Re: Questions about TDE
- From: Stefan Knecht <knecht.stefan@xxxxxxxxx>
- To: harshan.eppuram@xxxxxxxxx
- Date: Tue, 24 Feb 2009 11:01:04 +0100
Another thing to keep in mind ...
With TDE, the en/de-cryption takes place upon USING the data (sending to
client, etc). Therefore it stays encrypted in memory (buffer cache, log
buffer, sort segments, etc etc)
With Tablespace encryption, en/de-cryption takes place upon READING FROM
DISK (resp writing to disk). Therefore it stays in PLAINTEXT in all memory
regions.
Cheers
Stefan
=========================
Stefan P Knecht
CEO & Founder
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=========================
On Tue, Feb 24, 2009 at 1:16 AM, harshan eppuram
<harshan.eppuram@xxxxxxxxx>wrote:
> Hi All,
>
> We are implementing TDE(Transidential Data Encryption) on a solaris box
> 10gr2 RAC ASM for one of client which is a Bank. We are facing following two
> issues. This is a 4 TDB database.
>
> 1. Joining between encrypted and no encrypted table's columns are not
> working.
> 2. Encryption process is taking too much of time say 5 days ( We first
> created tables with out encryption loaded data and then modified the columns
> to be encrpted)
>
> Let me know if anybody come accross such sitiuation.
>
> Thanks and Regards
> Harshan
>
>
> --
> Harshan Eppurath
> 040-40214832
> 09392426435
>
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