Encryption question

From: Steve Kallal (SteveKallal_at_discussions.microsoft.com)
Date: 03/14/05 

Date: Mon, 14 Mar 2005 10:38:41 -0800

I need to find a form of encryption that always encrypts a given plain text
string to the exact same encrypted string every time. I want to use a form of
output caching in my ASP.NET application that will use a cached version of a
web page if the query string parameters are exact each time. If the encrypted
query string varies each time, even with the same plain text string, the
cache likely will not work.

Every encryption algorithm I have tried so far using the System.Security
namespace, produces a different encrypted string each time I try it.

Thanks in advance!

Steve Kallal

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