v.21.9Experimental Feature

Added AES_128_GCM_SIV Compression Codec for Column Encryption

Official CH changelog text
Added a compression codec AES_128_GCM_SIV which encrypts columns instead of compressing them. #19896 (PHO). Will be rewritten, do not use.
Added a new compression codec AES_128_GCM_SIV that encrypts columns instead of compressing them.

Why it matters

This feature provides column-level encryption in ClickHouse, securing data by encrypting it during storage. It aims to enhance data confidentiality while utilizing the existing codec framework.

How to use it

To use this feature, specify the AES_128_GCM_SIV codec in your column definition. Note that this codec currently encrypts data rather than compressing it. Usage is experimental and may be changed or rewritten, so it is not recommended for production environments yet.

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