Struct ShamirSS 

pub struct ShamirSS {
    pub p: u64,
    pub t: usize,
    pub n: usize,
}

Shamir (t, n) secret sharing over a prime field F_p.

WARNING

Educational implementation. Uses small prime fields, unsuitable for production.

Fields

p: u64

Field prime p

t: usize

Threshold t: minimum shares needed to reconstruct

n: usize

Total shares n

Implementations

impl ShamirSS

pub fn split(&self, secret: u64, coeffs: &[u64]) -> Vec<(u64, u64)>

Split secret s into n shares using a random degree-(t-1) polynomial.

Coefficients a[0]=s, a[1..t] come from coeffs (length t-1).

WARNING

In production, coefficients must be uniformly random elements of F_p.

pub fn reconstruct(&self, shares: &[(u64, u64)]) -> u64

Reconstruct secret from any t shares using Lagrange interpolation mod p.

shares: slice of (x_i, y_i) pairs.

Trait Implementations

impl Clone for ShamirSS

fn clone(&self) -> ShamirSS

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ShamirSS

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

Formats the value using the given formatter.