I mentioning this as a matter of style. I have not yet seen your PDF, but it could look like a cheque or certificate with your brand ("In Puik we Trust"), rather than just an archival artifact. I am suggesting that users could generate a one time wallet simply to create fixed denomination cheques. Each cheque presumably contains a unique encrypted wallet. You can give the cheque to someone and they would need the passphrase to decrypt and transfer the funds. The passphrase is thus the activation 'signature'.



Brilliant. You are not too far from creating a scrambling service.



So that I can generate a private key offline, create offline transactions, but send the public address to your server for balance tracking?

Yes it should be. Vanity gen is base58 i think so copy the 'Privkey' text in 'Import Private Key' text box and it should work. Let me know if it doesn't.


Interesting idea, it could done fairly easily. But to redeem the cheque you would have to type in the private key by hand and the private key address would need to have the exact balance of the cheque.



Yeah exactly. I've implemented kinda sorta offline mode now you can generate a transaction offline after you have gotten the unspent outputs from the server. So at the point at which you need to enter the private key you can go offline. You'll see something like this.



A general use case:

You have a 'current' account where you keep a limited amount of coins to do whatever it is you do with bitcoins. Then a 'savings' account which you keep the majority of you holdings. For the current account you keep both the bitcoin address and private key in the wallet, so you can send and receive transactions quickly. But with the savings account you keep only the bitcoin address and have a paper backup of the private key. So you can see the transactions and balances of both accounts but there is absolutely now way your savings account private key can leak.

To move money from the savings account to the current account you would create an offline transaction, typing in the private key by hand. That way the private key touches only your browser for a few seconds and it not transmitted over the internet, even in encrypted form.

New Features Tonight

• Aliases for new wallets as suggested by koin
• 'Add to my Wallet' on blockchain.info address pages
• Offline transactions
• firefox bug fixes

The online wallet is awesome!
Will you add the "green address" function?

Thank you for your elaboration,
encryption before storage is even better!

For the wallet Lastpass doesn't seem to recognize the password field, I have to manually enter my wallet password everytime.  Is there a way to change this?  I like lastpass because it generates 32 key random passwords for each separate site I visit, I don't want to have to remember/store a complicated password to login to this.

Ok, Vanity generates private keys in Sipa Wallet Format

Could you explain outputs or provide a link? The wiki Transactions doesn't cut it for me. To me, when I send bitcoins, I collect a bunch of addresses, add up their balance, and using each address, sign the fact that I am redirecting their total balance to a new set of addresses. The 'output' is just the amounts, the destination addresses, the same tiny script 99% of all transactions use, all wrapped in my address signatures. As long as I know my address balances have not changed, what state change could have happened? My understanding of 'output' must be horribly naive.

Is it possible to take a minimal wallet and encrypt it with the recipient's public address and send it to the recipient side channel? In theory, couldn't the recipient use the associated private key to decrypt it? (Are elliptic keys reversible in the same way as RSA?) If this were common, wouldn't bitcoin truly be anonymous, every transaction plausibly deniable?

I guess the good thing about this wallet site is you can backup your own priv keys incase the site does go down.

Not as yet. Hopefully should be backup this morning but I rang the datacenter company and doesn't look like there even up yet. Considering how much I pay them they have pretty crappy support.