# How choose security level

**URL:** <https://openfhe.discourse.group/t/how-choose-security-level/1485>\
**Category:** FHE Questions\
**Created:** [August 10, 2024, 11:33pm UTC](https://openfhe.discourse.group/t/how-choose-security-level/1485 "2024-08-10T23:33:48Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**Author:** ![andreea.alexandru](https://yyz1.discourse-cdn.com/flex031/user_avatar/openfhe.discourse.group/andreea.alexandru/32/378_2.png) [@andreea.alexandru](https://openfhe.discourse.group/u/andreea.alexandru)\
**Post date:** [August 12, 2024, 3:25pm UTC](https://openfhe.discourse.group/t/how-choose-security-level/1485/2 "2024-08-12T15:25:05Z")

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The ring dimension is determined not only by the security level, but also on the ciphertext modulus size, error distribution etc.

Please check other similar questions on the forum, for instance the ones below, to understand more about how parameters are set:

- [How to determine the security level by other parameters?](https://openfhe.discourse.group/t/how-to-determine-the-security-level-by-other-parameters/311)
- [Parameter settings in BFV, BGV, and CKKS](https://openfhe.discourse.group/t/parameter-settings-in-bfv-bgv-and-ckks/1283)
- [Changing ring dimension by mult\_depth value](https://openfhe.discourse.group/t/changing-ring-dimension-by-mult-depth-value/1392)
- [Why do my parameters not comply with 128 bit security?](https://openfhe.discourse.group/t/why-do-my-parameters-not-comply-with-128-bit-security/432)
- [How can i figure out the SecLevel manaully?](https://openfhe.discourse.group/t/how-can-i-figure-out-the-seclevel-manaully/1263)

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