algebra: authenticated-poly: Add random method for random shared polys

renegade-fi · Oct 25, 2023 · 2b49548 · 2b49548
1 parent 67457b2
commit 2b49548
Showing 1 changed file with 6 additions and 0 deletions.
diff --git a/src/algebra/poly/authenticated_poly.rs b/src/algebra/poly/authenticated_poly.rs
@@ -62,6 +62,12 @@ impl<C: CurveGroup> AuthenticatedDensePoly<C> {
         self.coeffs.len() - 1
     }
 
+    /// Sample a random polynomial of given degree
+    pub fn random(d: usize, fabric: &MpcFabric<C>) -> Self {
+        let coeffs = fabric.random_shared_scalars_authenticated(d + 1);
+        Self::from_coeffs(coeffs)
+    }
+
     /// Get the fabric underlying the polynomial
     pub fn fabric(&self) -> &MpcFabric<C> {
         self.coeffs[0].fabric()