Gidon Gershinsky created ARROW-9960:
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Summary: [C++][Parquet] Enable external material and rotation for
encryption keys
Key: ARROW-9960
URL: https://issues.apache.org/jira/browse/ARROW-9960
Project: Apache Arrow
Issue Type: New Feature
Components: C++
Reporter: Gidon Gershinsky
Assignee: Revital Sur
Encryption key material keeps the information required to recover the keys by
Parquet readers. Currently, only "internal storage mode" is supported, where
the key material is stored inside Parquet file footers, and therefore can't be
rotated (re-wrapped with refreshed master keys) in immutable files. The new
mechanism in this Jira adds the advanced "external storage mode" for the key
material, where the key material is stored in separate small files, that enable
the key rotation. This mechanism will also implement the key rotation
functionality.
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