Compare Encrypted String Using SQL

Question

I have some data encrypted in SQL.
I want to use the LIKE command in SQL to compare a submitted form value to an encrypted value in the table.
How can I do this?
<cfquery>
SELECT *
FROM table
WHERE decrypt(name,key) = '#form.name#'
</cfquery>
Of course the decrpyt does not work in the example above as it gives an error. But how can I achieve the results without error?
Thanks.
Chuck

Answer 1

Making some headway here.
Here is what I have so far.
<cfquery name="cust" datasource="#DSN#" username="#USER#" password="#PASS#">
SELECT *
FROM customer
</cfquery>
<CFLOOP query="cust">
<CFSET temp = QuerySetCell(cust,"decust_co","#Decrypt(cust.cust_co,variable.ekey)#",#cust.currentrow#)>
<CFSET temp = QuerySetCell(cust,"decust_last","#Decrypt(cust.cust_last,variable.ekey)#",#cust.currentro w#)>
<CFSET temp = QuerySetCell(cust,"decust_first","#Decrypt(cust.cust_first,variable.ekey)#",#cust.current row#)>
</CFLOOP>
[Didn't think you would have to loop the QuerySetCell's, but you do
<cfquery dbtype="query" name="decust">
SELECT *
FROM cust
WHERE custid > 0
AND (decust_co LIKE '%#search#%'
OR decust_last LIKE '%#search#%'
OR decust_first LIKE '%#search#%'
OR acct_no LIKE '%#search#%')
ORDER BY decust_co
</cfquery>
OK...the part that is not working is my wildcard seach values. When I send a search variable of a single letter - C, M, H, etc...it will bring back results. If I send a NULL search variable - it will bring back all results...when I send a search variable with more than two characters - zero results. I am using two characters like "Ch" and one of the values is "Chuck". It should bring back a result. This query worked fine, prior to encrypting this data. I have verified the data in the QuerySetCell variables above are populating and decrypting correctly when I dumped the query.
Any idea?