a lot !

notlist3d

legendary

Activity: 1456

Merit: 1000

Quote from: vankoovo on March 31, 2015, 10:57:00 PM

Yes, that's good but just remember that : Nothing is absolutely safe.

Quote from: toytoboy on April 01, 2015, 12:18:39 AM

You can do that. but just remember: Nothing is safe absolutely.

Interesting to lower levels with almost exact same thing said. I agree with both just find it wierd how close they are on message.

toytoboy

newbie

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You can do that. but just remember: Nothing is safe absolutely.

vankoovo

newbie

Activity: 51

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Yes, that's good but just remember that : Nothing is absolutely safe.

notlist3d

legendary

Activity: 1456

Merit: 1000

Quote from: Kazimir on March 31, 2015, 04:21:54 AM

Quote from: defcon23 on March 31, 2015, 03:29:31 AM

Quote from: bitmarket.io on March 29, 2015, 03:41:13 AM

what do you think of storing your wallet backup in the cloud? like a storage service. like google drive / drop box / iCloud drive / etc...?

of course there is the USB stick and paper option too...

also how do you load a backup into bitcoin-qt?

definitely : NO.
dont trust any cloud service to store sensitives datas. Wink

As long as you encrypt it before uploading, it doesn't matter. You could even backup the data by publicly posting it on facebook and twitter for all you care. Encrypted means nobody can read it, no matter how or where you store it.

I think the problem is someone getting lazy and uploading a wallet that is not encrypted. With all the "bad people" in the world I just don't trust cloud storage for important items.

Amph

legendary

Activity: 3248

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better not, i find more secure my smartphone with windows installed than a cloud service

best solution is to keep a small amount on your desktop(this will tell you if your machine is safe, better than any antivirus) and store the rest on a classic usb/paper/general cold storage

vankoovo

newbie

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Store in cloud storage service is great but just remember that nothing is absolutely safe

Kazimir

legendary

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Quote from: defcon23 on March 31, 2015, 03:29:31 AM

Quote from: bitmarket.io on March 29, 2015, 03:41:13 AM

what do you think of storing your wallet backup in the cloud? like a storage service. like google drive / drop box / iCloud drive / etc...?

of course there is the USB stick and paper option too...

also how do you load a backup into bitcoin-qt?

definitely : NO.
dont trust any cloud service to store sensitives datas. Wink

As long as you encrypt it before uploading, it doesn't matter. You could even backup the data by publicly posting it on facebook and twitter for all you care. Encrypted means nobody can read it, no matter how or where you store it.

defcon23

legendary

Activity: 1120

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Quote from: bitmarket.io on March 29, 2015, 03:41:13 AM

what do you think of storing your wallet backup in the cloud? like a storage service. like google drive / drop box / iCloud drive / etc...?

of course there is the USB stick and paper option too...

also how do you load a backup into bitcoin-qt?

definitely : NO.
dont trust any cloud service to store sensitives datas. Wink

notlist3d

legendary

Activity: 1456

Merit: 1000

I personally would not store it on the cloud. I am a usb guy myself.

If you do upload it make sure it's encrypted.

pedrog

legendary

Activity: 2786

Merit: 1031

You should use SpiderOak, it has a 'zero knowledge' privacy system, read more at: https://spideroak.com/zero-knowledge/

I can send you a referral link, you'll get an extra GB for free.

stevenh512

full member

Activity: 137

Merit: 100

Quote from: Soros Shorts on March 29, 2015, 04:01:23 AM

Yeah, I use this method. I first PGP encrypt the wallet backup, then zip it, and finally attach it to a message on Gmail or some other mail service. Pretty convenient.

Compress it first, the ciphertext PGP/GPG produces will resemble a stream of random bytes and won't compress much (if at all). PGP/GPG also internally does some compression (using zlib, I believe, so basically zip or gzip compression) but you might be able to compress it further by using 7zip and encrypting the resulting .7z file.

This way your wallet is compressed as small as possible and you have up to three layers of protection (wallet passphrase, 7zip passphrase and PGP key/passphrase) along with an optional PGP signature so you can prove the file wasn't tampered with.

Of course this is all overkill assuming you have a strong passphrase on your wallet.dat, but it's nice to know that if someone hacked your dropbox or gmail account it might take them a few billion years to get through the multiple layers of encryption and access your wallet.

loan4

newbie

Activity: 42

Merit: 0

Quote from: bitmarket.io on March 29, 2015, 03:41:13 AM

what do you think of storing your wallet backup in the cloud? like a storage service. like google drive / drop box / iCloud drive / etc...?

of course there is the USB stick and paper option too...

also how do you load a backup into bitcoin-qt?

I think that nothing is absolutely safe, but if you dont know wherever to store it . That's one of your best choice

Kazimir

legendary

Activity: 1176

Merit: 1011

Rule of thumb: never use anything with a single point of failure.

For example, storing your wallet online, either in a cloud service or web wallet or FTP server or whatever: service may go down, they may accidentally wipe your data, they may get hacked, government may confiscate their servers, etc.

Storing it on your PC or USB: it may crash, get stolen, get destroyed if your house burns down, dog may eat it, etc.

Personally, I have stored the majority of my bitcoins (well, the seed of my HD wallet actually) in encrypted form on several places: on paper, on USB stick, and online (on my webserver, and I emailed it to myself). The encryption password is something that I can surely remember, but that nobody will ever be able to guess or brute force.

In case I die prematurely, I also wrote down part of the password somewhere between my physical belongings, so that if I happen to die, my family will find it (but a burglar that takes it couldn't do anything useful with it, even if he knew what is was). The rest of the password will be emailed automatically to them.

LiteCoinGuy

legendary

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In Satoshi I Trust

dont use this method for your life savings dude Roll Eyes

Abdussamad

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Quote from: bitmarket.io on March 30, 2015, 08:52:06 AM

Quote from: Soros Shorts on March 30, 2015, 07:30:38 AM

Quote from: bitmarket.io on March 30, 2015, 01:25:26 AM

What do you mean you need to make frequent backups of your wallet.dat? Wont one suffice?

Well, using the standard client, when you make a new receiving address or when the wallet makes a new automatic change address you'd want to save that. I think the standard wallet keeps a pool of 100 reserve addresses by default (https://en.bitcoin.it/wiki/Key_pool) that gets saved as part of the backup, so you only need to do backups when you are about to use up the pool. In the past, many people lost BTC when they restored a wallet from an old backup that did not contain newer receiving addresses that were created after the backup was made.

Of course if you don't use your wallet or your only use is for coins to keep coming in to the same address(es) then you don't need to keep making backups.

Good info.

Also I have a laptop and desktop. Is it possible to have Bitcoin-qt synced between the two machines so I can send and receive BTC from both machines using the same wallet and BTC funds? Does this question make sense?

bitcoin-qt generates random keys so your two wallet copies will diverge at some point. You should use a deterministic wallet like electrum if you want a wallet that remains consistent on multiple devices.

Encrypting a wallet with gpg does have advantages because an attacker would need the gpg private key to decrypt it. As long as you don't make the mistake of also uploading the gpg private key to your cloud backups you benefit from an additional layer of security.

bitmarket.io

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Activity: 1204

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Quote from: Soros Shorts on March 30, 2015, 07:30:38 AM

Quote from: bitmarket.io on March 30, 2015, 01:25:26 AM

What do you mean you need to make frequent backups of your wallet.dat? Wont one suffice?

Well, using the standard client, when you make a new receiving address or when the wallet makes a new automatic change address you'd want to save that. I think the standard wallet keeps a pool of 100 reserve addresses by default (https://en.bitcoin.it/wiki/Key_pool) that gets saved as part of the backup, so you only need to do backups when you are about to use up the pool. In the past, many people lost BTC when they restored a wallet from an old backup that did not contain newer receiving addresses that were created after the backup was made.

Of course if you don't use your wallet or your only use is for coins to keep coming in to the same address(es) then you don't need to keep making backups.

Good info.

Also I have a laptop and desktop. Is it possible to have Bitcoin-qt synced between the two machines so I can send and receive BTC from both machines using the same wallet and BTC funds? Does this question make sense?

Soros Shorts

donator

Activity: 1617

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Quote from: bitmarket.io on March 30, 2015, 01:25:26 AM

What do you mean you need to make frequent backups of your wallet.dat? Wont one suffice?

Well, using the standard client, when you make a new receiving address or when the wallet makes a new automatic change address you'd want to save that. I think the standard wallet keeps a pool of 100 reserve addresses by default (https://en.bitcoin.it/wiki/Key_pool) that gets saved as part of the backup, so you only need to do backups when you are about to use up the pool. In the past, many people lost BTC when they restored a wallet from an old backup that did not contain newer receiving addresses that were created after the backup was made.

Of course if you don't use your wallet or your only use is for coins to keep coming in to the same address(es) then you don't need to keep making backups.

Topic: storing wallet backup in the cloud? (Read 6825 times)