7 small numbers, and a username? Your data sounds pretty small.

Perhaps you could create a one time pad on the server (assuming you have a source of true randomness, like /dev/random under Linux), then pass in the index number of the one time pad in plaintext, and the encrypted data. That's the "most perfect" form of encryption, but generating and transmitting a one time pad is cumbersome.

Since you're maintaining the one time pad file on your own web server, you don't need to transmit it. Generating it may or may not be practical: you need a source of true randomness. You also need some way to keep it from getting too big or too slow: by using the byte offset for your index, you could speed up lookups, but you'ld need some way to periodically trim the file, or it will get too big.

It's just a thought. You'll have to examine for yourself whether it could fit your needs.

--
Ytrew Q. Uiop

In reply to Re: Storing encrypted data in url by Ytrew
in thread Storing encrypted data in url by infidel2112

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