<p>Yes, there is <a href="http://smartcardwallet.org/" rel="nofollow">Smart Card Wallet</a> project, though there seems to be no clear indication on what stage the project currently is.</p>

<p>There is also <a href="https://bitcointalk.org/index.php?topic=122438.0" rel="nofollow">hardware wallet by Slush</a>. It's not smart card based, but works pretty much the same way. Also still in development.</p>

CC BY-SA 3.0
2012-12-19T07:49:18.823Z
2012-12-19T07:49:18.823Z
aland
<p>I know that the underlying digitial signing method Bitcoin uses for transactions is ECDSA (sep256k1 if memory serves). I've also read a few papers about performing ECDSA signing on certain kinds of smart cards. Has anyone merged these concepts and made (or attempted to make) a smart card that can sign a transaction with an internally-held private key?</p>

<signature><ecdsa><bitcoin-credit-card><debitcard>
ECDSA transaction signing on a smartcard?
David Perry
# ECDSA transaction signing on a smartcard?

(Asked by: username_0 on 2012-12-19)

I know that the underlying digitial signing method Bitcoin uses for transactions is ECDSA (sep256k1 if memory serves). I've also read a few papers about performing ECDSA signing on certain kinds of smart cards. Has anyone merged these concepts and made (or attempted to make) a smart card that can sign a transaction with an internally-held private key?

**Tags:** signature, ecdsa, bitcoin-credit-card, debitcard


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## 1 answers

### Answer by username_1 on 2012-12-19. Score: 3 | Accepted answer

Yes, there is [Smart Card Wallet](http://smartcardwallet.org/) project, though there seems to be no clear indication on what stage the project currently is.

There is also [hardware wallet by Slush](https://bitcointalk.org/index.php?topic=122438.0). It's not smart card based, but works pretty much the same way. Also still in development.


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