# Change Ciphertext Modulus BGV

**URL:** <https://openfhe.discourse.group/t/change-ciphertext-modulus-bgv/2044>\
**Category:** Library Questions\
**Created:** [May 29, 2025, 9:24am UTC](https://openfhe.discourse.group/t/change-ciphertext-modulus-bgv/2044 "2025-05-29T09:24:56Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![nadir.murru](https://avatars.discourse-cdn.com/v4/letter/n/71e660/32.png) [@nadir.murru](https://openfhe.discourse.group/u/nadir.murru)\
**Post date:** [May 29, 2025, 9:24am UTC](https://openfhe.discourse.group/t/change-ciphertext-modulus-bgv/2044/1 "2025-05-29T09:24:56Z")

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Hello!  
I’m using OpenFHE to study the BGV scheme and I would like to manually set the ciphertext modulus and the tower of moduli. I couldn’t find a way to do it, is it possible?

Thanks in advance!  
Nadir

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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:** [May 29, 2025, 10:23pm UTC](https://openfhe.discourse.group/t/change-ciphertext-modulus-bgv/2044/2 "2025-05-29T22:23:02Z")

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It is not possible at the moment. This potential feature has been discussed but we do not have any plan for it yet.

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**Author:** ![nadir.murru](https://avatars.discourse-cdn.com/v4/letter/n/71e660/32.png) [@nadir.murru](https://openfhe.discourse.group/u/nadir.murru)\
**Post date:** [May 30, 2025, 6:52am UTC](https://openfhe.discourse.group/t/change-ciphertext-modulus-bgv/2044/3 "2025-05-30T06:52:40Z")

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Thank you for the confirmation.