Hello Neelesh,   For encryption, you will need a license key to leverage this feature. I would like to point out is that you have the ablitily to deploy HDFS Transparent Encryption, Cloudera Navigator Encrypt, and the Key Trustee Server in an automated way with Cloudera Manager.   The HDFS Transparent Encryption will allow you to data at rest encrypt your HDFS data. The Cloudera Navigator Encrypt allows you to encrypt additional filesystems on your linux systems that hold your metadata and logs. (/var/log & /opt/mysql)  The Key Trustee Server allows you to centerally manage your keys to keep them secure and not left laying around on all of the servers that are using the Encryption.    Look for  Encryption & Key Management (Cloudera Navigator Encrypt & Key Trustee) in http://www.cloudera.com/content/dam/www/marketing/resources/datasheets/cloudera-enterprise-datasheet.pdf.landing.html   Thanks, Brandon      ... View more