Invalidating the data store

The app eliminates the need to carry three separate devices for photo, video, and audio recording.

Instead, it builds upon the capabilities already in your pocket with the security and organization needed to protect truth.

This chapter is divided into the following topics: Oracle Database uses authentication, authorization, and auditing mechanisms to secure data in the database, but not in the operating system data files where data is stored.

To protect these data files, Oracle Database provides Transparent Data Encryption (TDE). To prevent unauthorized decryption, TDE stores the encryption keys in a security module external to the database.

When a table contains encrypted columns, a single table key is used regardless of the number of encrypted columns.

The table keys for all tables are encrypted with the database server master encryption key and stored in a dictionary table in the database. TDE tablespace encryption enables you to encrypt an entire tablespace.

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In this release, we have added some security enhancements such as invalidating your session when you logout and hiding snapshots of information when multi-tasking on your phone.The following sections discuss TDE column encryption and TDE tablespace encryption: TDE column encryption is used to protect confidential data, such as credit card and social security numbers, stored in table columns.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 wallet or Hardware Security Module (HSM).This master encryption key is used to encrypt the table key, which in turn is used to encrypt and decrypt data in the table column.

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