What is master key in TDE?

What is master key in TDE Oracle?

TDE column encryption uses the two-tiered key-based architecture to transparently encrypt and decrypt sensitive table columns. The TDE master encryption key is stored in an external security module, which can be an Oracle software keystore or hardware keystore.

What is master key in encryption?

A master key is a cryptographic key (typically a symmetric key ( Symmetric Cryptosystem)) whose sole purpose is to protect other keys, such as session keys, while those keys are in storage, in use, or in transit.

What is a master key in a database?

The database master key is a symmetric key used to protect the private keys of certificates and asymmetric keys that are present in the database. When it is created, the master key is encrypted by using the AES_256 algorithm and a user-supplied password.

How do I create a TDE master key?

1About Configuring a Software Keystore.2Step 1: Set the Software Keystore Location in the sqlnet.ora File.3Step 2: Create the Software Keystore.4Step 3: Open the Software Keystore.5Step 4: Set the Software TDE Master Encryption Key.6Step 5: Encrypt Your Data.Managing the Keystore and the TDE Master Encryption Key