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https://issues.apache.org/jira/browse/HIVE-7934?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Xiaomeng Huang updated HIVE-7934:
---------------------------------
Description:
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.
# 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}
# create an encrypted table
{code}
-- region-aes-column.q
drop table region_aes_column;
create table region_aes_column (r_regionkey int, r_name string) ROW FORMAT
SERDE 'org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe'
WITH SERDEPROPERTIES ('column.encode.columns'='r_name',
'column.encode.classname'='org.apache.hadoop.hive.serde2.aes.AESRewriter')
STORED AS TEXTFILE TBLPROPERTIES("hive.encrypt.keynames"="hive.k1");
insert overwrite table region_aes_column
select
r_regionkey, r_name
from region;
{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 region_aes_column;
OK
0 AFRICA
1 AMERICA
2 ASIA
3 EUROPE
4 MIDDLE EAST
Time taken: 0.9 seconds, Fetched: 5 row(s)
[root@huang1 hive_data]# su user1
[user1@huang1 hive_data]$ hive
hive> select * from region_aes_column;
OK
0 AFRICA
1 AMERICA
2 ASIA
3 EUROPE
4 MIDDLE EAST
Time taken: 0.899 seconds, Fetched: 5 row(s)
[root@huang1 hive_data]# su user2
[user2@huang1 hive_data]$ hive
hive> select * from region_aes_column;
OK
0 RcQycWVD
1 Rc8lam9Bxg==
2 RdEpeQ==
3 Qdcyd3ZH
4 ScskfGpHp8KIIuY=
Time taken: 0.749 seconds, Fetched: 5 row(s)
{code}
was:
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 can just get the ciphertext from client for any users. And
Base64Rewriter can just get plaintext from client for any users.
I have an improvement based on HIVE-6329 using key management via kms.
# 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}
# create an encrypted table
{code}
-- region-aes-column.q
drop table region_aes_column;
create table region_aes_column (r_regionkey int, r_name string) ROW FORMAT
SERDE 'org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe'
WITH SERDEPROPERTIES ('column.encode.columns'='r_name',
'column.encode.classname'='org.apache.hadoop.hive.serde2.aes.AESRewriter')
STORED AS TEXTFILE TBLPROPERTIES("hive.encrypt.keynames"="hive.k1");
insert overwrite table region_aes_column
select
r_regionkey, r_name
from region;
{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 region_aes_column;
OK
0 AFRICA
1 AMERICA
2 ASIA
3 EUROPE
4 MIDDLE EAST
Time taken: 0.9 seconds, Fetched: 5 row(s)
[root@huang1 hive_data]# su user1
[user1@huang1 hive_data]$ hive
hive> select * from region_aes_column;
OK
0 AFRICA
1 AMERICA
2 ASIA
3 EUROPE
4 MIDDLE EAST
Time taken: 0.899 seconds, Fetched: 5 row(s)
[root@huang1 hive_data]# su user2
[user2@huang1 hive_data]$ hive
hive> select * from region_aes_column;
OK
0 RcQycWVD
1 Rc8lam9Bxg==
2 RdEpeQ==
3 Qdcyd3ZH
4 ScskfGpHp8KIIuY=
Time taken: 0.749 seconds, Fetched: 5 row(s)
{code}
> 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.
> # 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}
> # create an encrypted table
> {code}
> -- region-aes-column.q
> drop table region_aes_column;
> create table region_aes_column (r_regionkey int, r_name string) ROW FORMAT
> SERDE 'org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe'
> WITH SERDEPROPERTIES ('column.encode.columns'='r_name',
> 'column.encode.classname'='org.apache.hadoop.hive.serde2.aes.AESRewriter')
> STORED AS TEXTFILE TBLPROPERTIES("hive.encrypt.keynames"="hive.k1");
> insert overwrite table region_aes_column
> select
> r_regionkey, r_name
> from region;
> {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 region_aes_column;
> OK
> 0 AFRICA
> 1 AMERICA
> 2 ASIA
> 3 EUROPE
> 4 MIDDLE EAST
> Time taken: 0.9 seconds, Fetched: 5 row(s)
> [root@huang1 hive_data]# su user1
> [user1@huang1 hive_data]$ hive
> hive> select * from region_aes_column;
> OK
> 0 AFRICA
> 1 AMERICA
> 2 ASIA
> 3 EUROPE
> 4 MIDDLE EAST
> Time taken: 0.899 seconds, Fetched: 5 row(s)
> [root@huang1 hive_data]# su user2
> [user2@huang1 hive_data]$ hive
> hive> select * from region_aes_column;
> OK
> 0 RcQycWVD
> 1 Rc8lam9Bxg==
> 2 RdEpeQ==
> 3 Qdcyd3ZH
> 4 ScskfGpHp8KIIuY=
> Time taken: 0.749 seconds, Fetched: 5 row(s)
> {code}
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