User: dan_lesage

Re:One-time pads or algorithm?

On: AmEx To Offer "Disposable" Credit Card Numbers

Obviously the generation algorithm is not sufficient to protect the customer.

Here's how it could work: the customer goes to the Amex site, inputs his card number, his name and a private key, and gets his temporary card number and a "public" key. When he makes his purchase, he enters the temp card number and the public key; the site looks up the combination on a secure server at Amex and allows (or not) the transaction.

Why does it matter?

On: Metabrowsing Controversy Continues

So the search engines get moved offshore, out of reach of meddling government.

More power to us, less to them.