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From George H <george....@gmail.com>
Subject Database encryption
Date Wed, 18 Nov 2009 07:16:43 GMT
Hi all,

I use the derby database encryption frequently in my programs but I was
wondering how it really works.

Does it decrypt the db once on boot and then once more time on shutdown only
or does the database stay encrypted all the time and the data that goes back
and forth is encrypted/decrypted on the fly ?

One more question whose answer is not in the derby docs, when I specify an
encryption key in the jdbc url and I do not specify the
"encryptionKeyLength" parameter, what does it take as default value?
supposed I was using AES or Blowfish which can use 192 or 256bit keys, does
derby automatically guess the key length from the specified key?

George H

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