Yeah, you've got it right. But good lord, what a hassle man... just set up a persistent volume. If you're only buying stuff, nobody's gonna care enough to rip apart your drive**.** That's only my opinion. Others may disagree.No, you'd need your own private-public keypair to decrypt a message they sent to you (that's IF it were encrypted, but if you don't give them a public key, there's no way they even can encrypt a message for you). They're pairs. What's encrypted with a public key can only be decrypted by the paired private key (which you don't give out, that's only for you, naturally). So you'd need persistent storage of *some* kind to store your private key, and then you'd give the vendor your public one.