using obfuscation

From: Steiner, Randy <RASTEIN_at_NYCT.com>
Date: Mon, 09 Sep 2002 13:43:22 -0800
Message-ID: <F001.004CB721.20020909134322@fatcity.com>

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_at_NYCT.com

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