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© Hortonworks Inc. 2018
ORC Column Encryption
May 2018
Page 1
Owen O’Malley
owen@hortonworks.com
@owen_omalley
© Hortonworks Inc. 2018
Controlling Sensitive Data
Page 2
© Hortonworks Inc. 2018
What is the Problem?
Page 3
© Hortonworks Inc. 2018
Partial Solution – HDFS Encryption
Page 4
© Hortonworks Inc. 2018
KeyProvider API
Page 5
© Hortonworks Inc. 2018
HDFS Encryption Limitations
Page 6
© Hortonworks Inc. 2018
Partial Solution – Hive Server 2
Page 7
© Hortonworks Inc. 2018
Hive Architecture with Hive Server 2
Page 8
© Hortonworks Inc. 2018
Hive Server 2 Limitations
Page 9
© Hortonworks Inc. 2018
Partial Solution – Encryption UDF
Page 10
© Hortonworks Inc. 2018
Partial Solution – Separate tables
Page 11
© Hortonworks Inc. 2018
Solution – Columnar Encryption
Page 12
© Hortonworks Inc. 2018
Key Management
Page 13
© Hortonworks Inc. 2018
Attribute-Based Access Control (ABAC)
Page 14
© Hortonworks Inc. 2018
Key Disposal
Page 15
© Hortonworks Inc. 2018
Encrypting Columns
Page 16
© Hortonworks Inc. 2018
Data Masking
Page 17
© Hortonworks Inc. 2018
Data Masking
Page 18
© Hortonworks Inc. 2018
ORC File Format
Page 19
File Footer
Postscript
Index Data
Row Data
Stripe Footer
~200MBStripe
Index Data
Row Data
Stripe Footer
~200MBStripe
Index Data
Row Data
Stripe Footer
~200MBStripe
Column 1
Column 2
Column 7
Column 8
Column 3
Column 6
Column 4
Column 5
Column 1
Column 2
Column 7
Column 8
Column 3
Column 6
Column 4
Column 5
Stream 2.1
Stream 2.2
Stream 2.3
Stream 2.4
© Hortonworks Inc. 2018
ORC Column Encryption
Page 20
© Hortonworks Inc. 2018
ORC Write Pipeline
Page 21
© Hortonworks Inc. 2018
Encryption flow
Page 22
© Hortonworks Inc. 2018
AES/CTR
Page 23
© Hortonworks Inc. 2018
Conclusions
Page 24
© Hortonworks Inc. 2018
Challenges
Page 25
© Hortonworks Inc. 2018
Limitations
Page 26
© Hortonworks Inc. 2018
Questions?
Page 27

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ORC Column Encryption