Changing Security Parameters

Library Questions
1

Hello,

I would like to know if any option exists to change security parameters like the Error distribution and the cyclotomic order. I can only find the function to change the plaintext modulus.

This is because I need to change the plaintext modulus to a way bigger value and I need to re-arrange the other parameter so not to lose security.

Thanks in advance :smiley:

2

Does the following (and in general, our examples) address your question?

3

Yes, thank you. I just can’t find where to check what is the Error Distribution and how I can change it.

4

The error distribution has a standard deviation of 3.19, as suggested in the HomomorphicEncryption.org security document

5

And is there any way to change any of the distribution settings?

6

Only internally in the library. You can search the code for 3.19. We do not expose to users it as OpenFHE follows the HomomorphicEncryption.org security guidelines.