Colin Ma updated HBASE-16414:
    Attachment: HBASE-16414.009.patch

Update patch according to the comments from review board.

> Improve performance for RPC encryption with Apache Common Crypto
> ----------------------------------------------------------------
>                 Key: HBASE-16414
>                 URL: https://issues.apache.org/jira/browse/HBASE-16414
>             Project: HBase
>          Issue Type: Improvement
>          Components: IPC/RPC
>    Affects Versions: 2.0.0
>            Reporter: Colin Ma
>            Assignee: Colin Ma
>         Attachments: HBASE-16414.001.patch, HBASE-16414.002.patch, 
> HBASE-16414.003.patch, HBASE-16414.004.patch, HBASE-16414.005.patch, 
> HBASE-16414.006.patch, HBASE-16414.007.patch, HBASE-16414.008.patch, 
> HBASE-16414.009.patch, HbaseRpcEncryptionWithCrypoto.docx
> Hbase RPC encryption is enabled by setting “hbase.rpc.protection” to 
> "privacy". With the token authentication, it utilized DIGEST-MD5 mechanisms 
> for secure authentication and data protection. For DIGEST-MD5, it uses DES, 
> 3DES or RC4 to do encryption and it is very slow, especially for Scan. This 
> will become the bottleneck of the RPC throughput.
> Apache Commons Crypto is a cryptographic library optimized with AES-NI. It 
> provides Java API for both cipher level and Java stream level. Developers can 
> use it to implement high performance AES encryption/decryption with the 
> minimum code and effort. Compare with the current implementation of 
> org.apache.hadoop.hbase.io.crypto.aes.AES, Crypto supports both JCE Cipher 
> and OpenSSL Cipher which is better performance than JCE Cipher. User can 
> configure the cipher type and the default is JCE Cipher.

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