Well, if your web-system doesn't need to READ the data (assuming you're reading it with another, not publically accessible system), you could use a public/private key encryption like PGP, so you can encrypt the data on the server, but only decrypt it using another key only known to the other system.

Joost.

"What should it profit a man, if he should win a flame war, yet lose his cool?"

In reply to Re^3: What *are* the best ways to encrypt data? by Joost
in thread What *are* the best ways to encrypt data? by bradcathey

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