feat(encryption): support AES-256 keys for reading Parquet data files - #2878
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blackmwk merged 3 commits intoJul 23, 2026
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xanderbailey
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Awesome stuff! Thanks Matt!
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Thanks @mbutrovich for this pr!
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Which issue does this PR close?
Depends on the arrow-rs 58.4.0 release tracked in apache/arrow-rs#10349.
What changes are included in this PR?
arrow/parquetdeps from58to58.4. arrow-rs 58.4.0 adds AES-256 for Parquet modular encryption (58.3.0 was AES-128 only), landed via [parquet] Allow more encryption algorithms arrow-rs#9203.assert_encrypted_parquet_roundtrip(key)helper with_aes_128and_aes_256callers.Note: 192-bit is not supported for data files. arrow-rs uses
ring, which has no AES-192-GCM. Can revisit later.Are these changes tested?
Yes. Unit test
test_read_encrypted_parquet_aes_256writes and reads back a 256-bit encrypted Parquet file. It fails on arrow-rs 58.3.0 (ringrejects the 32-byte key) and passes on 58.4.0.