iwasakims edited a comment on pull request #2847:
URL: https://github.com/apache/hadoop/pull/2847#issuecomment-811652915
OpensslAesCtrCryptoCodec is used for 'AES/CTR/NoPadding':
```
$ bin/hadoop key create key-aes -cipher 'AES/CTR/NoPadding'
$ bin/hdfs dfs -mkdir /zone-aes
$ bin/hdfs crypto -createZone -path /zone-aes -keyName key-aes
$ bin/hdfs dfs -put README.txt /zone-aes/
2021-04-01 05:23:37,755 DEBUG util.NativeCodeLoader: Trying to load the
custom-built native-hadoop library...
2021-04-01 05:23:37,756 DEBUG util.NativeCodeLoader: Loaded the
native-hadoop library
2021-04-01 05:23:38,457 DEBUG util.PerformanceAdvisory: Both short-circuit
local reads and UNIX domain socket are disabled.
2021-04-01 05:23:39,072 DEBUG crypto.OpensslAesCtrCryptoCodec: Using
org.apache.hadoop.crypto.random.OpensslSecureRandom as random number generator.
2021-04-01 05:23:39,073 DEBUG util.PerformanceAdvisory: Using crypto codec
org.apache.hadoop.crypto.OpensslAesCtrCryptoCodec.
...
$ bin/hdfs dfs -cat /zone-aes/README.txt
2021-04-01 05:23:52,844 DEBUG util.NativeCodeLoader: Trying to load the
custom-built native-hadoop library...
2021-04-01 05:23:52,845 DEBUG util.NativeCodeLoader: Loaded the
native-hadoop library
2021-04-01 05:23:53,549 DEBUG util.PerformanceAdvisory: Both short-circuit
local reads and UNIX domain socket are disabled.
2021-04-01 05:23:54,084 DEBUG kms.KMSClientProvider: KMSClientProvider
created for KMS url: http://localhost:9600/kms/v1/ delegation token service:
kms://http@localhost:9600/kms canonical service: 127.0.0.1:9600.
2021-04-01 05:23:54,087 DEBUG kms.LoadBalancingKMSClientProvider: Created
LoadBalancingKMSClientProvider for KMS url: kms://http@localhost:9600/kms with
1 providers. delegation token service: kms://http@localhost:9600/kms, canonical
service: 127.0.0.1:9600
2021-04-01 05:23:54,111 DEBUG crypto.OpensslAesCtrCryptoCodec: Using
org.apache.hadoop.crypto.random.OpensslSecureRandom as random number generator.
2021-04-01 05:23:54,111 DEBUG util.PerformanceAdvisory: Using crypto codec
org.apache.hadoop.crypto.OpensslAesCtrCryptoCodec.
...
For the latest information about Hadoop, please visit our website at:
http://hadoop.apache.org/
and our wiki, at:
$ bin/hadoop checknative 2>/dev/null
Native library checking:
hadoop: true
/home/centos/dist/hadoop-3.4.0-SNAPSHOT-HADOOP-17609/lib/native/libhadoop.so.1.0.0
zlib:true /lib64/libz.so.1
zstd : true /lib64/libzstd.so.1
bzip2: true /lib64/libbz2.so.1
openssl: true /lib64/libcrypto.so
ISA-L: true /lib64/libisal.so.2
PMDK:false The native code was built without PMDK support.
```
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