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This is the link to an article about a Data Encryption feature in the Oracle 11.2 database:
http://www.dba-oracle.com/t_11g_new_transparent_tablespace.htm
This article is from Burleson Consulting, who consult and support Oracle databases.
Our textbook indicates Oracle databases make up 40% of the databases in this country. Their ability to store a wide range of data makes Oracle the market leader and often a target of security issues. Oracle version 11.2 allows users to store any table in encrypted form by designating a tablespace as encrypted using the Transparent Data Encryption(TDE) feature. You can store multiple tables in a tablespace and multiple tablespaces make up an Oracle database.
Oracle does this by using a master encryption key and an external encryption 'wallet'. It can use either 3DES168, AES128, AES192, or AES256 encryption algorithms. This encryption will protect data like credit card numbers or social security numbers from hackers who may be able to copy a database datafile from the server. Anyone storing sensitive customer information in an Oracle database should be using this TDE feature.
Go Gators !
Wayne
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