Re: using mySQL to store credit card info

[Leigh Glasspell]

You wrote;
Encryption_password can be stored encrypted by user password for any user who need it. When user logon, Encryption_password is decrypted by user-logon-password and stored into the RAM. Encryption_password when stored into the memory can be additionally encrypted by session_password for current session (this is protection from Windows swap-file problem). Last case we get "nested" decryption: key for data decryption previously decrypted by session_password.

I would really like to understand this, or at least how to do this.