|XP is just a number|
Re: Encrypting Credit card numbersby spacewarp (Pilgrim)
|on Apr 23, 2001 at 07:33 UTC||Need Help??|
I freely admit that I have no experience encrypting sensitive data, but as I read through the responses on this thread, a rather queer idea occurred to me:
Would would everyone think of a system whereby the user chooses a password when then enter their CC#. On the server, that password in encrypted using crypt() or some similar one-way encryption, and then the line of gibberish that is the encrypted password is used as the key for the encryption on the actual CC#. That way, the numbers can be stored on the server, while the keys aren't.
Would something like this work?
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