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https://issues.apache.org/jira/browse/HADOOP-18708?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17865041#comment-17865041
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ASF GitHub Bot commented on HADOOP-18708:
-----------------------------------------
shameersss1 commented on code in PR #6884:
URL: https://github.com/apache/hadoop/pull/6884#discussion_r1673936726
##########
hadoop-tools/hadoop-aws/src/main/java/org/apache/hadoop/fs/s3a/impl/CSEUtils.java:
##########
@@ -0,0 +1,180 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.hadoop.fs.s3a.impl;
+
+import io.netty.util.internal.StringUtil;
+import org.apache.hadoop.classification.InterfaceAudience;
+import org.apache.hadoop.classification.InterfaceStability;
+import org.apache.hadoop.fs.s3a.S3AEncryptionMethods;
+
+import software.amazon.awssdk.services.s3.S3Client;
+import software.amazon.awssdk.services.s3.model.GetObjectRequest;
+import software.amazon.awssdk.services.s3.model.HeadObjectRequest;
+import software.amazon.awssdk.services.s3.model.HeadObjectResponse;
+import software.amazon.awssdk.services.s3.model.NoSuchKeyException;
+
+import java.io.IOException;
+import java.io.InputStream;
+
+import static
org.apache.hadoop.fs.s3a.Constants.S3_ENCRYPTION_CSE_INSTRUCTION_FILE_SUFFIX;
+import static org.apache.hadoop.fs.s3a.S3AUtils.formatRange;
+import static org.apache.hadoop.fs.s3a.impl.AWSHeaders.CRYPTO_CEK_ALGORITHM;
+import static
org.apache.hadoop.fs.s3a.impl.AWSHeaders.UNENCRYPTED_CONTENT_LENGTH;
+import static
org.apache.hadoop.fs.s3a.impl.InternalConstants.CSE_PADDING_LENGTH;
+
+/**
+ * S3 client side encryption (CSE) utility class.
+ */
+@InterfaceAudience.Private
+@InterfaceStability.Evolving
+public final class CSEUtils {
Review Comment:
ack
> AWS SDK V2 - Implement CSE
> --------------------------
>
> Key: HADOOP-18708
> URL: https://issues.apache.org/jira/browse/HADOOP-18708
> Project: Hadoop Common
> Issue Type: Sub-task
> Components: fs/s3
> Affects Versions: 3.4.0
> Reporter: Ahmar Suhail
> Assignee: Syed Shameerur Rahman
> Priority: Major
> Labels: pull-request-available
>
> S3 Encryption client for SDK V2 is now available, so add client side
> encryption back in.
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