Struct Params 

pub struct Params {
    pub n: usize,
    pub q: u64,
    pub sigma_x1000: u64,
    pub t: u64,
}

FHE parameter set.

Fields

n: usize

Ring dimension (must be a power of 2).

q: u64

Ciphertext modulus (must be prime, q ≡ 1 mod 2N).

sigma_x1000: u64

Gaussian error standard deviation (as fixed-point × 1000).

t: u64

Plaintext modulus for encoding.

Implementations

impl Params

pub fn research_2048() -> Self

Research-grade parameters: N=2048, ~100-bit security. q is an NTT-friendly prime: q ≡ 1 (mod 2*2048 = 4096).

pub fn test_small() -> Self

Small parameters for fast testing: N=256. q/t ratio ≈ 48, giving about 5 bits of noise budget per coefficient.

pub fn test_tiny() -> Self

Tiny parameters for unit tests only: N=64.

pub fn ntt_root(&self) -> u64

Find a primitive 2N-th root of unity modulo q.

Trait Implementations

impl Clone for Params

fn clone(&self) -> Params

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Copy for Params

impl Debug for Params

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.