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https://issues.apache.org/jira/browse/HDFS-15098?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17111720#comment-17111720
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zZtai commented on HDFS-15098:
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[~Andrea_Julianos_one] I think it's because the default value of
"hadoop.security.key.default.cipher" is "AES/CTR/NoPadding".
when we change the value to "SM4/CTR/NoPadding", when execute " hadoop key
create " we will get SM4 key.
> Add SM4 encryption method for HDFS
> ----------------------------------
>
> Key: HDFS-15098
> URL: https://issues.apache.org/jira/browse/HDFS-15098
> Project: Hadoop HDFS
> Issue Type: New Feature
> Affects Versions: 3.4.0
> Reporter: liusheng
> Assignee: zZtai
> Priority: Major
> Labels: sm4
> Attachments: HDFS-15098.001.patch, HDFS-15098.002.patch,
> HDFS-15098.003.patch
>
>
> SM4 (formerly SMS4)is a block cipher used in the Chinese National Standard
> for Wireless LAN WAPI (Wired Authentication and Privacy Infrastructure).
> SM4 was a cipher proposed to for the IEEE 802.11i standard, but has so far
> been rejected by ISO. One of the reasons for the rejection has been
> opposition to the WAPI fast-track proposal by the IEEE. please see:
> [https://en.wikipedia.org/wiki/SM4_(cipher)]
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