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Owen O'Malley commented on HDFS-6134: ------------------------------------- Sorry, I messed up my math. Assuming that you have 1million files per key and 8 bytes of randomness, you get 2.7e-8, which is close enough to 0. At 16 bytes or 32 bytes of randomness, doubles underflow when calculating the percentage. > Transparent data at rest encryption > ----------------------------------- > > Key: HDFS-6134 > URL: https://issues.apache.org/jira/browse/HDFS-6134 > Project: Hadoop HDFS > Issue Type: New Feature > Components: security > Affects Versions: 2.3.0 > Reporter: Alejandro Abdelnur > Assignee: Alejandro Abdelnur > Attachments: HDFSDataatRestEncryptionProposal_obsolete.pdf, > HDFSEncryptionConceptualDesignProposal-2014-06-20.pdf > > > Because of privacy and security regulations, for many industries, sensitive > data at rest must be in encrypted form. For example: the healthÂcare industry > (HIPAA regulations), the card payment industry (PCI DSS regulations) or the > US government (FISMA regulations). > This JIRA aims to provide a mechanism to encrypt HDFS data at rest that can > be used transparently by any application accessing HDFS via Hadoop Filesystem > Java API, Hadoop libhdfs C library, or WebHDFS REST API. > The resulting implementation should be able to be used in compliance with > different regulation requirements. -- This message was sent by Atlassian JIRA (v6.2#6252)