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https://issues.apache.org/jira/browse/PARQUET-1659?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16935626#comment-16935626
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Gidon Gershinsky commented on PARQUET-1659:
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lets discuss these numbers via mail, or google doc, etc, to spare the dev
mailing list subscribers.
> Add AES-CTR to Parquet Encryption
> ----------------------------------
>
> Key: PARQUET-1659
> URL: https://issues.apache.org/jira/browse/PARQUET-1659
> Project: Parquet
> Issue Type: Improvement
> Components: parquet-cpp, parquet-format, parquet-mr
> Affects Versions: format-2.6.0
> Reporter: Xinli Shang
> Priority: Minor
> Labels: pull-request-available
>
> AES-GCM-CTR perform GCM encryption on metadata and CTR encryption on data.
> AES-CTR would perform CTR encryption on both.
> During Perf testing, we found AES-CTR can improve read/write performance by
> ~10% comparing with AES-GCM-CTR.
>
> I checked with Gidon and the initial assumption was that AES-GCM-CTR would
> have similar performance as AES-CTR. But with recent performance
> benchmarking, we found it is worthy to introduce AES-CTR. Since many
> companies strive for parquet performance improvement.
>
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