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https://issues.apache.org/jira/browse/PARQUET-2223?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jiashen Zhang updated PARQUET-2223:
-----------------------------------
Issue Type: New Feature (was: Task)
Priority: Major (was: Minor)
> Parquet Data Masking for Column Encryption
> ------------------------------------------
>
> Key: PARQUET-2223
> URL: https://issues.apache.org/jira/browse/PARQUET-2223
> Project: Parquet
> Issue Type: New Feature
> Reporter: Jiashen Zhang
> Priority: Major
>
> h1. Background
> h2. What is Data Masking?
> Data masking is the process of obfuscating sensitive data. Instead of
> revealing PII data, masking allows us to return NULLs, hashes or redacted
> data in its place. With data masking, users who are in the correct permission
> groups can retrieve the original data and users without permissions will
> receive masked data.
> h2. Why do we need it?
> * Fined-Grained Access Control
> h2. Why do we want to enhance data masking?
>
> Users might not have all permissions for all columns, existing code doesn’t
> have support for us to skip columns that users don’t have permissions to
> access. This enhancement will add this support so that users can decide to
> skip some columns to avoid decryption error.
> h1. Design Requirements
> # Users can skip some columns with a configuration
> h1. Proposed solution
> Key idea is to modify the request schema by removing skipped columns from the
> schema.
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