Brainwallets are a very good and useful concept but no so secure when we human, choose our own words as passphrase. People tend to set simple or preexisting sentences and are finally robbed pretty quickly... I created JsBitcoin so that we must and can only use one generated by a secure random 128bit key which is converted in a sequence of 12 words picked in a list of 1626 words. It's an extension of the public domain brainwallet.org codebase and carbonwallet. It generate 10 bitcoin addresses and a nice private-keys backup page to print. You can download your own copy of this single-paged app to create wallets for cold storage in a secure environment... Perfect for a small linux-based bootcd/usbkey wallet.
Website: http://jsbitcoin.comYour comments are welcome!
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