apache / apache/arrow-rs

Support the AES-GCM-CTR-V1 encryption algorithm for Parquet modular encryption

Open
#7,258 1 comment 0 reactions 0 assignees View on GitHub
enhancement
Dominant language
Rust
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Forks
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Avg merge
2d 18h
Merged PRs (30d)
169

Description

Follow up task to https://github.com/apache/arrow-rs/pull/6637, which adds read support for files that use Parquet modular encryption.

Currently only the AES-GCM-V1 algorithm is supported. AES-GCM-CTR-V1 requires using un-authenticated AES-CTR for data pages, which isn't yet supported by the Ring library.

There's a Ring issue open for this and the maintainer has expressed that they'd be open to accepting this feature but it isn't planned: https://github.com/briansmith/ring/issues/414

For details on the two algorithms, see https://github.com/apache/parquet-format/blob/master/Encryption.md#42-parquet-encryption-algorithms.

Contributor guide

Open the contributing guide

Research direction

Start by reviewing PR 6637's Parquet modular-encryption read support and the Parquet Encryption.md section linked in the issue. Check Ring issue 414 to understand the upstream AES-CTR limitation and whether the required support is available. Done means arrow-rs can read files using AES-GCM-CTR-V1 as well as AES-GCM-V1.

Written by the indexing model from the issue text.

Assessment

Tech stack
rust
Domain
cryptography
Issue type
Feature
Difficulty
5/5
Estimated time
Over a week
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
25/100

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