Using Transparent Data Encryption in DataStax Enterprise

DataStax Enterprise 3.0 introduces transparent encryption (TDE) as a new security feature. TDE encrypts data at rest, protecting sensitive information such as HR records and credit card details. It is applied at the table or column family level during creation time using various encryption algorithms like AES 128. Once specified, no further action is needed for developers or administrators. For existing tables, an ALTER command is used followed by a nodetool scrub or flush command to update SStables with encryption. TDE can also be applied to Hadoop data in DataStax Enterprise but not to Solr indexes. Limitations include the need for a subscription for production deployments and no support for encrypting all Solr data.