[
https://issues.apache.org/jira/browse/HIVE-7934?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14240863#comment-14240863
]
Xiaomeng Huang commented on HIVE-7934:
--------------------------------------
Hi [~chirag.aggarwal]
I have updated my patch on HIVE-8049 using crypto codec and kms in
hadoop-common.
> Improve column level encryption with key management
> ---------------------------------------------------
>
> Key: HIVE-7934
> URL: https://issues.apache.org/jira/browse/HIVE-7934
> Project: Hive
> Issue Type: Improvement
> Reporter: Xiaomeng Huang
> Assignee: Xiaomeng Huang
> Priority: Minor
>
> Now HIVE-6329 is a framework of column level encryption/decryption. But the
> implementation in HIVE-6329 is just use Base64, it is not safe and have some
> problems:
> - Base64WriteOnly just be able to get the ciphertext from client for any
> users.
> - Base64Rewriter just be able to get plaintext from client for any users.
> I have an improvement based on HIVE-6329 using key management via kms.
> This patch implement transparent column level encryption. Users don't need to
> set anything when they quey tables.
> # setup kms and set kms-acls.xml (e.g. user1 and root has permission to get
> key)
> {code}
> <property>
> <name>hadoop.kms.acl.GET</name>
> <value>user1 root</value>
> <description>
> ACL for get-key-version and get-current-key operations.
> </description>
> </property>
> {code}
> # set hive-site.xml
> {code}
> <property>
> <name>hadoop.security.key.provider.path</name>
> <value>kms://http@localhost:16000/kms</value>
> </property>
> {code}
> # create an encrypted table
> {code}
> drop table student_column_encrypt;
> create table student_column_encrypt (s_key INT, s_name STRING, s_country
> STRING, s_age INT) ROW FORMAT SERDE
> 'org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe'
> WITH SERDEPROPERTIES ('column.encode.columns'='s_country,s_age',
> 'column.encode.classname'='org.apache.hadoop.hive.serde2.crypto.CryptoRewriter')
>
> STORED AS TEXTFILE TBLPROPERTIES('hive.encrypt.keynames'='hive.k1');
> insert overwrite table student_column_encrypt
> select
> s_key, s_name, s_country, s_age
> from student;
>
> select * from student_column_encrypt;
> {code}
> # query table by different user, this is transparent to users. It is very
> convenient and don't need to set anything.
> {code}
> [root@huang1 hive_data]# hive
> hive> select * from student_column_encrypt;
> OK
> 0 Armon China 20
> 1 Jack USA 21
> 2 Lucy England 22
> 3 Lily France 23
> 4 Yom Spain 24
> Time taken: 0.759 seconds, Fetched: 5 row(s)
> [root@huang1 hive_data]# su user2
> [user2@huang1 hive_data]$ hive
> hive> select * from student_column_encrypt;
> OK
> 0 Armon dqyb188= NULL
> 1 Jack YJez NULL
> 2 Lucy cKqV1c8MTw== NULL
> 3 Lily c7aT180H NULL
> 4 Yom ZrST0MA= NULL
> Time taken: 0.77 seconds, Fetched: 5 row(s)
> {code}
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
