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https://issues.apache.org/jira/browse/HADOOP-19197?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18009980#comment-18009980
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ASF GitHub Bot commented on HADOOP-19197:
-----------------------------------------
steveloughran opened a new pull request, #7830:
URL: https://github.com/apache/hadoop/pull/7830
Followup the main HADOOP-19197 patch to address serialization and
compilation issues
* Recreate serialization ID
* Restore two arg constructor
* Define DEFAULT_S3_ENCRYPTION_CONTEXT to specify what the default value is
(just "", but being explicit)
* Tests
### How was this patch tested?
Unit tests. ITests failures are meaningless until #7814 is in.
### For code changes:
- [ ] Does the title or this PR starts with the corresponding JIRA issue id
(e.g. 'HADOOP-17799. Your PR title ...')?
- [ ] Object storage: have the integration tests been executed and the
endpoint declared according to the connector-specific documentation?
- [ ] If adding new dependencies to the code, are these dependencies
licensed in a way that is compatible for inclusion under [ASF
2.0](http://www.apache.org/legal/resolved.html#category-a)?
- [ ] If applicable, have you updated the `LICENSE`, `LICENSE-binary`,
`NOTICE-binary` files?
> S3A: Support AWS KMS Encryption Context
> ---------------------------------------
>
> Key: HADOOP-19197
> URL: https://issues.apache.org/jira/browse/HADOOP-19197
> Project: Hadoop Common
> Issue Type: New Feature
> Components: fs/s3
> Affects Versions: 3.4.0
> Reporter: Raphael Azzolini
> Assignee: Raphael Azzolini
> Priority: Major
> Labels: pull-request-available
> Fix For: 3.5.0, 3.4.2
>
>
> S3A properties allow users to choose the AWS KMS key
> ({_}fs.s3a.encryption.key{_}) and S3 encryption algorithm to be used
> (f{_}s.s3a.encryption.algorithm{_}). In addition to the AWS KMS Key, an
> encryption context can be used as non-secret data that adds additional
> integrity and authenticity to check the encrypted data. However, there is no
> option to specify the [AWS KMS Encryption
> Context|https://docs.aws.amazon.com/kms/latest/developerguide/concepts.html#encrypt_context]
> in S3A.
> In AWS SDK v2 the encryption context in S3 requests is set by the parameter
> [ssekmsEncryptionContext.|https://sdk.amazonaws.com/java/api/latest/software/amazon/awssdk/services/s3/model/CreateMultipartUploadRequest.Builder.html#ssekmsEncryptionContext(java.lang.String)]
> It receives a base64-encoded UTF-8 string holding JSON with the encryption
> context key-value pairs. The value of this parameter could be set by the user
> in a new property {_}*fs.s3a.encryption.context*{_}, and be stored in the
> [EncryptionSecrets|https://github.com/apache/hadoop/blob/trunk/hadoop-tools/hadoop-aws/src/main/java/org/apache/hadoop/fs/s3a/auth/delegation/EncryptionSecrets.java]
> to later be used when setting the encryption parameters in
> [RequestFactoryImpl|https://github.com/apache/hadoop/blob/f92a8ab8ae54f11946412904973eb60404dee7ff/hadoop-tools/hadoop-aws/src/main/java/org/apache/hadoop/fs/s3a/impl/RequestFactoryImpl.java].
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