Message-ID: <F001.004CB721.20020909134322@fatcity.com>
Date: Mon, 09 Sep 2002 13:43:22 -0800
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From: "Steiner, Randy" <RASTEIN@NYCT.com>
Subject: using obfuscation
Organization: Fat City Network Services, San Diego, California
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Hi all,

I have downloaded the Metalink Notes on implementing dbms_obfuscation. I am
using multiple front ends on the database, so the way I plan to implement
the de-encryption is with a de-encrypt function in a view. 

Create View my_data
AS
Select de_encrypt(sensitive_data)  AS sensitive_data
,other_data
FROM original_table
;

If I select from the view with a where clause on other_data, the response
time is fine. If I select from the view with a where clause on
sensitive_data, I do a full table scan and which takes about 15 minutes.
The de-encrypt function is copied from a Metalink note, nothing fancy. 

Since I have various front ends, I can not de-encrypt the data in the front
end.  The only way I can think of is with the function in a view, but the
response time is unacceptable.  Does anyone have any thoughts on this?

Thanks
Randy
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-- 
Author: Steiner, Randy
  INET: RASTEIN@NYCT.com

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