Oracle TDE – the basic information you need to know when encrypting the whole database
TDE – Transparent Data Encryption – is the Oracle solution for protecting data at rest. This refers, protecting data that is stored in one file or one disk. This data will be encrypted. Only after the database is open and the wallet password is given, you can query the data and see it.
Recently I’ve been working more with ExaCC and migrating databases from on-premises to the Cloud. Took quite some days to get into TDE and sometimes confusing terms used in the documentation and on the web.
This post summarizes all the concepts to have in mind when working with Oracle encrypted databases, which is the default in the Cloud and Exadata systems.
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