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Topic: Blockchain.info - Bitcoin Block explorer & Currency Statistics - page 163. (Read 482345 times)

donator
Activity: 532
Merit: 501
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The wallet is only encrypted with your password so you can email us and have the yubikey authentication removed (This must be from the email that is associated with your account).
Are you sure that you can reliably check if the sender's address is not forged ?
hero member
Activity: 910
Merit: 1005
Can you add support for Duo Security? It's a pretty neat service.

Looks like a good product but they really need to rethink their pricing strategy. Even at the small number of users My Wallet has at the moment it would be nearly $1000/month. I'll investigate the possibly of changing API key every request but I imagine this is against their TOS. At some point i will add email and skype as options since they are free.

Next feature I'm really craving is QR codes. Any plans for them on the receiving addresses?

Yep QR codes are already on my todo list.

This is cool, but seems a little bit dangerous for this application.  What happens if you lose your yubikey or drop it in the toilet?  Can you order a duplicate Yubikey as a backup?  With mtgox it's a bit different…if you lose your key, you can always verify your identity and get them to restore your access to your account.

I had thought about encrypting wallets with the yubikey identity token but decided against it for the reasons you mention. The wallet is only encrypted with your password so you can email us and have the yubikey authentication removed (This must be from the email that is associated with your account).

And am I understanding this correctly: the private key is stored encrypted on the servers and the encryption is handled by my browser? So if someone were to steal acquire the data they would not be able to spend my coins?

Yes your wallet would still be secure. I'm operating under the assumption here that a wallet encrypted with a 10 character AES password will take a significant amount of time to brute force, certainly enough time for you to move your coins to different addresses.

I've been trying this out and it's working great. Nice interface and versatility.

I've kept an encrypted backup of the wallet locally but I have a question. If your site vanishes is there some tool (prefer linux) or process documented that can read the wallet.json.aes file format and decrypt it so we can get to our keys?

Wait a minute - I just saw that you now charge a 1% fee on outgoing transactions. Is that new? I thought a few days ago it was a free wallet and you were thinking about advertising for support?

You should be able to use AES Crypt on linux http://hungrycoder.xenexbd.com/tutorial/how-to-install-aes-crypt-in-linux-to-encrypt-and-decrypt-your-files.html.

Yes the service has a 1% transaction fee for all outgoing transactions, I changed this a few days ago.  The site would not be sustainable from advertising alone and if the site is profitable then I have more time to implement new features and better security.
hero member
Activity: 784
Merit: 1009
firstbits:1MinerQ
I've been trying this out and it's working great. Nice interface and versatility.

I've kept an encrypted backup of the wallet locally but I have a question. If your site vanishes is there some tool (prefer linux) or process documented that can read the wallet.json.aes file format and decrypt it so we can get to our keys?

Wait a minute - I just saw that you now charge a 1% fee on outgoing transactions. Is that new? I thought a few days ago it was a free wallet and you were thinking about advertising for support?

sr. member
Activity: 322
Merit: 251
FirstBits: 168Bc
And am I understanding this correctly: the private key is stored encrypted on the servers and the encryption is handled by my browser? So if someone were to steal acquire the data they would not be able to spend my coins?

Yes, correct, assuming your passphrase is strong and your computer has not been compromised.
hero member
Activity: 868
Merit: 1007
I've added your ip slush, not able to connect yet but as soon as a few nodes leave I should be able to.

Added yubikey support to My Wallet. For more info see

https://blockchain.info/wallet/yubikey

As far as i'm aware My Wallet is the only wallet service to offer two factor authentication (other than Mt. Gox). Existing Mt. Gox yubikeys should be compatible.
This is cool, but seems a little bit dangerous for this application.  What happens if you lose your yubikey or drop it in the toilet?  Can you order a duplicate Yubikey as a backup?  With mtgox it's a bit different…if you lose your key, you can always verify your identity and get them to restore your access to your account.
donator
Activity: 798
Merit: 500
Next feature I'm really craving is QR codes. Any plans for them on the receiving addresses?

I was just going to ask the same question.  And am I understanding this correctly: the private key is stored encrypted on the servers and the encryption is handled by my browser? So if someone were to steal acquire the data they would not be able to spend my coins?
legendary
Activity: 1092
Merit: 1001
I've added your ip slush, not able to connect yet but as soon as a few nodes leave I should be able to.

Added yubikey support to My Wallet. For more info see

https://blockchain.info/wallet/yubikey

As far as i'm aware My Wallet is the only wallet service to offer two factor authentication (other than Mt. Gox). Existing Mt. Gox yubikeys should be compatible.

Wow~~,this is a serious wallet!

Really nice.  I just tested this with a mtgox yubikey.  I like that you can remove the two factor authentication and go back to just a password too.

Next feature I'm really craving is QR codes. Any plans for them on the receiving addresses?
hero member
Activity: 714
Merit: 500
I've added your ip slush, not able to connect yet but as soon as a few nodes leave I should be able to.

Added yubikey support to My Wallet. For more info see

https://blockchain.info/wallet/yubikey

As far as i'm aware My Wallet is the only wallet service to offer two factor authentication (other than Mt. Gox). Existing Mt. Gox yubikeys should be compatible.

Wow~~,this is a serious wallet!
hero member
Activity: 560
Merit: 501
Can you add support for Duo Security? It's a pretty neat service.

I took a quick look. It looks rather costly to actually use on a website. free up to 10 users but $3/user/month after that. Doesn't sound fit for a free wallet service... except perhaps as an optional service that costs at least $3/month. I can see how it could be useful but it feels overpriced for a web-wallet unless you're keeping astronomous amounts of wealth in there.
Every user would create their own implementation with an API key and secret, effectively negating the need for piuk to even sign up for the service. The API key for a specific wallet is passed at runtime, and I would assume using existing Yubikey backend code with minimal modifications wouldn't be too difficult.
member
Activity: 97
Merit: 10
Can you add support for Duo Security? It's a pretty neat service.

I took a quick look. It looks rather costly to actually use on a website. free up to 10 users but $3/user/month after that. Doesn't sound fit for a free wallet service... except perhaps as an optional service that costs at least $3/month. I can see how it could be useful but it feels overpriced for a web-wallet unless you're keeping astronomous amounts of wealth in there.
hero member
Activity: 560
Merit: 501
Can you add support for Duo Security? It's a pretty neat service.
hero member
Activity: 910
Merit: 1005
I've added your ip slush, not able to connect yet but as soon as a few nodes leave I should be able to.

Added yubikey support to My Wallet. For more info see

https://blockchain.info/wallet/yubikey

As far as i'm aware My Wallet is the only wallet service to offer two factor authentication (other than Mt. Gox). Existing Mt. Gox yubikeys should be compatible.
legendary
Activity: 1386
Merit: 1097
Are any incorrect or am I missing some? It could be that I cannot connect to your node, are you at the connection limit?

None of this IP is mine :-). Please try to connect to 176.31.157.133. Right now the node is on connection limit, but time to time some peers close connection. Or give me any of your static IP and I'll add it to my trusted IPs list.
hero member
Activity: 910
Merit: 1005
Maybe you explained it already, but why exactly it's hard to detect blocks from my pool?

I can't seem to locate the ip addresses correctly. Here are the ip addresses I have down.

81.95.121.13   Slush
46.105.119.41   Slush   
192.168.176.137   Slush   
178.86.239.19   Slush   
178.79.178.173   Slush
178.79.177.146   Slush   
178.79.170.65   Slush
178.79.168.31   Slush   
178.79.155.53   Slush
178.79.155.33   Slush   
178.79.154.170   Slush   
178.79.147.99   Slush
178.79.130.99   Slush   
109.74.195.190   Slush   

Are any incorrect or am I missing some? It could be that I cannot connect to your node, are you at the connection limit?
legendary
Activity: 1386
Merit: 1097
Maybe you explained it already, but why exactly it's hard to detect blocks from my pool?
donator
Activity: 532
Merit: 501
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That's a feature I was thinking might be useful -- a service that would import a wallet and all its keys.
This is second on my list of things to add, native import and export in wallet.dat format. Although why does the mainline client even need to use berkelydb for wallet.dat? Surely it would be better to use a human readable format to make it easier to repair in case of corruption. JSON would probably suffice.
JSON would be nice for manual editing, yes. But it may be much worse for bitcoinds used as servers (with Gb-sized wallets).
hero member
Activity: 910
Merit: 1005
That's a feature I was thinking might be useful -- a service that would import a wallet and all its keys.

This is second on my list of things to add, native import and export in wallet.dat format. Although why does the mainline client even need to use berkelydb for wallet.dat? Surely it would be better to use a human readable format to make it easier to repair in case of corruption. JSON would probably suffice.

First I want to make sure security is tight enough so yubikey and SMS two factor authentication are my priority for the moment.

Can't open my wallet on iPhone, when i click the "Open wallet" button, it just stuck there.Anyone has the same issue ?

btw: should i clean my cache? will private key stored on my disk?

Haven't tested it on an iPhone yet, I'll have a quick look this afternoon. You are free to clear your cache, any private keys you have added will be safe on the server.
hero member
Activity: 714
Merit: 500
Can't open my wallet on iPhone, when i click the "Open wallet" button, it just stuck there.Anyone has the same issue ?

btw: should i clean my cache? will private key stored on my disk?
sr. member
Activity: 322
Merit: 251
FirstBits: 168Bc
Well, yes, I've got a wallet cemetary of my own for different reasons. Merging/importing wallets is an obvious missing feature from the C++ client (I'm frustrated by the conservative - can't confuse the idiot's - mentality of the core developers).

But that's not the motivation of my thread here. Basically, I would like to be able to send bitcoins to another individual side channel (not in the block chain). The easiest way to do that today is just to give them a copy of a new wallet. While we're at it, why not encrypt the wallet. In fact, why not encrypt the wallet with the recipients own public bitcoin key (from which one of their addresses was derived).

In theory, the recipient could pass it on to a third party, and he to a fourth, and a fifth, ad infinitum. Of course, each recipient would be taking on enormous counter-counterparty risk, but the possibility allows for plausible deniability. Whenever a bitcoin actually hits the blockchain, even with a guilty 'paper' blockchain trail, one could simply claim 'wasn't me'. I passed that along side channel to a friend to a friend to a ... who knows how many times.
legendary
Activity: 2506
Merit: 1010
Wait a second, today, I can PGP encrypt my wallet and give it to you. Once you decrypt the wallet, you can do whatever you want with that wallet in the blockchain or side channel again. The only additional cleverness is rather than PGP, I'm just using your public elliptic key (associated with an address in the blockchain) because I'm confident you have the private key.

Or just upload an unencrypted wallet.dat, SSL (https upload) will keep the contents of the wallet secure.

I encrypt an entire wallet with your public key, email it to you, and you decrypt it and do whatever you want with the wallet. The blockchain is no wiser.

That's a feature I was thinking might be useful -- a service that would import a wallet and all its keys.  Because there is no easy way yet for (non-technical) people to merge wallets, those with multiple wallets (e.g, from a laptop and a separate on a desktop) are abandoning their old, empty wallets.  But perhaps some payment will still arrive to one of those addresses -- that happens enough to where people are storing an archive of their wallet now, ... just in case someone sends bitcoins to an old address.   If that wallet were to be imported on BlockChain.info, then all those keys from that old wallet could be retained.

At the time, I considered it to be a separate service -- a "wallet cemetary", where the service would take a cut should any bitcoins be received to those old addresses.  Maybe that would just be one of the methods for moving from a local, Satoshi client wallet to BlockChain.info's Wallet.
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