On Mon, Apr 29, 2013 at 10:30:47PM +0800, Crypto Stick wrote: > Crypto Stick is an open source USB key for encryption and secure > authentication. > We have been accepted as a mentor organization for Google > Summer of Code (GSOC) 2013. One of our project ideas is to develop a > physical BitCoin wallet according to > https://en.bitcoin.it/wiki/Smart_card_wallet
A word of caution: hardware Bitcoin wallets really do need some type of display so the wallet itself can tell you where the coins it is signing are being sent, and that in turn implies support for the upcoming payment protocol so the wallet can also verify that the address is actually the address of the recipient the user is intending to send funds too. The current Crypto Stick hardware doesn't even have a button for user interaction. (press n times to approve an n-BTC spend) Having said that PGP smart cards and USB keys already have that problem, but the consequences of signing the wrong document are usually less than the consequences of sending some or even all of the users funds to a thief. You can usually revoke a bad signature after the fact with a follow-up message. Not to say hardware security for private keys isn't a bad thing, but the protections are a lot more limited than users typically realize. I will say though I am excited that this implies that the Crypto Stick could have ECC key support in the future. -- 'peter'[:-1]@petertodd.org
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