Signing key generation works.

cryspen · May 30, 2024 · c771582 · c771582
1 parent 497470d
commit c771582
Showing 1 changed file with 3 additions and 1 deletion.
diff --git a/libcrux-ml-dsa/src/serialize.rs b/libcrux-ml-dsa/src/serialize.rs
@@ -83,7 +83,9 @@ fn serialize_error_ring_element_when_eta_is_4<const BYTES_FOR_OUTPUT: usize>(
     let mut serialized = [0u8; BYTES_FOR_OUTPUT];
 
     for (i, coefficients) in re.coefficients.chunks_exact(2).enumerate() {
-        serialized[i] = ((coefficients[1] as u8) << 4) | (coefficients[0] as u8);
+        let coefficient0 = (4 - coefficients[0]) as u8;
+        let coefficient1 = (4 - coefficients[1]) as u8;
+        serialized[i] = (coefficient1 << 4) | coefficient0;
     }
 
     serialized