Quote from: BlackLilac on October 30, 2012, 07:16:18 AM

Quote from: kuaka on October 24, 2012, 05:46:52 PM

I don't even trust my bank to hold my FRN's securely. I rarely keep more than 200 in my account. It is there for direct deposit payments, which get withdrawn as rapidly as possible. Cash in safe is as secure as FRN's can be...I'm just now looking at Bitcoin as an alternative, and will be dabbling with "losable" quantities at first, once I understand the technology sufficiently to delve into it. I wasn't even aware of Bitcoin until two days ago...

Look into creating a secure cold wallet.

Do you have a 1BTC Series 2 Casascius Coin?

I am experimenting with a way to make a secure cold wallet.

The way it would work is I e-mail you the public key for your coin (which I have for most of the series 2 coins). You plug it into a utility that I wrote, and it generates another private key and a "2-factor bitcoin address". The utility just performs an elliptic curve point multiply.

Getting funds out of that 2-factor address requires the private key under the coin plus the private key you generated. The utility can also compute this - combining the two private keys is just scalar multiplication.