# About multi-key CKKS

**URL:** <https://openfhe.discourse.group/t/about-multi-key-ckks/1920>\
**Category:** FHE Use Cases\
**Created:** [March 10, 2025, 2:47am UTC](https://openfhe.discourse.group/t/about-multi-key-ckks/1920 "2025-03-10T02:47:13Z")\
**Posts on this page:** 1\
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**Author:** ![ypolyakov](https://yyz1.discourse-cdn.com/flex031/user_avatar/openfhe.discourse.group/ypolyakov/32/47_2.png) [@ypolyakov](https://openfhe.discourse.group/u/ypolyakov)\
**Post date:** [March 10, 2025, 8:38pm UTC](https://openfhe.discourse.group/t/about-multi-key-ckks/1920/2 "2025-03-10T20:38:55Z")

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Yes, please see the following papers for details:

- [Efficient Multi-Key Homomorphic Encryption with Packed Ciphertexts with Application to Oblivious Neural Network Inference](https://eprint.iacr.org/2019/524)
- [Asymptotically Faster Multi-Key Homomorphic Encryption from Homomorphic Gadget Decomposition](https://eprint.iacr.org/2022/347)

Also see [Implementations of multi-key FHE schemes](https://openfhe.discourse.group/t/implementations-of-multi-key-fhe-schemes/1179) for more information.

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