A better solution, but probably not possible for you given what you've said, is to use authenicating client/server architecture. Otherwise, your encryption schema sounds reasonable. There's more than a fair share of encryption modules for perl, for example, you could use Crypt::OpenPGP which can easily encrypt and decrypt text strings. The program on the call center end should encrypt each line with the key id of the intended recipient, and then you can simply grep through the lines that start with your key, then decrypt them.

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Dr. Michael K. Neylon - mneylon-pm@masemware.com || "You've left the lens cap of your mind on again, Pinky" - The Brain
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In reply to Re: Reversible per-line "encryption" by Masem
in thread Reversible per-line "encryption" by bmcatt

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